Maxim MAX964EEE Single/dual/quad, ultra-high-speed, 3v/5v,beyond-the-rails comparator Datasheet

19-1129; Rev 4; 3/99
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,
Beyond-the-Rails Comparators
____________________________Features
The MAX961–MAX964/MAX997/MAX999 are low-power,
ultra-high-speed comparators with internal hysteresis.
These devices are optimized for single +3V or +5V
operation. The input common-mode range extends
100mV Beyond-the-Rails™, and the outputs can sink
or source 4mA to within 0.52V of GND and V CC .
Propagation delay is 4.5ns (5mV overdrive), while supply current is 5mA per comparator.
♦ Ultra-Fast, 4.5ns Propagation Delay
The MAX961/MAX963/MAX964 and MAX997 have a
shutdown mode in which they consume only 270µA
supply current per comparator. The MAX961/MAX963
provide complementary outputs and a latch-enable feature. Latch enable allows the user to hold a valid comparator output. The MAX999 is available in a tiny
SOT23-5 package. The single MAX961/MAX997 and
dual MAX962 are available in space-saving 8-pin µMAX
packages.
________________________Applications
♦ Ideal for +3V and +5V Single-Supply Applications
♦ Beyond-the-Rails Input Voltage Range
♦ Low, 5mA Supply Current (MAX997/MAX999)
♦ 3.5mV Internal Hysteresis for Clean Switching
♦ Output Latch (MAX961/MAX963)
♦ TTL/CMOS-Compatible Outputs
♦ 270µA Shutdown Current per Comparator
(MAX961/MAX963/MAX964/MAX997)
♦ Available in Space-Saving Packages:
5-Pin SOT23 (MAX999)
8-Pin µMAX (MAX961/MAX962/MAX997)
16-Pin QSOP (MAX964)
_______________Ordering Information
Single 3V/5V Systems
Portable/Battery-Powered Systems
PART
Threshold Detectors/Discriminators
GPS Receivers
Line Receivers
Zero-Crossing Detectors
High-Speed Sampling Circuits
______________________Selector Guide
TEMP RANGE
PINPACKAGE
SOT
TOP MARK
MAX961ESA
-40°C to +85°C 8 SO
—
MAX961EUA
MAX962ESA
MAX962EUA
MAX963ESD
MAX964ESE
MAX964EEE
MAX997ESA
MAX997EUA
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
—
—
—
—
—
—
—
—
8 µMAX
8 SO
8 µMAX
14 SO
16 Narrow SO
16 QSOP
8 SO
8 µMAX
Yes
Yes
8 SO/µMAX
MAX962
2
No
No
No
8 SO/µMAX
MAX963
2
Yes
Yes
Yes
14 SO
MAX964
4
No
Yes
No
16 SO/QSOP
MAX997
1
No
Yes
No
8 SO/µMAX
MAX999
1
No
No
No
5 SOT23
PACKAGE
Yes
LATCH
ENABLE
SHUTDOWN
1
NO. OF
COMPARATORS
MAX961
PART
COMPLEMENTARY
OUTPUT
MAX999EUK-T -40°C to +85°C 5 SOT23-5
__________________Pin Configurations
TOP VIEW
Q 1
Beyond-the-Rails is a trademark of Maxim Integrated Products, Inc.
ACAB
GND 2
5
VCC
4
IN-
MAX999
IN+ 3
SOT23-5
Pin Configurations continued 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
MAX961–MAX964/MAX997/MAX999
_________________General Description
MAX961–MAX964/MAX997/MAX999
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,
Beyond-the-Rails Comparators
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VCC to GND................................... -0.3V to +6V
All Other Pins..............................................-0.3V to (VCC + 0.3V)
Duration of Output Short Circuit to GND or VCC .......Continuous
Continuous Power Dissipation (TA = +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C).......571mW/°C
8-Pin SO (derate 5.88mW/°C above +70°C)...........471mW/°C
8-Pin µMAX (derate 4.10mW/°C above +70°C) ......330mW/°C
14-Pin SO (derate 8.33mW/°C above +70°C).........667mW/°C
16-Pin SO (derate 8.70mW/°C above +70°C).........696mW/°C
16-Pin QSOP (derate 8.33mW/°C above +70°C)....667mW/°C
Operating Temperature Range
MAX96_E/MAX99_E.........................................-40°C to +85°C
Storage Temperature Range ............................ -65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
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
(VCC = +2.7V to +5.5V, VCM = 0V, COUT = 5pF, VSHDN = 0V, VLE = 0V, unless otherwise noted.) (Note 1)
PARAMETER
Supply Voltage
Input Common-Mode Voltage
Range
Input-Referred Trip Points
SYMBOL
VCC
CONDITIONS
TA = +25°C
MIN
Input Bias Current
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
5.5
V
VCMR
(Note 2)
-0.1
VCC + 0.1
-0.1
VCC + 0.1
V
VTRIP
VCM = - 0.1V
or 5.1V,
VCC = 5V
(Note 3)
µMAX,
SOT23
±2.0
±3.5
±6.5
All other
packages
±2.0
±3.5
±4.0
mV
3.5
VOS
IB
mV
VCM = - 0.1V
or 5.1V,
VCC = 5V
(Note 4)
µMAX,
SOT23
±0.5
±1.5
±4.5
All other
packages
±0.5
±1.5
±2.0
VIN+ =
VIN- = 0V
or VCC,
VCC = 5V
µMAX,
SOT23
±15
±30
All other
packages
±15
±15
mV
µA
VCC = 5.5V, VIN- = 0V,
IIN+ = 100µA
2.1
V
3
pF
RIND
VCC = 5V
8
kΩ
RINCM
VCC = 5V
130
kΩ
CMRR
VCC = 5V,
VCM = -0.1V
to 5.1V
(Note 5)
PSRR
µMAX,
SOT23
0.1
0.3
1.0
All other
packages
0.1
0.3
0.5
0.05
0.3
0.3
mV/V
VCM = 0V (Note 6)
VOH
ISOURCE = 4mA
Output Low Voltage
VOL
ISINK = 4mA
2
UNITS
2.7
Output High Voltage
Capacitive Slew Current
MAX
5.5
Input Capacitance
Common-Mode Input Impedance
MIN
2.7
Differential Input Clamp Voltage
Differential Input Impedance
TMIN to TMAX
MAX
Inferred by PSRR
Input-Referred Hysteresis
Input Offset Voltage
TYP
VOUT = 1.4V, VCC = 2.7V
VCC - 0.52
VCC - 0.52
0.52
30
60
_______________________________________________________________________________________
mV/V
V
0.52
V
mA
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,
Beyond-the-Rails Comparators
MAX961–MAX964/MAX997/MAX999
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +2.7V to +5.5V, VCM = 0V, COUT = 5pF, VSHDN = 0V, VLE = 0V, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
TA = +25°C
MIN
Output Capacitance
Supply Current
per Comparator
ISHDN
MIN
MAX
tR, tF
Logic Input High
VIH
Logic Input Low
VIL
Logic Input Current
IIL, IIH
Propagation Delay
UNITS
pF
MAX961/MAX963, VCC = 5V
7.2
11
MAX962/MAX964, VCC = 5V
5
8
9
MAX997/MAX999, VCC = 5V
5
6.5
6.5
MAX961/MAX963/MAX964/
MAX997, VCC = 5V
0.27
0.5
0.5
mA
1
20
µA
MAX961/MAX963/MAX964/
MAX997, VOUT = 0.5V and
VCC - 0.5V
Shutdown Output
Leakage Current
Rise/Fall Time
TMIN to TMAX
MAX
4
ICC
Shutdown Supply Current
per Comparator
TYP
VCC = 5V
11
2.3
ns
(VCC / 2)
+ 0.4
(VCC / 2)
+ 0.4
VLOGIC = 0V or VCC
mA
V
(VCC / 2)
- 0.4
(VCC / 2)
- 0.4
V
±15
±30
µA
7
8.5
ns
tPD
5mV overdrive (Note 7)
4.5
Differential Propagation
Delay
tPD
Between any two channels or
outputs (Q/Q)
0.3
Propagation-Delay Skew
tSKEW
Between tPD- and tPD+
0.3
Data-to-Latch Setup Time
tSU
MAX961/MAX963 (Note 8)
5
5
ns
Latch-to-Data Hold Time
tH
MAX961/MAX963 (Note 8)
5
5
ns
Latch Pulse Width
tLPW
MAX961/MAX963 (Note 8)
5
5
ns
Latch Propagation Delay
tLPD
MAX961/MAX963 (Note 8)
10
10
ns
Shutdown Time
tOFF
Delay until output is high-Z
(>10kΩ)
150
ns
Shutdown Disable Time
tON
Delay until output is valid
250
ns
ns
ns
Note 1: The MAX961EUA/MAX962EUA/MAX997EUA/MAX999EUK are 100% production tested at TA = +25°C; all temperature specifications are guaranteed by design.
Note 2: Inferred by CMRR. Either input can be driven to the absolute maximum limit without false output inversion, provided that the other
input is within the input voltage range.
Note 3: The input-referred trip points are the extremities of the differential input voltage required to make the comparator output change
state. The difference between the upper and lower trip points is equal to the width of the input-referred hysteresis zone. (See
Figure 1.)
Note 4: Input offset voltage is defined as the mean of the trip points.
Note 5: CMRR = (VOSL - VOSH) / 5.2V, where VOSL is the offset at VCM = -0.1V and VOSH is the offset at VCM = 5.1V.
Note 6: PSRR = (VOS2.7 - VOS5.5) / 2.8V, where VOS2.7 is the offset voltage at VCC = 2.7V, and VOS5.5 is the offset voltage at
VCC = 5.5V.
Note 7: Propagation delay for these high-speed comparators is guaranteed by design characterization because it cannot be accurately
measured using automatic test equipment. A statistically significant sample of devices is characterized with a 200mV step and
100mV overdrive over the full temperature range. Propagation delay can be guaranteed by this characterization, since DC tests
ensure that all internal bias conditions are correct. For low overdrive conditions, VTRIP is added to the overdrive.
Note 8: Guaranteed by design.
_______________________________________________________________________________________
3
__________________________________________Typical Operating Characteristics
(VCC = +3.0V, CLOAD = 5pF, 5mV of overdrive, TA = +25°C, unless otherwise noted.)
PROPAGATION DELAY
vs. TEMPERATURE
6.0
5.5
5.0
4.5
6.2
tPD+
6.0
tPD-
5.8
5.6
5.4
tPD3.5
6
tPD+
5
4
5.0
10 20 30 40 50 60 70 80 90 100
-40
-20
0
INPUT OVERDRIVE (mV)
40
60
0
85
20
40
120
0.4
TA = +25°C
TA = -40°C
VOL (V)
VOH (V)
tPD-
100
0.5
MAX997toc05
MAX997toc04
TA = +85°C
2.70
80
OUTPUT LOW VOLTAGE
vs. SINK CURRENT
2.80
2.75
60
CAPACITIVE LOAD (pF)
OUTPUT HIGH VOLTAGE
vs. SOURCE CURRENT
6.0
5.5
20
TEMPERATURE (°C)
PROPAGATION DELAY
vs. SUPPLY VOLTAGE
2.65
TA = -40°C
TA = +25°C
TA = +85°C
0.3
0.2
2.60
0.1
2.55
tPD+
0
2.50
5.0
3.0
3.5
4.0
4.5
5.0
5.5
1
6.0
MAX961/MAX963
SUPPLY CURRENT PER COMPARATOR
vs. SUPPLY VOLTAGE
1000
1
10,000
10
TA = +85°C
TA = +25°C
6
TA = +85°C
5
1000
10,000
MAX997/MAX999
SUPPLY CURRENT PER COMPARATOR
vs. SUPPLY VOLTAGE
9
MAX997toc07B
7
SUPPLY CURRENT (mA)
7.5
100
SINK CURRENT (µA)
MAX962/MAX964
SUPPLY CURRENT PER COMPARATOR
vs. SUPPLY VOLTAGE
MAX997toc07A
8.0
6.5
100
SOURCE CURRENT (µA)
SUPPLY VOLTAGE (V)
7.0
10
TA = +25°C
TA = -40°C
MAX9997toc7C
2.5
8
SUPPLY CURRENT (mA)
PROPAGATION DELAY (ns)
tPD-
5.2
tPD+
0
7
MAX997toc06
4.0
6.4
PROPAGATION DELAY (ns)
6.5
8
MAX997toc0202
6.6
PROPAGATION DELAY (ns)
7.0
PROPAGATION DELAY (ns)
6.8
MAX997toc01
7.5
PROPAGATION DELAY
vs. CAPACITIVE LOAD
MAX997toc03
PROPAGATION DELAY
vs. INPUT OVERDRIVE
SUPPLY CURRENT (mA)
MAX961–MAX964/MAX997/MAX999
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,
Beyond-the-Rails Comparators
7
6
TA = +25°C
TA = +85°C
5
4
TA = -40°C
4
TA = -40°C
6.0
2
3
4
SUPPLY VOLTAGE (V)
4
3
3
5
6
2
3
4
SUPPLY VOLTAGE (V)
5
6
2
3
4
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________
5
6
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,
Beyond-the-Rails Comparators
MAX961/MAX963/MAX964/MAX997
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
VOLTAGE TRIP POINT/INPUT OFFSET
VOLTAGE vs. TEMPERATURE
160
1
VOS
0
-1
-2
20
60
40
VOS
-1
VTRIP-
-20
0
20
40
85
60
2
3
4
5
6
SUPPLY VOLTAGE (V)
INPUT BIAS CURRENT (IB+, IB-)
vs. COMMON-MODE VOLTAGE
INPUT BIAS CURRENT/INPUT OFFSET
CURRENT vs. TEMPERATURE
SHORT-CIRCUIT OUTPUT CURRENT
vs. TEMPERATURE
TA = +25°C
2
0
TA = -40°C
-4
-6
2.5
2.0
1.5
1.0
0.5
IOS
0
1
2
3
4
5
6
100
OUTPUT SHORTED
TO GND (SOURCING)
80
60
40
0
-40
-20
VCM (V)
0
20
40
60
-40
80
-20
0
20
40
60
80
TEMPERATURE (°C)
TEMPERATURE (°C)
50MHz RESPONSE
MAX997toc14
0
OUTPUT SHORTED
TO VCC (SINKING)
120
20
-0.5
-8
MAX997toc13
IB+
3.0
140
MAX997toc12
IB3.5
SHORT-CIRCUIT CURRENT (mA)
4
4.0
INPUT BIAS/OFFSET CURRENT (µA)
VCC = 5.0V
VIN = VOS
NEGATIVE
VALUES
REPRESENT
CURRENT
FLOWING INTO
THE DEVICE
MAX997toc11
TEMPERATURE (°C)
TA = +85°C
-1
0
TEMPERATURE (°C)
6
IB+, IB- (µA)
-40
80
8
-2
1
-4
-3
60
0
VTRIP+
-3
VTRIP-20
2
-2
VCC = 2.7V
-40
MAX997toc10
3
TRIP POINT / VOS (mV)
TRIP POINT / VOS (mV)
210
110
VTRIP+
2
4
MAX997toc09
VCC = 5.0V
260
3
MAX997toc08
SHUTDOWN SUPPLY CURRENT (µA)
310
VOLTAGE TRIP POINT/INPUT OFFSET
VOLTAGE vs. SUPPLY VOLTAGE
VIN = 100mVp-p
INPUT
50mV/div
VOS
OUTPUT
1V/div
GND
5ns/div
_______________________________________________________________________________________
5
MAX961–MAX964/MAX997/MAX999
____________________________Typical Operating Characteristics (continued)
(VCC = +3.0V, CLOAD = 5pF, 5mV of overdrive, TA = +25°C, unless otherwise noted.)
MAX961–MAX964/MAX997/MAX999
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,
Beyond-the-Rails Comparators
____________________________Typical Operating Characteristics (continued)
(VCC = +3.0V, CLOAD = 5pF, 5mV of overdrive, TA = +25°C, unless otherwise noted.)
PROPAGATION DELAY (tPD+)
PROPAGATION DELAY (tPD-)
MAX997toc15
MAX997toc16
GND
INPUT
50mV/div
INPUT
50mV/div
GND
OUTPUT
1V/div
OUTPUT
1V/div
GND
GND
5ns/div
5ns/div
______________________________________________________________Pin Description
PIN
6
NAME
FUNCTION
MAX997
MAX999
MAX961
MAX962
MAX963
MAX964
1, 5
—
—
—
—
—
N.C.
2
4
2
2
1
1
IN-, INA-
3
3
1
1
2
2
—
—
4
—
3, 5
—
LE, LEA,
LEB
4
2
5
5
4, 11
12
GND
Ground
—
—
—
—
—
16
N.C.
No Connect. Connect to GND to prevent parasitic feedback.
—
—
—
4
6
3
INB-
Comparator B Inverting Input
—
—
—
3
7
4
INB+
Comparator B Noninverting Input
—
—
—
—
—
—
—
5
INC-
Comparator C Inverting Input
—
6
INC+
Comparator C Noninverting Input
—
—
—
—
—
—
—
7
IND-
Comparator D Inverting Input
—
—
—
—
—
8
IND+
Comparator D Noninverting Input
8
—
3
—
8
9
SHDN
Shutdown Input. The device shuts down when
SHDN is high.
—
—
—
6
9
14
QB
Comparator B Output
—
—
—
11
QC
Comparator C Output
—
—
—
10
QD
Comparator D Output
—
—
—
—
—
—
—
—
10
—
QB
Comparator B Complementary Output
7
5
8
8
12
13
VCC
Positive Supply Input (VCC to GND must be
≤5.5V)
6
1
6
7
13
15
Q, QA
Comparator A TTL Output
—
—
7
—
14
—
Q, QA
Comparator A Complementary Output
No Connection
Comparator A Inverting Input
IN+, INA+ Comparator A Noninverting Input
Latch-Enable Input. The output latches when LE_
is high. The latch is transparent when LE_ is low.
_______________________________________________________________________________________
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,
Beyond-the-Rails Comparators
The MAX961–MAX964/MAX997/MAX999 single-supply
comparators feature internal hysteresis, ultra-highspeed operation, and low power consumption. Their
outputs are guaranteed to pull within 0.52V of either rail
without external pull-up or pull-down circuitry. Beyondthe-Rails™ input voltage range and low-voltage, singlesupply operation make these devices ideal for portable
equipment. These comparators all interface directly to
CMOS logic.
Timing
Most high-speed comparators oscillate in the linear
region because of noise or undesirable parasitic feedback. This can occur when the voltage on one input is
close to or equal to the voltage on the other input.
These devices have a small amount of internal hysteresis to counter parasitic effects and noise.
The added hysteresis of the MAX961–MAX964/MAX997/
MAX999 creates two trip points: one for the rising input
voltage and one for the falling input voltage (Figure 1).
The difference between the trip points is the hysteresis.
When the comparator’s input voltages are equal, the
hysteresis effectively causes one comparator input
voltage to move quickly past the other, thus taking the
input out of the region where oscillation occurs. Standard
comparators require hysteresis to be added with external
resistors. The fixed internal hysteresis eliminates these
resistors.
The MAX961/MAX963 include internal latches that allow
storage of comparison results. LE has a high input
impedance. If LE is low, the latch is transparent (i.e.,
the comparator operates as though the latch is not present). The comparator’s output state is stored when LE
is pulled high. All timing constraints must be met when
using the latch function (Figure 2).
Input Stage Circuitry
The MAX961–MAX964/MAX997/MAX999 include internal protection circuitry that prevents damage to the precision input stage from large differential input voltages.
This protection circuitry consists of two groups of three
front-to-back diodes between IN+ and IN-, as well as
two 200Ω resistors (Figure 3). The diodes limit the differential voltage applied to the comparator’s internal
circuitry to no more than 3VF, where VF is the diode’s
forward-voltage drop (about 0.7V at +25°C).
VTRIP+
VIN+
VHYST
VOS =
VTRIP+ + VTRIP2
VIN- = 0V
VTRIP-
VOH
Q
VOL
Q
VOH
VOL
Figure 1. Input and Output Waveforms, Noninverting Input Varied
_______________________________________________________________________________________
7
MAX961–MAX964/MAX997/MAX999
_______________Detailed Description
MAX961–MAX964/MAX997/MAX999
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,
Beyond-the-Rails Comparators
tSU
tH
DIFFERENTIAL
INPUT
VOLTAGE
VOS
tLPW
VCC
VCC
2
LE
0V
tPD
tLPD
VOH
VCC
2
Q
VOL
VCC
2
Q
tSKEW
tSKEW
Figure 2. MAX961/MAX963 Timing Diagram
MAX961-MAX964
MAX997
MAX999
200Ω
IN+
TO INTERNAL
CIRCUITRY
IN-
TO INTERNAL
CIRCUITRY
200Ω
For a large differential input voltage (exceeding 3VF),
this protection circuitry increases the input bias current
at IN+ (source) and IN- (sink).
(IN+ - IN-) - 3VF
Input current = ————————
2 x 200
Input currents with large differential input voltages
should not be confused with input bias currents (IB).
As long as the differential input voltage is less than
3VF, this input current is less than 2IB.
The input circuitry allows the MAX961–MAX964/
MAX997/MAX999’s input common-mode range to
extend 100mV beyond both power-supply rails. The
output remains in the correct logic state if one or both
inputs are within the common-mode range. Taking
either input outside the common-mode range causes
the input to saturate and the propagation delay to
increase.
Figure 3. Input Stage Circuitry
8
_______________________________________________________________________________________
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,
Beyond-the-Rails Comparators
ISOURCE
MAX961-MAX964
MAX997
MAX999
Q, Q
ISINK
GND
Figure 5. MAX961 PC Board Layout
Figure 4. Output Stage Circuitry
Output Stage Circuitry
The MAX961–MAX964/MAX997/MAX999 contain a current-driven output stage, as shown in Figure 4. During an
output transition, ISOURCE or ISINK is pushed or pulled to
the output pin. The output source or sink current is high
during the transition, creating a rapid slew rate. Once the
output voltage reaches VOH or VOL, the source or sink
current decreases to a small value, capable of maintaining the VOH or VOL in static condition. This decrease in
current conserves power after an output transition has
occurred.
One consequence of a current-driven output stage is a
linear dependence between the slew rate and the load
capacitance. A heavy capacitive load slows down the
voltage output transition.
Shutdown Mode
When SHDN is high, the MAX961/MAX963/MAX964/
MAX997 shut down. When shut down, the supply current drops to 270µA per comparator, and the outputs
become high impedance. SHDN has a high input
impedance. Connect SHDN to GND for normal operation. Exit shutdown with LE low; otherwise, the output is
indeterminate.
__________Applications Information
Circuit Layout and Bypassing
The MAX961–MAX964/MAX997/MAX999’s high bandwidth requires a high-speed layout. Follow these layout
guidelines:
1) Use a printed circuit board with a good, unbroken,
low-inductance ground plane.
2) Place a decoupling capacitor (a 0.1µF ceramic surface-mount capacitor is a good choice) as close to
VCC as possible.
3) On the inputs and outputs, keep lead lengths short
to avoid unwanted parasitic feedback around the
comparators. Keep inputs away from outputs. Keep
impedance between the inputs low.
4) Solder the device directly to the printed circuit board
rather than using a socket.
5) Refer to Figure 5 for a recommended circuit layout.
6) For slow-moving input signals, take care to prevent
parasitic feedback. A small capacitor (1000pF or
less) placed between the inputs can help eliminate
oscillations in the transition region. This capacitor
causes negligible degradation to t PD when the
source impedance is low.
_______________________________________________________________________________________
9
MAX961–MAX964/MAX997/MAX999
VCC
MAX961–MAX964/MAX997/MAX999
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,
Beyond-the-Rails Comparators
___________________________________________________________Pin Configurations
TOP VIEW
8
VCC
INA+ 1
7
Q
INA- 2
SHDN 3
6
Q
LE 4
5
GND
IN+ 1
IN- 2
MAX961
8
VCC
7
QA
INB+ 3
6
QB
INB- 4
5
GND
MAX962
SO/µMAX
SO/µMAX
INA- 1
14 QA
INA- 1
16 N.C.
INA+
2
13 QA
INA+ 2
15 QA
LEA
3
12 VCC
INB- 3
14 QB
11 GND
INB+ 4
LEB 5
10 QB
INC- 5
12 GND
INB- 6
9
QB
INC+ 6
11 QC
INB+ 7
8
SHDN
IND- 7
10 QD
IND+ 8
9
GND 4
MAX963
MAX964
13 VCC
8
SHDN
7
VCC
IN+ 3
6
Q
GND 4
5
N.C.
N.C. 1
IN- 2
MAX997
SO/µMAX
SHDN
SO
SO/QSOP
___________________Chip Information
MAX961/MAX962 TRANSISTOR COUNT: 286
MAX963/MAX964 TRANSISTOR COUNT: 607
MAX997/MAX999 TRANSISTOR COUNT: 142
10
______________________________________________________________________________________
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,
Beyond-the-Rails Comparators
E
ÿ 0.50±0.1
8
INCHES
DIM
A
A1
A2
b
H
c
D
e
E
H
0.6±0.1
1
L
1
α
0.6±0.1
S
BOTTOM VIEW
D
MIN
0.002
0.030
MAX
0.043
0.006
0.037
0.014
0.010
0.007
0.005
0.120
0.116
0.0256 BSC
0.120
0.116
0.198
0.188
0.026
0.016
6∞
0∞
0.0207 BSC
8LUMAXD.EPS
4X S
8
MILLIMETERS
MAX
MIN
0.05
0.75
1.10
0.15
0.95
0.25
0.36
0.13
0.18
2.95
3.05
0.65 BSC
2.95
3.05
4.78
5.03
0.41
0.66
0∞
6∞
0.5250 BSC
TOP VIEW
A1
A2
e
FRONT VIEW
A
c
b
α
L
SIDE VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, 8L uMAX/uSOP
APPROVAL
DOCUMENT CONTROL NO.
REV.
J
1
1
QSOP.EPS
21-0036
______________________________________________________________________________________
11
MAX961–MAX964/MAX997/MAX999
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages.)
Package Information (continued)
DIM
A
A1
B
C
e
E
H
L
N
E
H
INCHES
MILLIMETERS
MAX
MIN
0.069
0.053
0.010
0.004
0.014
0.019
0.007
0.010
0.050 BSC
0.150
0.157
0.228
0.244
0.016
0.050
MAX
MIN
1.35
1.75
0.10
0.25
0.35
0.49
0.19
0.25
1.27 BSC
3.80
4.00
5.80
6.20
0.40
SOICN .EPS
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages.)
1.27
VARIATIONS:
1
INCHES
TOP VIEW
DIM
D
D
D
MAX
0.197
0.344
0.394
MIN
0.189
0.337
0.386
MILLIMETERS
MIN
4.80
8.55
9.80
MAX
5.00
8.75
10.00
N MS012
8
AA
14
AB
16
AC
D
A
B
e
C
0∞-8∞
A1
L
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, .150" SOIC
APPROVAL
DOCUMENT CONTROL NO.
21-0041
REV.
B
1
1
SOT-23 5L .EPS
MAX961–MAX964/MAX997/MAX999
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,
Beyond-the-Rails Comparators
PACKAGE OUTLINE, SOT-23, 5L
21-0057
E
1
1
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.
12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 1999 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.