MAXIM MAX9975ARCCQ

19-0242; Rev 0; 6/05
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
Features
The MAX9975 dual, low-power, high-speed, pin electronics driver/comparator with 35mA load IC includes,
for each channel, a three-level pin driver, a dual comparator, variable clamps, and an active load. An additional differential comparator allows comparisons
between the two channels. The driver features a wide
voltage range and high-speed operation, includes highimpedance and active-termination (3rd-level drive)
modes, and is highly linear even at low voltage swings.
The dual comparator provides low dispersion (timing
variation) over a wide variety of input conditions, and
differential outputs. The clamps provide damping of
high-speed device-under-test (DUT) waveforms when
the device is configured as a high-impedance receiver.
The programmable load supplies up to 35mA of source
and sink current. The load facilitates contact/continuity
testing, at-speed parametric testing of IOH and IOL, and
pullup of high-output-impedance devices.
The MAX9975 provides high-speed, differential control
inputs and open-collector outputs with internal 50Ω termination resistors that make it CML compatible. These
features significantly reduce the discrete component
count on the circuit board.
♦ Low 1.6W/Channel (typ) Power Dissipation
♦ Greatly Reduced Power Penalty when Load
Commutated
♦ High Speed: 1200Mbps at 3VP-P and 1800Mbps
at 1VP-P
♦ Programmable 35mA Active-Load Current
♦ Low Timing Dispersion
♦ Wide -1.5V to +6.5V (MAX9975AR) or -1.0V to +7.0V
(MAX9975AZ) Operating Range
♦ Active Termination (3rd-Level Drive)
♦ Integrated Clamps
♦ Integrated Differential Comparator
♦ Interfaces Easily with Most Logic Families
♦ Internal 50Ω Termination Resistors
♦ Low Gain and Offset Errors
♦ Comparator Hysteresis Control from 0V to 15mV
Ordering Information
A 3-wire, low-voltage, CMOS-compatible serial interface programs the low-leakage and tri-state/terminate
operational configurations of the MAX9975.
The MAX9975ARCCQ operating range is -1.5V to +6.5V.
The MAX9975AZCCQ operating range is -1.0V to +7.0V.
The MAX9975 features power dissipation of only 1.6W
per channel. The device is available in a 100-pin, 14mm
x 14mm x 0.1mm body, and 0.5mm pitch TQFP. An
exposed 8mm x 8mm die pad on the top of the package
facilitates efficient heat removal. The device is specified
to operate with an internal die temperature of +60°C to
+100°C, and features a die temperature monitor output.
TEMP RANGE
PIN-PACKAGE
MAX9975ARCCQ
PART
0°C to +70°C
100 TQFP-EPR**
MAX9975ARCCQ+
0°C to +70°C
100 TQFP-EPR**
MAX9975AZCCQ*
0°C to +70°C
100 TQFP-EPR**
MAX9975AZCCQ+*
0°C to +70°C
100 TQFP-EPR**
*Future product—contact factory for availability.
**EPR = Exposed pad reversed (TOP).
+Denotes lead-free package.
Applications
Medium-Performance Commodity Memory ATE
Pin Configuration and Selector Guide appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
MAX9975
General Description
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
ABSOLUTE MAXIMUM RATINGS
MAX9975AR
VCC to GND .......................................................-0.3V to +11V
VEE to GND .....................................................-5.75V to +0.3V
DUT_ to GND ..................................................-2.75V to +7.5V
DHV_, DLV_, DTV_, CHV_, CLV_, COM_
to GND...............................................................-2.5V to +7.5V
CPHV_ to GND .................................................-1.0V to +8.5V
CPLV_ to GND...................................................-3.5V to +6.0V
DUT_ Short Circuit to -1.5V to +6.5V......................Continuous
MAX9975AZ
VCC to GND .....................................................-0.3V to +11.5V
VEE to GND......................................................-5.25V to +0.3V
DUT_ to GND...................................................-2.25V to +8.0V
DHV_, DLV_, DTV_, CHV_, CLV_, COM_
to GND...............................................................-2.0V to +8.0V
CPHV_ to GND ..................................................-0.5V to +9.0V
CPLV_ to GND...................................................-3.0V to +6.5V
DUT_ Short Circuit to -1.0V to +7.0V......................Continuous
VCC - VEE ...........................................................-0.3V to +16.75V
GS to GND .............................................................................±1V
LDH_, LDL_ to GND .................................................-0.3V to +6V
DATA_, NDATA_, RCV_, NRCV_ to GND .................-2.5V to +5V
LDEN_, NLDEN_ to GND..........................................-2.5V to +5V
DATA_ to NDATA_, RCV_ to NRCV_, LDEN_ to NLDEN_......±1.5V
TDATA_, TLDEN_ to GND ........................................-2.5V to +5V
DATA_, NDATA_ to TDATA_..................................................±2V
LDEN_, NLDEN_ to TLDEN_..................................................±2V
VCCO_ to GND ..........................................................-0.3V to +5V
SCLK, DIN, CS, RST to GND ......................................-1V to +5V
DHV_ to DLV_ ......................................................................±10V
DHV_ to DTV_ ......................................................................±10V
DLV_ to DTV_.......................................................................±10V
CHV_ or CLV_ to DUT_ ........................................................±10V
CH_, NCH_, CL_, NCL_ to GND..................................-1V to +5V
HYS_ Current ........................................................-1mA to +1mA
All Other Pins to GND ......................(VEE - 0.3V) to (VCC + 0.3V)
TEMP Current...................................................-0.5mA to +20mA
Power Dissipation (TA = +70°C)
100-Pin TQFP-EPR (derate 167mW/°C
above +70°C) ...............................................................13.3W*
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature .....................................................+150°C
Lead Temperature, Lead-Free (soldering, 10s)...............+260°C
Lead Temperature, Leaded (soldering, 10s)...................+300°C
*Dissipation wattage values are based on still air with no heat sink. Actual maximum power dissipation is a function of heat-extraction
techniques and may be substantially higher.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, TJ = +85°C, unless otherwise noted. All temperature coefficients are measured at TJ = +60°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER SUPPLIES
Positive Supply
VCC
Negative Supply
VEE
Positive Supply Current (Note 2)
Negative Supply Current (Note 2)
Power Dissipation (Notes 2, 3)
2
ICC
IEE
PD
MAX9975AR
9.5
9.75
10.5
MAX9975AZ
10.0
10.25
11.0
MAX9975AR
-5.25
-4.75
-4.50
MAX9975AZ
-4.75
-4.25
-4.00
VLDH_ = VLDL_ = 0V, RL ≥ 10MΩ
170
190
VLDH_ = VLDL_ = 3.5V, RL = 0,
VCOM_ = 1.5V, load enabled,
driver = high impedance
250
280
VLDH_ = VLDL_ = 0V, RL ≥ 10MΩ
-290
-320
VLDH_ = VLDL_ = 3.5V, RL = 0,
VCOM_ = -1V, load enabled,
driver = high impedance
-370
-410
VLDH_ = VLDL_ = 0V
3.2
3.6
VLDH_ = VLDL_ = 3.5V, RL = 0,
VCOM_ = 1.5V, load enabled,
driver = high impedance
3.7
4.1
_______________________________________________________________________________________
V
V
mA
mA
W
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, TJ = +85°C, unless otherwise noted. All temperature coefficients are measured at TJ = +60°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DUT_ CHARACTERISTICS
Operating Voltage Range
(Note 4)
Leakage Current in HighImpedance Mode
VDUT
-1.5
+6.5
MAX9975AZ
-1.0
+7.0
MAX9975AR
LLEAK = 0, VDUT_ = -1.5V,
0V, +3V, +6.5V
MAX9975AZ
LLEAK = 0, VDUT_ = -1V,
0V, +3V, +7V
±3
MAX9975AR
LLEAK = 1, VDUT_ = -1.5V,
0V, +3V, +6.5V
±15
MAX9975AZ
LLEAK = 1, VDUT_ = -1V,
0V, +3V, +7V
IDUT
Leakage Current in Low-Leakage
Mode
Combined Capacitance
MAX9975AR
CDUT
V
±3
µA
nA
±15
Driver in term mode (DUT_ = DTV_)
3
5
Driver in high-impedance mode
5
6
pF
Low-Leakage Enable Time
(Notes 5, 6)
20
µs
Low-Leakage Disable Time
(Notes 6, 7)
0.1
µs
CONTROL AND LEVELS INPUTS
LEVEL PROGRAMMING INPUTS (DHV_, DLV_, DTV_, CHV_, CLV_, CPHV_, CPLV_, COM_, LDH_, LDL_)
Input Bias Current
IBIAS
Settling Time
±25
To 0.1% of full-scale change
1
µA
µs
DIFFERENTIAL CONTROL INPUTS (DATA_, NDATA_, RCV_, NRCV_, LDEN_, NLDEN_)
Input High Voltage
VIH
0
3.5
V
Input Low Voltage
VIL
-0.2
+3.2
V
±0.15
±1.00
Between differential inputs
Differential Input Voltage
VDIFF
Between a differential input and its
termination voltage
±1.9
Input Bias Current
Input Termination Voltage
VTDATA_
VTLDEN_
Between signal and corresponding
termination voltage input
Input Termination Resistor
V
±25
µA
0
+3.5
V
47.5
52.5
Ω
1.45
V
SINGLE-ENDED CONTROL INPUTS ( CS, SCLK, DIN, RST )
Internal Threshold Reference
Internal Reference Output
Resistance
External Threshold Reference
VTHRINT
1.05
1.25
20
RO
kΩ
VTHR
0.43
1.73
V
Input High Voltage
VIH
VTHR +
0.2
3.5
V
Input Low Voltage
VIL
-0.1
VTHR 0.2
V
Input Bias Current
IB
±25
µA
_______________________________________________________________________________________
3
MAX9975
ELECTRICAL CHARACTERISTICS (continued)
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
ELECTRICAL CHARACTERISTICS (continued)
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, TJ = +85°C, unless otherwise noted. All temperature coefficients are measured at TJ = +60°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
50
MHz
SERIAL INTERFACE TIMING (Figure 6)
SCLK Frequency
SCLK Pulse-Width High
SCLK Pulse-Width Low
fSCLK
tCH
8
ns
tCL
8
ns
tCSS0
3.5
ns
CS High to SCLK High Setup
tCSS1
3.5
ns
SCLK High to CS High Hold
tCSH1
3.5
ns
tDS
3.5
ns
tDH
3.5
ns
tCSWH
20
ns
CS Low to SCLK High Setup
DIN to SCLK High Setup
DIN to SCLK High Hold
CS Pulse-Width High
TEMPERATURE MONITOR (TEMP)
TJ = +70°C, RL ≥ 10MΩ
Nominal Voltage
Temperature Coefficient
Output Resistance
3.33
V
+10
mV/°C
20
kΩ
DRIVERS (Note 8)
DC OUTPUT CHARACTERISTICS (RL ≥ 10MΩ)
DHV_, DLV_, DTV_, Output Offset
Voltage
VOS
At DUT_ with VDHV_, VDTV_, VDLV_
independently tested at +1.5V
MAX9975AR
Output Offset Voltage Due to
Ground Sense
VGSOS
MAX9975AZ
±15
VGS = +100mV,
VDHV_ = 6.5V + 100mV
±2
VGS = -100mV,
VDLV_ = -1.5V - 100mV
±2
VGS = +100mV,
VDHV_ = 7V + 100mV
±2
VGS = -100mV,
VDLV_ = -1V - 100mV
±2
mV
DHV_, DLV_, DTV_ Output-Offset
Temperature Coefficient
DHV_, DLV_, DTV_ Gain
+200
AV
Measured with VDHV_, VDLV_, and VDTV_ at
0V and 4.5V
DHV_, DLV_, DTV_ Gain
Temperature Coefficient
Linearity Error
4
0.997
1.00
µV/°C
1.003
-50
VDUT_ = 1.5V, 3V (Note 9)
±5
±15
MAX9975AR
VDLV_ = 0V,
VDHV_ = 200mV, 6.5V
±2
MAX9975AZ
VDLV_ = 0V,
VDHV_ = 200mV, 7V
±2
_______________________________________________________________________________________
V/V
ppm/°C
Full range (Notes 9, 10)
DHV_ to DLV_ Crosstalk
mV
mV
mV
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, TJ = +85°C, unless otherwise noted. All temperature coefficients are measured at TJ = +60°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
MAX9975AR
VDHV_ = 5V,
VDLV_ = -1.5V, +4.8V
±2
MAX9975AZ
VDHV_ = 5V,
VDLV_ = -1V, +4.8V
±2
MAX9975AR
VDHV_ = 3V, VDLV_ = 0V,
VDTV_ = -1.5V, +6.5V
±2
MAX9975AZ
VDHV_ = 3V, VDLV_ = 0V,
VDTV_ = -1V, +7V
±2
DLV_ to DHV_ Crosstalk
DTV_ to DLV_ and DHV_
Crosstalk
UNITS
mV
mV
DHV_ to DTV_ Crosstalk
VDTV_ = 1.5V, VDLV_ = 0V,
VDHV_ = 1.6V, 3V
±2
mV
DLV_ to DTV_ Crosstalk
VDTV_ = 1.5V, VDHV_ = 3V,
VDLV_ = 0V, 1.4V
±2
mV
(Note 11)
±18
mV/V
±80
mA
Ω
DHV_, DTV_, DLV_ DC PowerSupply Rejection Ratio
PSRR
Maximum DC Drive Current
IDUT_
DC Output Resistance
RDUT_
DC Output Resistance Variation
ΔRDUT_
±40
48
49
IDUT _ = ±1mA, ±8mA
IDUT_ = ±30mA (Note 12)
47
0.5
1
IDUT _ = ±1mA, ±8mA, ±15mA, ±40mA
0.75
1.5
VDLV_ = 0V, VDHV_ = 0.1V
15
22
VDLV_ = 0V, VDHV_ = 1V
110
130
VDLV_ = 0V, VDHV_ = 3V
210
370
4
11
Ω
DYNAMIC OUTPUT CHARACTERISTICS (ZL = 50Ω)
AC Drive Current
±80
Drive-Mode Overshoot
VDLV_ = 0V, VDHV_ = 0.1V
Drive-Mode Undershoot
mA
VDLV_ = 0V, VDHV_ = 1V
20
65
VDLV_ = 0V, VDHV_ = 3V
30
185
VDUT_ = 1.0VP-P, tR = tF = 250ps,
10% to 90%
60
150
High-Impedance-Mode Spike
mV
mV
Term-Mode Overshoot (Note 13)
Term-Mode Spike
mV
VDUT_ = 3.0VP-P, tR = tF = 500ps,
10% to 90%
0
VDHV_ = VDTV_ = 1V, VDLV_ = 0V
180
250
VDLV_ = VDTV_ = 0V, VDHV_ = 1V
180
250
VDLV_ = -1.0V, VDHV_ = 0V
100
VDLV_ = 0V, VDHV_ = 1V
100
mV
mV
Settling Time to within 25mV
3V step (Note 14)
4
ns
Settling Time to within 5mV
3V step (Note 14)
40
ns
_______________________________________________________________________________________
5
MAX9975
ELECTRICAL CHARACTERISTICS (continued)
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
ELECTRICAL CHARACTERISTICS (continued)
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, TJ = +85°C, unless otherwise noted. All temperature coefficients are measured at TJ = +60°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TIMING CHARACTERISTICS (ZL = 50Ω) (Note 15)
Prop Delay, Data to Output
tPDD
1.2
Prop-Delay Match, tLH vs. tHL
3VP-P
Prop-Delay Match, Drivers within
Package
(Note 16)
Prop-Delay Temperature
Coefficient
Prop-Delay Change vs. Pulse
Width
1.5
1.9
ns
±40
±100
ps
40
ps
+1.6
ps/°C
0.2VP-P, 40MHz, 0.6ns to 24.4ns pulse
width, relative to 12.5ns pulse width
±25
±50
1VP-P, 40MHz, 0.6ns to 24.4ns pulse width,
relative to 12.5ns pulse width
±25
±50
3VP-P, 40MHz, 0.9ns to 24.1ns pulse width,
relative to 12.5ns pulse width
±35
±60
5VP-P, ZL = 500Ω, 40MHz, 1.4ns to 23.6ns
pulse width, relative to 12.5ns pulse width
±100
ps
MAX9975AR
VDHV_ - VDLV_ = 1V,
VDHV_ = 0 to 6V
50
75
MAX9975AZ
VDHV_ - VDLV_ = 1V,
VDHV_ = 0.5V to 6.5V
50
75
Prop-Delay Change vs. CommonMode Voltage
ps
Prop Delay, Drive to High
Impedance
tPDDZ
VDHV_ = 1.0V, VDLV_ = -1.0V,
VDTV_ = 0V
1.6
2.1
2.6
ns
Prop Delay, High Impedance to
Drive
tPDZD
VDHV_ = 1.0V, VDLV_ = -1.0V,
VDTV_ = 0V
2.6
3.2
3.9
ns
-1.5
-1.1
-0.7
ns
Prop-Delay Match, tPDDZ vs. tPDZD
Prop-Delay Match, tPDDZ vs. tLH
0.2
0.6
1.0
ns
Prop Delay, Drive to Term
tPDDT
VDHV_ = 3V, VDLV_ = 0V, VDTV_ = 1.5V
1.3
1.8
2.3
ns
Prop Delay, Term to Drive
tPDTD
VDHV_ = 3V, VDLV_ = 0V, VDTV_ = 1.5V
1.6
2.1
2.7
ns
Prop-Delay Match, tPDDT vs. tPDTD
-0.7
-0.3
+0.1
ns
Prop-Delay Match, tPDDT vs. tLH
-0.1
+0.3
+0.7
ns
0.2VP-P, 10% to 90%
300
350
400
1VP-P, 10% to 90%
330
390
450
2VP-P
430
500
570
3VP-P, 10% to 90%
500
650
750
5VP-P, ZL = 500Ω, 10% to 90%
800
1000
1200
DYNAMIC PERFORMANCE (ZL = 50Ω)
Rise and Fall Time
Rise and Fall Time Match
6
tR, tF
tR vs. tF
3VP-P, 10% to 90%
±50
_______________________________________________________________________________________
ps
ps
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, TJ = +85°C, unless otherwise noted. All temperature coefficients are measured at TJ = +60°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
Minimum Pulse Width (Note 17)
Data Rate (Note 18)
Dynamic Crosstalk
CONDITIONS
MIN
TYP
MAX
0.2VP-P
550
1VP-P
550
2VP-P
650
750
3VP-P
850
1000
5VP-P, ZL = 500Ω
1300
0.2VP-P
1800
1VP-P
1800
2VP-P
1500
3VP-P
1200
5VP-P, ZL = 500Ω
800
(Note 19)
12
UNITS
630
ps
Mbps
mVP-P
Rise and Fall Time, Drive to Term
tDTR, tDTF
VDHV_ = 3V, VDLV_ = 0V, VDTV_ = 1.5V,
10% to 90%, Figure 1a (Note 20)
0.6
1.0
1.3
ns
Rise and Fall Time, Term to Drive
tTDR, tTDF
VDHV_ = 3V, VDLV_ = 0V, VDTV_ = 1.5V,
10% to 90%, Figure 1b (Note 20)
0.6
1.0
1.3
ns
MAX9975AR
-1.5
+6.5
MAX9975AZ
-1.0
+7.0
COMPARATORS (Note 8)
COMPARATOR DC CHARACTERISTICS
Input Voltage Range (Note 4)
Differential Input Voltage
Input Offset Voltage
VIN
VDIFF
VOS
±8
Common-Mode Rejection Ratio
(Note 21)
±20
±10
CMRR
VDUT_ = -1.5V, +6.5V
±0.25
±2
MAX9975AZ
VDUT_ = -1V, +7V
±0.25
±2
Linearity Error
(Note 9)
MAX9975AZ
PSRR
VDUT_ = 1.5V, 3V
±3
VDUT_ = -1.5V, +6.5V
±10
VDUT_ = 1.5V, 3V
±3
VDUT_ = -1V, +7V
±10
VDUT_ = 1.5V
±0.035
RHYS = open
0
RHYS = 5kΩ
2
mV
µV/°C
MAX9975AR
MAX9975AR
Power-Supply Rejection Ratio
(Note 11)
V
VDUT_ = 1.5V
Input Offset-Voltage Temperature
Coefficient
V
±2
mV/V
mV
mV/V
COMPARATOR HYSTERESIS
Input Hysteresis
RHYS = 3.8kΩ
5
RHYS = 2.9kΩ
10
RHYS = 2.3kΩ
15
mV
_______________________________________________________________________________________
7
MAX9975
ELECTRICAL CHARACTERISTICS (continued)
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
ELECTRICAL CHARACTERISTICS (continued)
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, TJ = +85°C, unless otherwise noted. All temperature coefficients are measured at TJ = +60°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
Term mode, tR = tF = 150ps
1.5
2.5
High-impedance mode
0.5
0.7
MAX
UNITS
COMPARATOR AC CHARACTERISTICS (Note 22)
Bandwidth
Minimum Pulse Width (Note 23)
Prop Delay
tPW(MIN)
tPDL
0.9
GHz
500
650
ps
1.3
1.7
ns
Prop-Delay Temperature
Coefficient
+1.7
Prop-Delay Match, High/Low vs.
Low/High
±10
Prop-Delay Match High vs. Low
Comparator
±50
ps
±80
ps
Prop-Delay Match, Comparators
within Package
(Note 16)
MAX9975AR
VCHV_ = VCLV_ = -1.4V
to +6.4V
MAX9975AZ
VCHV_ = VCLV_ = -0.9V
to +6.9V
Prop-Delay Dispersion vs.
Common-Mode Input (Note 24)
Prop-Delay Dispersion vs.
Overdrive
40
ps/°C
±50
ps
60
ps
VCHV_ = VCLV_ = 0.1V to 0.9V,
VDUT_ = 1VP-P, tR = tF = 250ps, 10% to
90% relative to timing at 50% point
40
60
±40
±70
ps
VCHV_ = VCLV_ = 40mV to 160mV,
VDUT_ = 0.2VP-P, tR = tF = 150ps, 10% to
90% relative to timing at 50% point
±40
±60
Prop-Delay Dispersion vs. Pulse
Width
0.6ns to 24.4ns pulse width, relative to
12.5ns pulse width
±30
±50
ps
Prop-Delay Dispersion vs. Slew
Rate
0.5V/ns to 6V/ns slew rate, relative to 4V/ns
slew rate
±30
±60
ps
VDUT_ = 1.0VP-P, tR = tF = 250ps,
term mode, 10% to 90% relative to timing at
50% point
±40
±70
VDUT_ = 1.0VP-P, tR = tF = 250ps,
high-impedance mode, 10% to 90% relative
to timing at 50% point
±250
±350
VDUT_ = 3VP-P, tR = tF = 500ps,
high-impedance mode, 10% to 90% relative
to timing at 50% point
±150
±200
Waveform Tracking 10% to 90%
DUT_ Slew-Rate Tracking
8
Term mode
6
High-impedance mode
5
_______________________________________________________________________________________
ps
V/ns
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, TJ = +85°C, unless otherwise noted. All temperature coefficients are measured at TJ = +60°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
3.5
V
COMPARATOR LOGIC OUTPUTS (CH_, NCH_, CL_, NCL_)
VCCO_ Voltage Range
VVCCO_
VCCO_ Current
IVCCO_
Output Low Voltage Compliance
1.5
Set by IOL, RTERM, and VCCO_
Output High Voltage
VOH
ICH_ = INCH_ = ICL_ = INCL_ = 0
Output Low Voltage
VOL
ICH_ = INCH_ = ICL_ = INCL_ = 0
VCCO_
- 0.1
ICH_ = INCH_ = ICL_ = INCL_ = 0
760
Internal Output Termination
Resistor
Single-ended measurement from VCCO_
to CH_, NCH_, CL_, NCL_
48
Differential Rise and Fall Times
tR, tF
mA
V
VCCO_
- 0.01
VCCO_
+ 0.02
VCCO_
- 0.8
Output Voltage Swing
RTERM
64
-0.5
20% to 80%
800
210
V
V
840
mV
52
Ω
250
ps
CLAMPS
High-Clamp Input Voltage Range
VCPH_
Low-Clamp Input Voltage Range
VCPL_
MAX9975AR
0
7.5
MAX9975AZ
0.5
8.0
MAX9975AR
-2.5
+5.0
MAX9975AZ
-2.0
+5.5
MAX9975AR
Clamp Offset Voltage
VOS
MAX9975AZ
At DUT_ with IDUT_ = 1mA,
VCPHV_ = 0V
±100
At DUT_ with IDUT_ = -1mA,
VCPLV_ = 0V
±100
At DUT_ with IDUT_ = 1mA,
VCPHV_ = 0.5V
±100
At DUT_ with IDUT_ = -1mA,
VCPLV_ = 0V
±100
Clamp Power-Supply Rejection
Ratio (Note 11)
±250
PSRR
MAX9975AZ
Voltage Gain
AV
Voltage-Gain Temperature
Coefficient
V
mV
Offset-Voltage Temperature
Coefficient
MAX9975AR
V
IDUT_ = 1mA, VCPHV_ = 0V
±10
IDUT_ = -1mA, VCPLV_ = 0V
±10
IDUT_ = 1mA, VCPHV_ = 0.5V
±10
IDUT_ = -1mA, VCPLV_ = 0V
±10
0.96
µV/°C
mV/V
1.005
-30
V/V
ppm/°C
_______________________________________________________________________________________
9
MAX9975
ELECTRICAL CHARACTERISTICS (continued)
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
ELECTRICAL CHARACTERISTICS (continued)
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, TJ = +85°C, unless otherwise noted. All temperature coefficients are measured at TJ = +60°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MAX9975AR
Clamp Linearity
MAX9975AZ
MAX9975AR
Short-Circuit Output Current
ISCDUT_
MAX9975AZ
Clamp DC Impedance
ROUT
Clamp DC Impedance Variation
MAX9975AZ
10
TYP
IDUT_ = 1mA,
VCPLV_ = -1.5V,
VCPHV_ = 0 to 6.5V
±10
IDUT_ = -1mA,
VCPHV_ = 6.5V,
VCPLV_ = -1.5V to +5.0V
±10
IDUT_ = 1mA,
VCPLV_ = -1.0V,
VCPHV_ = 0.5V to 7.0V
±10
IDUT_ = -1mA,
VCPHV_ = 7.0V,
VCPLV_ = -1.0V to +5.5V
±10
MAX
UNITS
mV
VCPHV_ = 0V,
VCPLV_ = -1.5V,
VDUT_ = 6.5V
40
80
VCPHV_ = 6.5V,
VCPLV_ = 5.0V,
VDUT_ = -1.5V
-80
-40
VCPHV_ = 0.5V,
VCPLV_ = -1.0V,
VDUT_ = 7.0V
40
80
VCPHV_ = 7.0V,
VCPLV_ = 5.5V,
VDUT_ = -1.0V
-80
-40
VCPHV_ = 3V, VCPLV_ = 0V,
IDUT_ = ±5mA and ±15mA
MAX9975AR
MIN
mA
48
53
VCPHV_ = 2.5V,
VCPLV_ = -1.5V
IDUT_ = 10mA,
20mA, 30mA
1.5
VCPHV_ = 6.5V
VCPLV_ = 2.5V,
IDUT_ = -10mA,
-20mA, -30mA
1.5
VCPHV_ = 2.5V,
VCPLV_ = -1.0V
IDUT_ = 10mA,
20mA, 30mA
1.5
VCPHV_ = 7.0V
VCPLV_ = 2.5V,
IDUT_ = -10mA,
-20mA, -30mA
1.5
Ω
Ω
______________________________________________________________________________________
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, TJ = +85°C, unless otherwise noted. All temperature coefficients are measured at TJ = +60°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ACTIVE LOAD (VCOM_ = 1.5V, RL > 1MΩ, driver in high-impedance mode, unless otherwise noted)
COM_ Voltage Range
VCOM_
Differential Voltage Range
COM_ Offset Voltage
VOS
MAX9975AR
-1.0
+6.0
MAX9975AZ
-0.5
+6.5
VDUT_ - VCOM_
-7.5
+7.5
V
±100
mV
ISOURCE = ISINK = 20mA
Offset-Voltage Temperature
Coefficient
COM_ Voltage Gain
+100
AV
VCOM_ = 0, 4.5V, ISOURCE = ISINK = 20mA
0.98
Voltage-Gain Temperature
Coefficient
COM_ Output Voltage PowerSupply Rejection Ratio
Output Resistance, Sink or
Source
Output Resistance, Linear Region
µV/°C
1.00
-10
PSRR
VCOM_ = -1V, +6V
ISOURCE = ISINK = 20mA
±3
±15
MAX9975AZ
VCOM_ = -0.5V, +6.5V
ISOURCE = ISINK = 20mA
±3
±15
Ro
MAX9975AZ
VDUT_ = 3.5V, 7.0V
with VCOM_ = -0.5V and
VDUT_ = -1.0V, +2.5V with
VCOM_ = +6.5V
Ro
Deadband
mV
VCOM_ = 2.5V,
ISOURCE = ISINK = 20mA (Note 11)
MAX9975AR
VDUT_ = 3V, 6.5V
with VCOM_ = -1V and
VDUT_ = -1.5V, +2V with
VCOM_ = +6.0V
V/V
ppm/°C
MAX9975AR
COM_ Linearity Error (Note 10)
V
±10
ISOURCE =
ISINK = 35mA
30
ISOURCE =
ISINK = 1mA
500
ISOURCE =
ISINK = 35mA
30
ISOURCE =
ISINK = 1mA
500
mV/V
kΩ
IDUT_ = ±33.25mA,
ISOURCE = ISINK = 35mA, VCOM_ = 2.5V
verified by deadband test
11
18
Ω
VCOM_ = 2.5V, 95% ISOURCE to 95% ISINK
700
1000
mV
40
mA
10
10.25
mA/V
0
µA
SOURCE CURRENT (VDUT_ = 4.5V)
Maximum Source Current
VLDL_ = 3.8V
Source Programming Gain
ATC
VLDL_ = 0.2V, 3V, VLDH_ = 0.1V
Source Current Offset (Combined
Offset of LDL_ and GS)
IOS
VLDL_ = 200mV
Source-Current Temperature
Coefficient
Source-Current Power-Supply
Rejection Ratio
Source Current Linearity (Note 25)
ISOURCE = 35mA
PSRR
36
9.75
-1000
-15
µA/°C
ISOURCE = 25mA
±60
ISOURCE = 35mA
±84
VLDL_ = 100mV, 1V, 2.25V
±60
VLDL_ = 3V
±130
µA/V
µA
______________________________________________________________________________________
11
MAX9975
ELECTRICAL CHARACTERISTICS (continued)
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
ELECTRICAL CHARACTERISTICS (continued)
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, TJ = +85°C, unless otherwise noted. All temperature coefficients are measured at TJ = +60°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
-36
mA
-9.75
mA/V
1000
µA
SINK CURRENT (VDUT_ = -1.5V, MAX9975AR; VDUT_ = -1.0V, MAX9975AZ)
Maximum Sink Current
VLDH_ = 3.8V
-40
Sink Programming Gain
ATC
VLDH_ = 0.2V, 3V, VLDL_ = 0.1V
Sink Current Offset (Combined
Offset of LDH_ and GS)
IOS
VLDH_ = 200mV
Sink-Current Temperature
Coefficient
Sink-Current Power-Supply
Rejection Ratio
-10.25
0
ISINK = 35mA
PSRR
Sink Current Linearity (Note 25)
-10
+8
µA/°C
ISINK = 25mA
±60
ISINK = 35mA
±84
VLDH_ = 100mV, 1V, 2.25V
±60
VLDH_ = 3V
±130
µA/V
µA/V
GROUND SENSE
GS Voltage Range
VGS
Verified by GS common-mode error test
-250
+250
VDUT_ = -1.5V,
VGS = ±250mV,
VLDH_ - VGS = 0.2V
±20
VDUT_ = +4.5V,
VGS = ±250mV,
VLDL_ - VGS = 0.2V
±20
mV
MAX9975AR
GS Common-Mode Error
µA
VDUT_ = -1V,
VGS = ±250mV,
VLDH_ - VGS = 0.2V
±20
VDUT_ = +4.5V,
VGS = ±250mV,
VLDL_ - VGS = 0.2V
±20
MAX9975AZ
GS Input Bias Current
VGS = 0V
±25
µA
AC CHARACTERISTICS (ZL = 50Ω to GND)
Enable Time (Note 26)
tEN
Disable Time (Note 26)
tDIS
Current Settling Time on
Commutation (Note 27)
ISOURCE = 10mA, VCOM_ = -1V
2.7
3.5
4.3
ISINK = 10mA, VCOM_ = 1V
2.7
3.5
4.3
ISOURCE = 10mA, VCOM_ = 1V
1.5
2
2.5
ISINK = 10mA, VCOM_ = -1V
1.5
2
2.5
To 10%
15
To 1.5%
50
To 10%
3
To 1.5%
15
ISOURCE = ISINK = 35mA, VCOM_ = 0V
200
ISOURCE = ISINK = 1mA
ISOURCE = ISINK = 20mA
Spike During Enable/Disable
Transition
12
______________________________________________________________________________________
5
300
ns
ns
ns
mV
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, TJ = +85°C, unless otherwise noted. All temperature coefficients are measured at TJ = +60°C to +100°C, unless otherwise noted.) (Note 1)
Note 1: All minimum and maximum DC measurements and driver 3V rise- and fall-time test limits are 100% production tested. All
other test limits are guaranteed by design. Tests are performed at nominal supply voltages, unless otherwise noted.
Note 2: Total for dual device at worst-case setting.
Note 3: Does not include above ground internal dissipation of the comparator outputs. Additional power dissipation is typically
(64mA x VVCCO_).
Note 4: Externally forced voltages may exceed this range provided that the Absolute Maximum Ratings are not exceeded.
Note 5: Transition time from LLEAK being asserted to leakage current dropping below specified limits.
Note 6: Based on simulation results only.
Note 7: Transition time from LLEAK being deasserted to output returning to normal operating mode.
Note 8: With the exception of offset and gain/CMRR tests, reference input values are calibrated for offset and gain.
Note 9: Relative to straight line between 0 and 4.5V.
Note 10: Specifications measured at the endpoints of the full range. Full range for the MAX9975AR is -1.3V ≤ VDHV_ ≤ +6.5V, -1.5V ≤
VDLV_ ≤ +6.3V, -1.5V ≤ VDTV_ ≤ +6.5V. Full range for the MAX9975AZ is -0.8V ≤ VDHV_ ≤ +7V, -1V ≤ VDLV_ ≤ +6.8V, -1V ≤
VDTV_ ≤ +7V.
Note 11: Change in offset voltage with power supplies independently set to their minimum and maximum values.
Note 12: Nominal target value is 48Ω. Contact factory for alternate trim selections within the 45Ω to 51Ω range.
Note 13: VDTV_ = midpoint of voltage swing, RS = 50Ω. Measurement is made using the comparator.
Note 14: Measured from the crossing point of DATA_ inputs to the settling of the driver output.
Note 15: Prop delays are measured from the crossing point of the differential input signals to the 50% point of the expected output
swing. Rise time of the differential inputs DATA_ and RCV_ are 250ps (10% to 90%).
Note 16: Rising edge to rising edge or falling edge to falling edge.
Note 17: Specified amplitude is programmed. At this pulse width, the output reaches at least 90% of its nominal (DC) amplitude. The
pulse width is measured at DATA_.
Note 18: Specified amplitude is programmed. Maximum data rate is specified in transitions per second. A square wave that reaches
at least 90% of its programmed amplitude may be generated at one-half of this frequency.
Note 19: Crosstalk from either driver to the other. Aggressor channel is driving 3VP-P into a 50Ω load. Victim channel is in term mode
with VDTV_ = +1.5V.
Note 20: Indicative of switching speed from DHV_ or DLV_ to
tDTF
DTV_ and DTV_ to DHV_ or DLV_ when VDLV_ < VDTV_
< VDHV_. If VDTV_ < VDLV_ or VDTV_ > VDHV_, switch90%
DHV_
ing speed is degraded by a factor of approximately 3.
10%
Note 21: Change in offset voltage over the input range.
Note 22: Unless otherwise noted, all propagation delays are
DTV_
measured at 40MHz, V DUT_ = 0 to +1V, V CHV_ =
90%
VCLV_ = +0.5V, tR = tF = 250ps, ZS = 50Ω, driver in
DLV_
10%
term mode with VDTV_ = +0.5V. Comparator outputs
tDTR
are terminated with 50Ω to 0.9V and VCCO_ = 1.8V.
Measured from VDUT_ crossing calibrated CHV_/CLV_
(a) DRIVE-TO-TERM RISE AND FALL TIME
threshold to crossing point of differential outputs.
Note 23: At this pulse width, the output reaches at least 90% of
tTDR
its DC voltage swing. The pulse width is measured at
90%
DHV_
the crossing points of the differential outputs.
Note 24: VDUT_ = 200mVP-P. Overdrive = 100mV.
10%
Note 25: Relative to segmented interpolations between 200mV,
DTV_
2V, 2.5V, and 3.5V.
90%
Note 26: Measured from crossing of LDEN_ inputs to the 50%
point of the output current change.
DLV_
10%
Note 27: V COM = 1V, R S = 50Ω, driving voltage = 1.55V to
tTDF
0.45V transition and 0.45V to 1.55V transition (at 1mA)
(b) TERM-TO-DRIVE RISE AND FALL TIME
or +2.5V to -0.5V transition and -0.5V to +2.5V transition (at 20mA). Settling time is measured from VDUT_ =
1V to ISINK/ISOURCE settling within specified tolerance.
Figure 1. Drive-to-Term and Term-to-Drive Rise and Fall Times
______________________________________________________________________________________
13
MAX9975
ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, RDUT_ trimmed to 50Ω, TJ = +85°C, unless otherwise noted.)
VDHV_ = 100mV
VDLV_ = 0V
RL = 500Ω
CL = 0.1pF
VDHV_ = 3V
VDHV_ = 5V
VDHV_ = 3V
VDHV_ = 1V
VDHV_ = 1V
0
0
0
DRIVER 1V, 600Mbps
SIGNAL RESPONSE
DRIVER 1V, 1800Mbps
SIGNAL RESPONSE
DRIVER 3V, 400Mbps
SIGNAL RESPONSE
0
t = 500ps/div
0
t = 200ps/div
DRIVER 3V, 1200Mbps
SIGNAL RESPONSE
t = 1ns/div
DRIVER 3V TRAILING-EDGE TIMING
ERROR vs. PULSE WIDTH
DRIVER SOURCING
IDUT_ = 40mA/div
0
DRIVER SINKING
40
POSITIVE PULSE
20
TIMING ERROR (ps)
RL = 10Ω
MAX9975 toc08
MAX9975 toc07
DRIVER DYNAMIC
CURRENT-LIMIT RESPONSE
MAX9975 toc09
VDUT_ = 100mV/div
0
VDLV_ = 0V
VDHV_ = 3V
RL = 50Ω
VDUT_ = 250mV/div
VDUT_ = 100mV/div
VDLV_ = 0V, VDHV_ = 1V, RL = 50Ω
MAX9975 toc06
t = 2ns/div
MAX9975 toc05
t = 2ns/div
MAX9975 toc04
t = 2.0ns/div
VDLV_ = 0V, VDHV_ = 1V, RL = 50Ω
MAX9975 toc03
VDHV_ = 5V
VDUT_ = 1V/div
VDHV_ = 200mV
MAX9975 toc02
VDHV_ = 500mV
VDLV_ = 0V
RL = 50Ω
VDUT_ = 500mV/div
VDUT_ = 50mV/div
VDLV_ = 0V
RL = 50Ω
DRIVER LARGE-SIGNAL RESPONSE
INTO 500Ω
DRIVER LARGE-SIGNAL RESPONSE
MAX9975 toc01
DRIVER SMALL-SIGNAL RESPONSE
VDUT_ = 250mV/div
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
0
-20
NEGATIVE PULSE
-40
-60
VDLV_ = 0V
0 VDHV_ = 3V
RL = 50Ω
-80
NORMALIZED AT PW = 12.5ns
PERIOD = 25ns, VDHV_ = +3V, VDLV_ = 0V
-100
t = 250ps/div
t = 50ns/div
0
5
10
15
PULSE WIDTH (ns)
14
______________________________________________________________________________________
20
25
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
DRIVER 1V TRAILING-EDGE TIMING
ERROR vs. PULSE WIDTH
20
TIMING ERROR (ps)
0
-10
NEGATIVE PULSE
-30
0
-10
-20
NORMALIZED AT PW = 12.5ns,
PERIOD = 25ns
VDHV_ = +3V, VDLV_ = 0V
-40
-50
0
NEGATIVE PULSE
NORMALIZED AT PW = 12.5ns
PERIOD = 25ns, VDHV_ = +1V, VDLV_ = 0V
-15
NEGATIVE PULSE
-20
-25
NORMALIZED AT PW = 12.5ns,
PERIOD = 25ns
VDHV_ = +1V, VDLV_ = 0V
-40
0
5
10
15
25
20
0.6
1.2
1.8
2.4
3.0
3.6
4.2
4.8
PULSE WIDTH (ns)
DRIVER TIME DELAY
vs. COMMON-MODE VOLTAGE
DRIVE-TO-TERM TRANSITION
DRIVE TO
HIGH-IMPEDANCE TRANSITION
MAX9975 toc13
NORMALIZED AT VCM = 1.5V
MAX9975AR
5.4
MAX9975 toc15
PULSE WIDTH (ns)
MAX9975 toc14
PULSE WIDTH (ns)
50
40
-10
-35
-40
0.9 1.4 1.9 2.4 2.9 3.4 3.9 4.4 4.9 5.4
-5
-30
-30
-60
DHV_ TO HIGH IMPEDANCE
DHV_ TO DTV_
30
VDUT_ = 250mV/div
TIME DELAY (ps)
POSITIVE PULSE
10
POSITIVE PULSE
5
20
10
VDUT_ = 250mV/div
TIMING ERROR (ps)
10
10
TIMING ERROR (ps)
20
MAX9975 toc11
POSITIVE PULSE
-20
30
MAX9975 toc10
30
DRIVER 1V TRAILING-EDGE TIMING
ERROR vs. PULSE WIDTH
MAX9975 toc12
DRIVER 3V TRAILING-EDGE TIMING
ERROR vs. PULSE WIDTH
0
0
DLV_ TO DTV_
RISING EDGE
-10
DLV_ TO HIGH IMPEDANCE
0
FALLING EDGE
RL = 50Ω
RL = 50Ω
-20
0
1
2
3
4
5
t = 2.0ns/div
t = 2ns/div
DRIVER LINEARITY ERROR
vs. OUTPUT VOLTAGE
DRIVER LINEARITY ERROR
vs. OUTPUT VOLTAGE
6
4
2
0
-2
DUT_ = DLV_
VDHV_ = +6.5V
VDTV_ = 0V
MAX9975AR
6
4
8
2
0
-2
4
2
0
-2
-4
-4
-4
-6
-6
-6
-8
-8
-1.5 -0.5 0.5
1.5
2.5
3.5
VDUT_ (V)
4.5
5.5
6.5
DUT_ = DTV_
VDLV_ = -1.5V
VDHV_ = +6.5V
MAX9975AR
6
LINEARITY ERROR (mV)
LINEARITY ERROR (mV)
6
8
LINEARITY ERROR (mV)
DUT_ = DHV_
VDLV_ = -1.5V
VDTV_ = 0V
MAX9975AR
MAX9975 toc16
8
MAX9975 toc17
DRIVER LINEARITY ERROR
vs. OUTPUT VOLTAGE
MAX9975 toc18
COMMON-MODE VOLTAGE (V)
-8
-1.5 -0.5 0.5
1.5
2.5
3.5
VDUT_ (V)
4.5
5.5
6.5
-1.5 -0.5 0.5
1.5
2.5
3.5
4.5
5.5
6.5
VDUT_ (V)
______________________________________________________________________________________
15
MAX9975
Typical Operating Characteristics (continued)
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, RDUT_ trimmed to 50Ω, TJ = +85°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, RDUT_ trimmed to 50Ω, TJ = +85°C, unless otherwise noted.)
CROSSTALK TO DUT_ FROM
DHV_ WITH DUT_ = DLV_
0
-0.5
0.5
0
-0.5
-1.5
3.5
4.5
5.5
-1.5 -0.5 0.5
6.5
1.5
2.5
3.5
4.5
5.5
-1.5 -0.5 0.5
6.5
1.5
2.5
3.5
4.5
5.5
VDTV_ (V)
CROSSTALK TO DUT_ FROM
DTV_ WITH DUT_ = DLV_
CROSSTALK TO DUT_ FROM
DLV_ WITH DUT_ = DTV_
CROSSTALK TO DUT_ FROM
DHV_ WITH DUT_ = DTV_
0.6
0
-0.5
-1.0
-1.5
0.4
0.2
0
-0.2
NORMALIZED AT VDTV_ = 1.5V
0.6
1.5
2.5
3.5
4.5
5.5
0.2
0
-0.2
-0.4
-0.6
-0.6
-0.8
NORMALIZED AT VDLV_ = 0V
6.5
-1.5 -0.5 0.5
1.5
2.5
3.5
4.5
5.5
NORMALIZED AT VDHV_ = 3V
-1.0
-1.0
-1.5 -0.5 0.5
VDLV_ = -1.5V
VDTV_ = +1.5V
MAX9975AR
0.4
-0.4
-0.8
-2.0
0.8
VDUT_ ERROR (mV)
VDUT_ ERROR (mV)
1.0
0.5
VDHV_ = 6.5V
VDTV_ = 1.5V
MAX9975AR
0.8
1.0
MAX9975 toc23
MAX9975 toc22
1.0
-1.5 -0.5 0.5
6.5
1.5
2.5
3.5
4.5
5.5
VDTV_ (V)
VDLV_ (V)
VDHV_ (V)
DRIVER GAIN vs. TEMPERATURE
DRIVER OFFSET vs. TEMPERATURE
DRIVER OUTPUT-VOLTAGE ERROR
vs. GROUND-SENSE VOLTAGE
0.8
0.6
OFFSET (mV)
1.0000
0.9995
DUT_ ERROR (mV)
0.4
1.0005
0.2
0
-0.2
-0.4
DUT_ = DLV_
1.0
6.5
MAX9975 toc27
1.0010
1.5
MAX9975 toc26
1.0
MAX9975 toc25
1.0015
6.5
MAX9975 toc24
VDHV_ (V)
VDHV_ = 6.5V
VDLV_ = 0V
MAX9975AR
1.5
-2.0
VDLV_ (V)
2.0
VDUT_ ERROR (mV)
NORMALIZED AT VDTV_ = 1.5V
-2.0
2.5
-0.5
NORMALIZED AT VDHV_ = 5V
-2.0
1.5
0
-1.5
NORMALIZED AT VDLV_ = 0V
-1.5 -0.5 0.5
0.5
-1.0
-1.0
-1.5
VDHV_ = 3V
VDLV_ = 0V
MAX9975AR
1.0
VDUT_ ERROR (mV)
0.5
-1.0
0.5
DUT_ = DHV_
0
-0.5
-1.0
-0.6
0.9990
NORMALIZED AT TJ = +85°C
-1.5
-0.8
NORMALIZED AT TJ = +85°C
-1.0
0.9985
60
65
70
75
80
85
TEMPERATURE (°C)
16
1.5
1.0
VDUT_ ERROR (mV)
1.0
VDUT_ ERROR (mV)
VDLV_ = 0V
VDTV_ = 1.5V
MAX9975AR
1.5
2.0
MAX9975 toc20
VDHV_ = 5V
VDTV_ = 1.5V
MAX9975AR
1.5
2.0
MAX9975 toc19
2.0
CROSSTALK TO DUT_ FROM
DTV_ WITH DUT_ = DHV_
MAX9975 toc21
CROSSTALK TO DUT_ FROM
DLV_ WITH DUT_ = DHV_
GAIN (V/V)
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
90
95
100
60
65
70
75
80
85
TEMPERATURE (°C)
90
95
100
NORMALIZED AT VGS = 0V
-2.0
-0.3
-0.2
-0.1
0
VGS (V)
______________________________________________________________________________________
0.1
0.2
0.3
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
COMPARATOR TIMING VARIATION
vs. COMMON-MODE VOLTAGE
-0.5
-1.0
15
10
5
-2.0
1.5
2.5
3.5
4.5
5.5
6.5
1.5
2.5
3.5
4.5
5.5
COMPARATOR TRAILING-EDGE TIMING
VARIATION vs. PULSE WIDTH
-10
-15
LOW PULSE
-20
-25
-30
-10
-15
-20
-25
80
100
HIGH PULSE
0
LOW PULSE
-10
LOW PULSE
-20
-30
-30
-35
-40
-35
NORMALIZED AT PW = 12.5ns
-45
-50
-40
0
5
10
15
20
NORMALIZED AT PW = 12.5ns
RHYS = 2.4kΩ
NORMALIZED AT PW = 12.5ns
25
0.4
1.4
2.4
3.4
4.4
0
5.4
5
10
15
20
PULSE WIDTH (ns)
PULSE WIDTH (ns)
COMPARATOR TIMING VARIATION
vs. INPUT SLEW RATE
COMPARATOR DIFFERENTIAL
OUTPUT RESPONSE
COMPARATOR RESPONSE TO
HIGH SLEW-RATE OVERDRIVE
MAX9975 toc34
VDUT_ RISING
15
VDUT_ = 200mV/div
10
5
VDUT_ FALLING
0
VDUT_ = 0 TO 3V PULSE
VCHV_ = VCLV_ = 1.5V
EXTERNAL LOAD = 50Ω
-5
-10
INPUT SLEW RATE = 4V/ns
DRIVER IN HIGH-IMPEDANCE MODE
25
VDUT_ = 200mV/div
20
MAX9975 toc35
PULSE WIDTH (ns)
MAX9975 toc36
-40
TIMING VARIATION (ps)
60
10
TIMING VARIATION (ps)
TIMING VARIATION (ps)
-5
HIGH PULSE
-5
40
COMPARATOR WITH HYSTERESIS
TRAILING-EDGE TIMING VARIATION
vs. PULSE WIDTH
MAX9975 toc32
MAX9975 toc31
HIGH PULSE
0
20
REFERENCE LEVEL (%)
COMPARATOR TRAILING-EDGE TIMING
VARIATION vs. PULSE WIDTH
0
NORMALIZED AT 50% REFERENCE LEVEL
VDUT_ = 0 TO 1V PULSE
0
6.5
COMMON-MODE VOLTAGE (V)
5
TIMING VARIATION (ps)
-1.5 -0.5 0.5
COMMON-MODE VOLTAGE (V)
10
-30
-60
-10
-1.5 -0.5 0.5
RISING EDGE
-20
-50
NORMALIZED AT VCM = 1.5V
MAX9975AR
-5
NORMALIZED AT VCM = 1.5V
-10
-40
0
-1.5
0
MAX9975 toc33
0
FALLING EDGE
10
TIMING VARIATION (ps)
0.5
FALLING EDGE
20
TIMING VARIATION (ps)
OFFSET (mV)
1.0
RISING EDGE
25
20
MAX9975 toc29
OTHER COMPARATOR REFERENCE = 2.5V
MAX9975AR
1.5
COMPARATOR WAVEFORM TRACKING
30
MAX9975 toc28
2.0
MAX9975 toc30
COMPARATOR OFFSET
vs. COMMON-MODE VOLTAGE
0
-15
0
-20
NORMALIZED AT SR = 4V/ns
-25
0
1
2
3
4
5
6
7
t = 2ns/div
t = 2ns/div
SLEW RATE (V/ns)
______________________________________________________________________________________
17
MAX9975
Typical Operating Characteristics (continued)
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, RDUT_ trimmed to 50Ω, TJ = +85°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, RDUT_ trimmed to 50Ω, TJ = +85°C, unless otherwise noted.)
COMPARATOR OFFSET
vs. TEMPERATURE
HYSTERESIS (mV)
0.2
0.1
0
-0.1
11
9
7
-0.2
15.0
5
-0.3
-0.4
NORMALIZED AT TJ = +85°C
-0.5
65
70
75
80
85
90
95
14.5
14.0
13.5
3
13.0
1
12.5
100
RHYS_ = 2.4kΩ
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
60
6.0
65
70
75
80
85
90
TEMPERATURE (°C)
CLAMP RESPONSE AT SOURCE
ACTIVE-LOAD COMMUTATION
SIGNAL RESPONSE
ACTIVE-LOAD ENABLE
SIGNAL RESPONSE
IDUT_ = 10mA/div
VLDH_ = 2V
VLDL_ = 2V
IDUT_ = 10mA/div
VLDH_ = 2V
VLDL_ = 2V
VDUT_ = 200mV/div
VDUT_ = 0 TO 1V SQUARE WAVE
RS = 10Ω
VCPLV_ = -0.1V, VCPHV_ = +1.1V
0
95
100
MAX9975 toc42
RHYS_ (kΩ)
MAX9975 toc41
TEMPERATURE (°C)
MAX9975 toc40
60
MAX9975 toc39
13
HYSTERESIS (mV)
0.3
15.5
MAX9975 toc38
15
MAX9975 toc37
0.4
OFFSET (mV)
COMPARATOR HYSTERESIS
vs. TEMPERATURE
COMPARATOR HYSTERESIS
vs. RHYS_ TO GND
0.5
ILDH_
0
ILDL_
0
t = 5ns/div
t = 5ns/div
ACTIVE-LOAD CURRENT
vs. LOAD VOLTAGE
ACTIVE-LOAD LINEARITY
IDUT_ ERROR vs. VLDH_
ACTIVE-LOAD LINEARITY
IDUT_ ERROR vs. VLDL_
30
10
0
-10
-20
20
CALIBRATION POINTS AT
200mV, 2.0V, 2.5V, AND 3.5V
VCOM_ = 1.5V, VLDL_ = 0V
VDUT_ = 0V
50
40
30
LINEARITY ERROR (μA)
20
10
0
-10
-20
20
0
-10
-20
-30
-30
-40
-40
-40
-50
-50
VDUT_ (V)
CALIBRATION POINTS AT
200mV, 2.0V, 2.5V, AND 3.5V
VCOM_ = 1.5V, VLDH_ = 0V
VDUT_ = 3V
10
-30
1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4
18
40
MAX9975 toc44
VCOM_ = 2.5V
VLDH_ = 3.5V
VLDL_ = 3.5V
LINEARITY ERROR (μA)
30
50
MAX9975 toc43
40
MAX9975 toc45
t = 10ns/div
50
IDUT_ (mA)
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
-50
0.01
0.1
1
VLDH_ (V)
10
0.01
0.1
1
VLDL_ (V)
______________________________________________________________________________________
10
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
MAX9975AR
2
1000
MAX9975 toc47
MAX9975AR
800
-2
600
IDUT_ (μA)
700
0.7
IDUT_ (nA)
0
0.6
-4
VDUT_ = 3V
VCPLV = 0V
900
0.8
500
400
0.5
-6
300
0.4
-8
200
0.3
-10
0.2
-12
100
1.5
2.5
3.5
4.5
5.5
6.5
0
-100
-1.5 -0.5 0.5
VDUT_ (V)
1.5
2.5
3.5
4.5
5.5
3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0
6.5
VDUT_ (V)
VCPHV_ (V)
DRIVE 1V TO
LOW-LEAKAGE TRANSITION
CLAMP CURRENT
vs. DIFFERENCE VOLTAGE
MAX9975 toc49
100
0
-100
IDUT_ = 2.5μA/div
-200
RL = 100kΩ
CL = 10pF
MAX9975 toc50
-1.5 -0.5 0.5
IDUT_ (μA)
IDUT_ (μA)
4
MAX9975 toc46
1.0
0.9
CLAMP CURRENT
vs. DIFFERENCE VOLTAGE
LOW-LEAKAGE CURRENT
vs. DUT_ VOLTAGE
MAX9975 toc48
HIGH-IMPEDANCE CURRENT
vs. DUT_ VOLTAGE
-300
-400
-500
-600
-700
-800
-900
0
VDUT_ = 0V
VCPHV_ = 3V
-1000
-1.0 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0
0
t = 2μs/div
VCPLV_ (V)
______________________________________________________________________________________
19
MAX9975
Typical Operating Characteristics (continued)
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, RDUT_ trimmed to 50Ω, TJ = +85°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, RDUT_ trimmed to 50Ω, TJ = +85°C, unless otherwise noted.)
DRIVER REFERENCE CURRENT
vs. DRIVER REFERENCE VOLTAGE
COMPARATOR REFERENCE CURRENT
vs. INPUT VOLTAGE
MAX9975AR
1.15
0
MAX9975 toc52
MAX9975 toc51
1.20
DTV_
INPUT CURRENT (nA)
INPUT CURRENT (μA)
RL = 100kΩ
CL = 10pF
0
DHV_ AND DLV_
0.95
0.90
t = 50ns/div
-150
-200
CLV_
-250
-300
-350
-400
0.85
-450
0.80
0
CHV_
-100
1.05
1.00
MAX9975AR
-50
1.10
-500
-1.5 -0.5 0.5
1.5
2.5
3.5
4.5
5.5
6.5
-1.5 -0.5 0.5
INPUT VOLTAGE (V)
-700
-750
ICPLV_ (nA)
-850
-900
-950
500
-1000
-1050
450
0
1.5
3.0
4.5
6.0
-2.5
7.5
-1.0
0.5
2.0
5.0
3.5
VCPHV_ (V)
VCPLV_ (V)
LOAD-REFERENCE INPUT CURRENT
vs. INPUT VOLTAGE
INPUT CURRENT
vs. INPUT VOLTAGE, COM_
1.200
MAX9975 toc56
400
200
LDH_
1.175
MAX9975 toc57
ICPHV_ (nA)
600
550
MAX9975AR
1.150
0
1.125
ICOM_ (μA)
INPUT CURRENT (nA)
VCPHV_ = 7.2V
MAX9975AR
-800
650
-200
-400
1.100
1.075
1.050
1.025
-600
LDL_
1.000
-800
0.975
0.950
-1000
0
0.5
1.0
1.5
2.0
2.5
INPUT VOLTAGE (V)
20
3.5
MAX9975 toc55
700
2.5
INPUT CURRENT
vs. INPUT VOLTAGE, CPLV_
MAX9975 toc54
VCPLV_ = -2.2V
MAX9975AR
1.5
INPUT VOLTAGE (V)
INPUT CURRENT
vs. INPUT VOLTAGE, CPHV_
750
3.0
MAX9975 toc53
LOW-LEAKAGE TO
DRIVE 1V TRANSITION
IDUT_ = 2.5μA/div
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
3.5
4.0
-1.0
0
1.0
2.0
3.0
4.0
5.0
VCOM_ (V)
______________________________________________________________________________________
6.0
4.5
5.5
6.5
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
C
330
180
A
310
300
290
A
280
B
270
B
D
260
D
140
250
9.7
9.5
9.9
10.1
10.3
-5.25 -5.15 -5.05 -4.95 -4.85 -4.75 -4.65 -4.55
VEE (V)
10.5
VCC (V)
A: VDUT_ = VDTV_ = 1.5V, VDHV_ = 3V, VDLV_ = 0V,
VCHV_ = VCLV_ = 0V, VCPHV_ = 7.2V, VCPLV_ = -2.2V,
VLDH_ = VLDL_ = 0V, ISINK = ISOURCE = 0
B: SAME AS A EXCEPT DRIVER DISABLED HIGH IMPEDANCE
AND LOAD ENABLED
C: SAME AS B EXCEPT ISOURCE = ISINK = 35mA,
VCOM_ = -1V, RL = 0
D: SAME AS C EXCEPT LOW-LEAKAGE MODE ASSERTED
A: VDUT_ = VDTV_ = 1.5V, VDHV_ = 3V, VDLV_ = 0V,
VCHV_ = VCLV_ = 0V, VCPHV_ = 7.2V, VCPLV_ = -2.2V,
VLDH_ = VLDL_ = 0V, ISINK = ISOURCE = 0
B: SAME AS A EXCEPT DRIVER DISABLED HIGH IMPEDANCE
AND LOAD ENABLED
C: SAME AS B EXCEPT ISOURCE = ISINK = 35mA,
VCOM_ = 1.5V, RL = 0
D: SAME AS C EXCEPT LOW-LEAKAGE MODE ASSERTED
SUPPLY CURRENT ICC
vs. TEMPERATURE
165
164
VDUT_ = VDTV_ = 1.5V,
VDHV_ = 3V, VDLV_ = 0V,
VCHV_ = VCLV_ = 0V,
VCPHV_ = 7.2V, VCPLV_ = -2.2V,
VLDH_ = VLDL_ = 0V,
VCC = 9.75V, VEE = -4.75V
MAX9975AR
283
IEE (mA)
VDUT_ = VDTV_ = 1.5V,
VDHV_ = 3V, VDLV_ = 0V,
VCHV_ = VCLV_ = 0V,
VCPHV_ = 7.2V, VCPLV_ = -2.2V,
VLDH_ = VLDL_ = 0V,
VCC = 9.75V, VEE = -4.75V
MAX9975AR
166
ICC (mA)
SUPPLY CURRENT IEE vs. TEMPERATURE
284
MAX9975 toc60
167
MAX9975 toc61
160
RL = 10kΩ
CL = 0.5pF
VCC = 9.75V
MAX9975AR
320
RL = 10kΩ
CL = 0.5pF
VEE = -4.75V
MAX9975AR
200
C
340
IEE (mA)
ICC (mA)
220
350
MAX9975 toc58
240
MAX9975 toc59
SUPPLY CURRENT IEE
vs. SUPPLY VOLTAGE VEE
SUPPLY CURRENT ICC
vs. SUPPLY VOLTAGE VCC
282
281
163
280
162
60
65
70
75
80
85
TEMPERATURE (°C)
90
95
100
279
60
65
70
75
80
85
90
95
100
TEMPERATURE (°C)
______________________________________________________________________________________
21
MAX9975
Typical Operating Characteristics (continued)
(MAX9975AR: VCC = +9.75V, VEE = -4.75V, VCPHV_ = +7.2V, VCPLV_ = -2.2V. MAX9975AZ: VCC = +10.25V, VEE = -4.25V, VCPHV_ = +7.7V,
VCPLV_ = -1.7V. VCCO_ = +1.8V, VLDH_ = VLDL_ = 0V, VGS = 0V, RHYS_ = open, RDUT_ trimmed to 50Ω, TJ = +85°C, unless otherwise noted.)
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
Pin Description
PIN
NAME
1
TEMP
Temperature Monitor Output
2, 9, 12, 14,
17, 24, 35,
45, 46, 60,
80, 81, 91
VEE
Negative Power-Supply Input
3, 5, 10, 16,
21, 23, 25,
34, 43, 44,
82, 83, 92
GND
Ground Connection
4, 11, 15, 22,
33, 41, 42,
66, 84, 85, 93
VCC
Positive Power-Supply Input
6, 8, 18,
20, 54, 72
N.C.
No Connection. Do not connect.
22
FUNCTION
7
DUT1
13
GS
Channel 1 DUT Input/Output. Combined I/O for driver, comparator, clamp, and load.
19
DUT2
Channel 2 DUT Input/Output. Combined I/O for driver, comparator, clamp, and load.
26
CLV2
Channel 2 Low-Comparator Reference Input
27
CHV2
Channel 2 High-Comparator Reference Input
28
DLV2
Channel 2 Driver-Low Reference Input
29
DTV2
Channel 2 Driver-Termination Reference Input
30
DHV2
Channel 2 Driver-High Reference Input
31
CPLV2
Channel 2 Low-Clamp Reference Input
32
CPHV2
Channel 2 High-Clamp Reference Input
36
NCH2
37
CH2
38
VCCO2
39
NCL2
40
CL2
47
COM2
Ground Sense. GS is the ground reference for LDH_ and LDL_.
Channel 2 High-Comparator Output. Differential output of channel 2 high comparator.
Channel 2 Collector Voltage Input. Voltage input for channel 2 comparator output termination
resistors. Provides pullup voltage and current for the output termination resistors.
Channel 2 Low-Comparator Output. Differential output of channel 2 low comparator.
Channel 2 Active-Load Commutation-Voltage Reference Input
______________________________________________________________________________________
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
PIN
NAME
FUNCTION
48
LDL2
Channel 2 Active-Load Source-Current Reference Input
49
LDH2
Channel 2 Active-Load Sink-Current Reference Input
50
HYS2
Channel 2 Hysteresis Input for Single-Ended Compare Mode. See HYS1 when in differential
compare mode. Nominal VHYS2 = -1V.
51
TDATA2
52
NDATA2
53
DATA2
55
NRCV2
56
RCV2
57
TLDEN2
58
NLDEN2
59
LDEN2
61
RST
Reset Input. Asynchronous reset input for the serial register. RST is active low.
62
CS
Chip-Select Input. Serial port activation input. CS is active low.
63
THR
Single-Ended Logic Threshold. Leave THR unconnected to set the threshold to +1.25V or force
THR to a desired threshold voltage.
64
SCLK
65
DIN
67
LDEN1
68
NLDEN1
69
TLDEN1
Channel 2 Data-Termination Voltage Input. Termination voltage input for the DATA2 and NDATA2
differential inputs.
Channel 2 Multiplexer Control Inputs. Differential controls DATA2 and NDATA2 select driver 2’s
input from DHV2 or DLV2. Drive DATA2 above NDATA2 to select DHV2. Drive NDATA2 above
DATA2 to select DLV2.
Channel 2 Multiplexer Control Inputs. Differential controls RCV2 and NRCV2 place channel 2 in
receive mode. Drive RCV2 above NRCV2 to place channel 2 into receive mode. Drive NRCV2
above RCV2 to place channel 2 into drive mode.
Channel 2 Load-Enable Termination Voltage Input. Termination voltage input for the LDEN2 and
NLDEN2 differential inputs.
Channel 2 Multiplexer Control Inputs. Differential controls LDEN2 and NLDEN2 enable/disable the
active load. Drive LDEN2 above NLDEN2 to enable the channel 2 active load. Drive NLDEN2
above LDEN2 to disable the channel 2 active load.
Serial Clock Input. Clock for serial port.
Data Input. Serial port data input.
Channel 1 Multiplexer Control Inputs. Differential controls LDEN1 and NLDEN1 enable/disable the
active load. Drive LDEN1 above NLDEN1 to enable the channel 1 active load. Drive NLDEN1
above LDEN1 to disable the channel 1 active load.
Channel 1 Load-Enable Termination Voltage Input. Termination voltage input for the LDEN1 and
NLDEN1 differential inputs.
______________________________________________________________________________________
23
MAX9975
Pin Description (continued)
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
MAX9975
Pin Description (continued)
PIN
24
NAME
FUNCTION
Channel 1 Multiplexer Control Inputs. Differential controls RCV1 and NRCV1 place channel 1 in
receive mode. Drive RCV1 above NRCV1 to place channel 1 into receive mode. Drive NRCV1
above RCV1 to place channel 1 into drive mode.
70
RCV1
71
NRCV1
73
DATA1
74
NDATA1
75
TDATA1
Channel 1 Data-Termination Voltage Input. Termination voltage input for the DATA1 and NDATA1
differential inputs.
76
HYS1
Channel 1 Hysteresis Input for Single-Ended Compare Mode. Channel 1 and channel 2 hysteresis
input for differential compare mode. Nominal VHYS1 = -1V.
77
LDH1
Channel 1 Active-Load Sink-Current Reference Input
78
LDL1
Channel 1 Active-Load Source-Current Reference Input
79
COM1
Channel 1 Active-Load Commutation-Voltage Reference Input
Channel 1 Multiplexer Control Inputs. Differential controls DATA1 and NDATA1 select driver 1’s
input from DHV1 or DLV1. Drive DATA1 above NDATA1 to select DHV1. Drive NDATA1 above
DATA1 to select DLV1.
86
CL1
87
NCL1
88
VCCO1
89
CH1
90
NCH1
94
CPHV1
Channel 1 High-Clamp Reference Input
95
CPLV1
Channel 1 Low-Clamp Reference Input
96
DHV1
Channel 1 Driver-High Reference Input
97
DTV1
Channel 1 Driver-Termination Reference Input
98
DLV1
Channel 1 Driver-Low Reference Input
99
CHV1
Channel 1 High-Comparator Reference Input
100
CLV1
Channel 1 Low-Comparator Reference Input
Channel 1 Low-Comparator Output. Differential output of channel 1 low comparator.
Channel 1 Collector Voltage Input. Voltage input for channel 1 comparator output termination
resistors. Provides pullup voltage and current for the output termination resistors.
Channel 1 High-Comparator Output. Differential output of channel 1 high comparator.
______________________________________________________________________________________
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
CH_ MODE BITS
CS
SCLK
DIN
VCC
TMSEL
LLEAK
SERIAL INTERFACE
LDDIS
RST
VEE
SERIAL INTERFACE IS COMMON
TO BOTH CHANNELS.
MODE BITS INDEPENDENTLY
LATCHED FOR EACH CHANNEL.
TEMP
GND
THR
CDIFF
DLV_
DHV_
MULTIPLEXER
BUFFER
0
50Ω
DUT_
0
DTV_
1
RDATA
2 x 50Ω
LLEAK
TDATA_
TMSEL
DATA_
NDATA_
RCV_
NRCV_
HIGH IMPEDANCE
MAX9975
CLAMPS
FROM DUT_
OTHER CHANNEL
CPHV_
CPLV_
0
CHV_
HYS_
CH_
NCH_
1
CDIFF
RCCO
4 x 50Ω
VCCO_
COMPARATORS
CL_
NCL_
VCC
SINK
(HIGH)
CURRENT
CLV_
LDH_
LLEAK
TLDEN_
RLDEN
2 x 50Ω
LDDIS
1
ACTIVELOAD
CONTROL
ACTIVE
LOAD
LDEN_
NLDEN_
COM_
1
LDL_
SOURCE
(LOW)
CURRENT
GS
ONE OF TWO IDENTICAL CHANNELS SHOWN.
VEE
______________________________________________________________________________________
25
MAX9975
Functional Diagram
ferential/window comparator and tri-state/terminate
operational configurations of the MAX9975.
Detailed Description
The MAX9975 dual, low-power, high-speed, pin-electronics DCL IC includes, for each channel, a three-level
pin driver, a dual comparator, variable clamps, and an
active load. An additional differential comparator allows
comparisons between the two channels. The driver features a -1.5V to +6.5V (MAX9975AR) or a -1.0V to +7.0V
(MAX9975AZ) operating range and high-speed operation, includes high-impedance and active-termination
(3rd-level drive) modes, and is highly linear even at low
voltage swings. The dual comparator provides low dispersion (timing variation) over a wide variety of input conditions, and differential outputs. The clamps provide
damping of high-speed DUT waveforms when the device
is configured as a high-impedance receiver. The programmable load supplies up to 35mA of source and sink
current. The load facilitates contact/continuity testing, atspeed parametric test of IOH and IOL, and pullup of highoutput-impedance devices.
Internal resistors at the high-speed inputs provide compatibility with CML interfaces. In addition, flexible opencollector outputs with optional internal pullup resistors
are available for the comparators. These features significantly reduce the discrete component count on the
circuit board.
MAX9975 and MAX9969 Compatibility
The MAX9975 is pin compatible and functionally similar
to the MAX9969. The MAX9975 differs from the
MAX9969 in the following ways.
• The MAX9975 has lower DHV_, DLV_, and DTV_
gain errors.
The MAX9975 has no programmable slew-rate control;
the slew rate control bits are ignored.
•
The MAX9975 features programmable hysteresis.
•
The MAX9975 features double the comparator output current.
•
The MAX9975AZ features a -1V to +7V operating
range.
Output Driver
DUT_ can be toggled at high speed between the buffer
output and high-impedance mode, or it can be placed
into low-leakage mode (Figure 2, Table 1). In highimpedance mode, the clamps are connected. Highspeed input RCV_ and mode-control bits TMSEL and
REFERENCE
INPUTS
0
DLV_
0
BUFFER
DHV_
1
MAX9975
0
50Ω
0
DUT_
1
DTV_
1
DATA_
RCV_
HIGH IMPEDANCE
HIGH-SPEED
INPUTS
•
The driver input is a high-speed multiplexer that selects
one of three voltage inputs: DHV_, DLV_, or DTV_. This
switching is controlled by high-speed inputs DATA_
and RCV_ and mode-control bit TMSEL (Table 1).
A 3-wire, low-voltage CMOS-compatible serial interface
programs the low-leakage, load-disable, slew-rate, dif-
CPHV_
CPLV_
LLEAK
CLAMPS
TMSEL
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
COMPARATORS
AND
ACTIVE LOAD
2
MODE
Figure 2. Simplified Driver Channel
26
______________________________________________________________________________________
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
EXTERNAL
CONNECTIONS
INTERNAL
CONTROL
REGISTER
DRIVER
OUTPUT
DATA
RCV
TMSEL LLEAK
1
0
X
0
Drive to DHV_
0
0
X
0
Drive to DLV_
X
1
1
0
Drive to DTV_
(term mode)
X
1
0
0
High-impedance mode
(high-Z)
X
X
X
1
Low-leakage mode
LLEAK control the switching. In high-impedance mode,
the bias current at DUT_ is less than 3µA over the 0 to
3V range, while the node maintains its ability to track
high-speed signals. In low-leakage mode, the bias current at DUT_ is further reduced to less than 15nA, and
signal tracking slows. See the Low-Leakage Mode,
LLEAK section for more details.
The nominal driver output resistance can be trimmed to
different values. Contact the factory for different resistance values within the 45Ω to 51Ω range.
Clamps
Configure the voltage clamps (high, CPHV_ and low,
CPLV_) to limit the voltage at DUT_ and to suppress
reflections when the channel is configured as a highimpedance receiver. The clamps behave as diodes
connected to the outputs of high-current buffers.
Internal circuitry compensates for the diode drop at
1mA clamp current. Set the clamp voltages using the
external connections CPHV_ and CPLV_. The clamps
are enabled only when the driver is in high-impedance
mode (Figure 2). For transient suppression, set the
clamp voltages to approximately the minimum and
maximum expected DUT_ voltage range. The optimal
clamp voltages are application specific and must be
empirically determined. If clamping is not desired, set
the clamp voltages at least 0.7V outside the expected
DUT_ voltage range; overvoltage protection remains
active without loading DUT_.
Comparators
The MAX9975 provides two independent high-speed
comparators for each channel. Each comparator has one
input connected internally to DUT_ and the other input
connected to either CHV_ or CLV_ (see the Functional
Diagram). Comparator outputs are a logical result of the
input conditions, as indicated in Tables 2 and 3.
The comparator differential outputs are open-collector
outputs to ease interfacing with a wide variety of logic
families. Internal termination resistors switch a 16mA
current source between the two outputs (Figure 3). The
termination resistors connect the outputs to voltage input
VCCO_. Connect VCCO_ to the desired V OH voltage.
Each output provides a nominal 800mVP-P swing and
50Ω source termination. If an additional external 50Ω
destination termination is used to double-terminate the
line, the nominal 800mV swing will be halved.
The upper comparators are configurable as differential
receivers for LVDS and other differential DUT_ signals.
When mode bit CDIFF is asserted, the upper comparator inputs are routed from the DUT_ outputs for both
channels.
Hysteresis
The comparator function incorporates hysteresis control.
Hysteresis rejects noise and prevents oscillations on
low-slew input signals. External resistors control hysteresis levels. HYS1 controls channel 1 and HYS2 controls
channel 2, when the MAX9975 is programmed in singleended compare mode (CDIFF = 0). HYS1 also controls
channel 2’s high-comparator output when the MAX9975
is programmed in differential compare mode (CDIFF =
1). With HYS_ unconnected, the programmed hysteresis
is 0mV. Connect an external resistor between HYS_ and
GND to program nonzero hysteresis. See the Typical
Operating Characteristics for typical resistance values.
Table 2. Comparator Logic, CDIFF = 0
(Single-Ended Compare Mode)
SC1
SC0
DRIVER SLEW RATE (%)
0
0
100
0
1
75
1
0
50
1
1
25
Table 3. Comparator Logic, CDIFF = 1
(Differential Compare Mode)
DUT1 > DUT2 DUT_ > CLV_
CL_
CH_
0
0
0
0
0
1
1
0
1
0
0
1
1
1
1
1
______________________________________________________________________________________
27
MAX9975
Table 1. Driver Logic
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
FROM DUT_
OTHER CHANNEL
CDIFF
1
MAX9975
CH_
CHV_
DUT_
LDDIS
0
NCH_
1Ω
16mA
16mA
In some tester configurations, the load enable is driven
with the complement of the driver high-impedance signal (RCV_), so disabling the driver enables the load
and vice versa. The LDDIS signal allows the load to be
disabled independent of the state of LDEN_ (Table 4).
VCCO_
4 x 50Ω
1Ω
VEE
CL_
CLV_
NCL_
Figure 3. Open-Collector Comparator Outputs
Active Load
The active load consists of linearly programmable,
Class AB source and sink current sources, a commutation buffer, and a diode bridge (see the Functional
Diagram). Analog control inputs LDH_ and LDL_ program the sink and source currents, respectively, within
the 0 to 35mA range. Analog reference input COM_
sets the commutation buffer output voltage. The source
and sink naming convention is referenced to the DUT.
Current out of the MAX9975 constitutes sink current
and current into the MAX9975 constitutes source current. The Class AB loads of the MAX9975 offer substantial efficiency improvement over conventional
active-load circuitry.
The programmed source (low) current loads the DUT
when VDUT_ > VCOM_. The programmed sink (high)
current loads the DUT when VDUT_ < VCOM_.
High-speed differential input LDEN_ and 2 bits of the
control word (LDDIS and LLEAK) control the load
(Table 4). When the load is enabled, the internal source
and sink current sources connect to the diode bridge.
When the load is disabled, the internal current sources
28
shunt to ground and the top and bottom of the bridge
float (see the Functional Diagram). LLEAK places the
load in low-leakage mode, and overrides LDEN_. See the
Low-Leakage Mode, LLEAK section for more detailed
information.
GS Input
GS is the ground-sense input. A level-setting DAC, such
as the MAX5631 or MAX5734, programs the MAX9975’s
active load, driver, comparator, and clamps. Although
all the DAC levels are typically offset by VGS, the operation of the MAX9975’s ground-sense input nullifies this
offset with respect to the active-load current. Connect
GS to the same ground reference used by the DAC.
(VLDL_ - VGS) sets the source current by +10mA/V.
(VLDH_ - VGS) sets the sink current by -10mA/V.
To maintain an 8V range in the presence of GS variations,
GS offsets DHV_, DLV_, DTV_, CPHV_, CPLV_, and
COM_ ranges. Adequate supply headroom must be
maintained in the presence of GS variations. Ensure:
VCC ≥ 9.5V + Max(VGS) (MAX9975AR)
VCC ≥ 10.0V + Max(VGS) (MAX9975AZ)
VEE ≤ -4.5V + Min(VGS) (MAX9975AR)
VEE ≤ -4.0V + Min(VGS) (MAX9975AZ)
Low-Leakage Mode, LLEAK
Asserting LLEAK through the serial port or with RST
places the MAX9975 into a very low-leakage state (see
the Electrical Characteristics table). With LLEAK asserted, the comparators function at a reduced speed, and
Table 4. Active-Load Programming
EXTERNAL
CONNECTIONS
INTERNAL
CONTROL
REGISTER
MODE
LDEN_
LDDIS
LLEAK
0
0
0
Normal operating mode,
load disabled
1
0
0
Normal operating mode,
load enabled
X
1
0
Load disabled
X
X
1
Low-leakage mode
______________________________________________________________________________________
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
CDIFF
UNUSED*
UNUSED*
TMSEL
LLEAK
CH2
CH1
DIN
LDDIS
SHIFT REGISTER
0
1
2
3
4
5
6
7
CS
ENABLE
F/F
5
7
F/F
5
Q
D
D
6
ENABLE
Q
Serial Interface and Device Control
ENABLE
SET
A CMOS-compatible serial interface controls the
MAX9975 modes (Figure 4 and Table 5). Control data
flow into an 8-bit shift register (MSB first) and are
latched when CS is taken high, as shown in Figure 5.
Latches contain 6 control bits for each channel of the
dual-pin driver. Data from the shift register are loaded
to either or both of the latches as determined by bits D6
and D7. When CDIFF = 1, its effect is independent of
bits D6 and D7. The control bits, in conjunction with
external inputs DATA_ and RCV_, manage the features
of each channel, as shown in Tables 1 and 2. RST sets
LLEAK = 1 for both channels, forcing them into lowleakage mode. All other bits are unaffected. At powerup, hold RST low until VCC and VEE have stabilized.
SET
RST
F/F
0, 1, 4
7
F/F
D
0, 1, 4
Q
6
ENABLE
3
D
Q
ENABLE
1
3
1
20kΩ
VTHRINT = 1.25V
THR
MAX9975
LDDIS, LLEAK
TMSEL,
CDIFF
LDDIS, LLEAK
TMSEL,
CDIFF
CHANNEL 1 MODE BITS
CHANNEL 2 MODE BITS
*USED FOR SLEW-RATE CONTROL ON MAX9969.
Figure 4. Serial Interface
tCH
SCLK
tCSS0
tCSS1
tCL
tCSH1
CS
tCSWH
tDH
tDS
D6
DIN
D5
D4
D3
D2
D1
D0
Figure 5. Serial-Interface Timing
______________________________________________________________________________________
29
MAX9975
SCLK
the driver, clamps, and active load are disabled. This
mode is convenient for making IDDQ and PMU measurements without the need for an output disconnect relay.
LLEAK is programmed independently for each channel.
When DUT_ is driven with a high-speed signal while
LLEAK is asserted, the leakage current momentarily
increases beyond the limits specified for normal operation. The low-leakage recovery specification in the
Electrical Characteristics table indicates device behavior under this condition.
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
Heat Removal
Table 5. Shift Register Functions
BIT
NAME
DESCRIPTION
D7
CH1
Channel 1 Write Enable. Set to 1 to update the
control byte for channel 1. Set to 0 to make no
changes to channel 1.
D6
CH2
Channel 2 Write Enable. Set to 1 to update the
control byte for channel 2. Set to 0 to make no
changes to channel 2.
D5
Low-Leakage Select. Set to 1 to put driver,
load, and clamps in low-leakage mode.
LLEAK Comparators remain active in low-leakage
mode, but at reduced speed. Set to 0 for
normal operation.
D4
Termination Select. Driver Termination Select
Bit. Set to 1 to force the driver output to the
TMSEL DTV_ voltage when RCV_ = 1 (term mode). Set
to 0 to place the driver into high-impedance
mode when RCV_ = 1 (high-Z). See Table 1.
D3
SC1
D2
SC0
D1
CDIFF
D0
LDDIS
Driver Slew Rate Select. SC1 and SC0 set the
driver slew rate. See Table 2.
Differential Comparator Enable. Set to 1 to
enable the differential comparators and
disable the CH_ window comparators. Set to 0
to enable the CH_ window comparators and
disable the differential comparators. See
Tables 3a and 3b.
Load Disable. Set LDDIS to 1 to disable the
Analog control input THR sets the threshold for the
input logic, allowing operation with CMOS logic as low
as 0.9V. Leaving THR unconnected results in a nominal
threshold of 1.25V from an internal reference, providing
compatibility with 2.5V to 3.3V logic.
Temperature Monitor
The MAX9975 supplies a temperature output signal,
TEMP, that asserts a 3.33V nominal output voltage at a
+70°C (343K) die temperature. The output voltage
changes proportionally with temperature at 10mV/°C.
30
Under normal circumstances, the MAX9975 requires
heat removal through the exposed pad by use of an
external heat sink. The exposed pad is electrically at
VEE potential, and must be either connected to VEE or
isolated.
Power dissipation is highly dependent upon the application. The Electrical Characteristics table indicates
power dissipation under the condition that the source
and sink currents are programmed to 0mA. Maximum
dissipation occurs when the source and sink currents
are both at 35mA, the VDUT_ is at an extreme of the
voltage range, and the diode bridge is fully commutated. Under these conditions, the additional power dissipated (per channel) is:
If DUT_ is sourcing current:
PD = (VDUT_ - VEE) x ISOURCE
If DUT_ is sinking current:
PD = (VCC - VDUT_) x ISINK
DUT_ sources the programmed (low) current when
VDUT_ > VCOM_. The path of the current is from DUT_
through the outside of the diode bridge and the source
(low) current source to VEE. The programmed sink current is greatly reduced by the class AB load architecture.
DUT_ sinks the programmed (high) current when VDUT_
< VCOM_. The path of the current is from VCC through
the sink (high) current source and the outside of the
diode bridge to DUT_. The programmed source current
is greatly reduced by the Class AB architecture.
θJC of the exposed-pad package is very low, approximately 1°C/W to 2°C/W. Die temperature is thus highly
dependent upon the heat removal techniques used in
the application. Maximum total power dissipation
occurs under conditions shown in Table 6.
Table 6. Maximum Power Dissipation
Conditions
PARAMETER
MAX9975AR
VCC
+10.5V
MAX9975AZ
+11V
VEE
-5.25V
-4.75V
ISOURCE = ISINK
35mA
35mA
LOAD
Both Channels
Enabled
Both Channels
Enabled
VDUT_
-1.5V
-1V
VCOM_
+0.5V
+0.5V
______________________________________________________________________________________
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
Power-Supply Considerations
Bypass all VCC and VEE power input pins with 0.01µF
capacitors, and use bulk bypassing of at least 10µF on
each supply.
Selector Guide
ACCURACY
GRADE
PART
HIGH-SPEED DIGITAL
INPUT TERMINATION (Ω)
COMPARATOR
OUTPUT
TERMINATION
RCV_
DATA_
LDEN_
HEAT EXTRACTION
MAX9969ADCCQ
A
None
None
None
None
Top
MAX9969AGCCQ
A
None
100
100
100
Top
HYS1
LDH1
LDL1
COM1
VEE
VEE
GND
GND
VCC
VCC
CL1
NCL1
VCCO1
CH1
NCH1
VEE
GND
VCC
CPHV1
CPLV1
DHV1
DTV1
DLV1
TOP VIEW
CHV1
CLV1
Pin Configuration
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
TEMP
1
75
TDATA1
VEE
2
74
NDATA1
GND
3
73
DATA1
VCC
4
72
N.C.
GND
5
71
NRCV1
N.C.
6
70
RCV1
DUT1
7
69
TLDEN1
N.C.
8
68
NLDEN1
VEE
9
67
LDEN1
GND 10
66
VCC
VCC 11
65
DIN
VEE 12
64
SCLK
GS 13
63
THR
62
CS
MAX9975
VEE 14
VCC 15
61
RST
GND 16
60
VEE
VEE 17
59
LDEN2
N.C. 18
58
NLDEN2
DUT2 19
57
TLDEN2
N.C. 20
56
RCV2
GND 21
55
NRCV2
VCC 22
54
N.C.
GND 23
53
DATA2
VEE 24
52
NDATA2
GND 25
51
TDATA2
HYS2
LDH2
LDL2
COM2
VEE
VEE
GND
GND
VCC
VCC
CL2
NCL2
VCCO2
CH2
NCH2
VEE
GND
VCC
CPHV2
CPLV2
DHV2
DTV2
DLV2
CLV2
CHV2
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
______________________________________________________________________________________
31
MAX9975
Under these extreme conditions, the total power dissipation is 4.3W typical and 4.8W maximum. If the die
temperature cannot be maintained at an acceptable
level under these conditions, use software clamping to
limit the load output currents to lower values and/or
reduce the supply voltages.
MAX9975
Dual, Low-Power, 1200Mbps ATE
Driver/Comparator with 35mA Load
Package Information
For the latest package outline information, go to
www.maxim-ic.com/packages
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
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is a registered trademark of Maxim Integrated Products, Inc.