MAXIM MAX4760EWX+T

19-3037; Rev 3; 7/07
High-Bandwidth, Quad DPDT Switches
The MAX4760/MAX4761 (DPDT) analog switches operate
from a single +1.8V to +5.5V supply. These switches
feature a low 25pF capacitance for high-speed data
switching applications.
The MAX4760 is a quad double-pole/double-throw
(DPDT) switch and the MAX4761 is an octal singlepole/double-throw (SPDT) switch. They have eight 3.5Ω
on-resistance, low-capacitance switches to route audio
and data signals. The MAX4760 has 4 logic inputs to
control the switches in pairs. The MAX4761 has one
logic control input and an enable input (EN) to disable
the switches.
The MAX4760/MAX4761 are available in a small 36-pin
(6mm x 6mm) thin QFN and 36-bump (3mm x 3mm)
chip-scale package (UCSP™).
Features
♦ USB 1.1 and USB 2.0 (Full Speed) SignalSwitching Compliant
♦ Data and Audio Signal Routing
♦ Low-Capacitance (25pF) Data Switches
♦ Less than 0.2ns Skew
♦ -3dB Bandwidth: 325MHz
♦ 0.2Ω Channel-to-Channel Matching
♦ 0.8Ω On-Resistance Flatness
♦ Rail-to-Rail Signal Handling
♦ 0.03% THD
♦ +1.8V to +5.5V Supply Range
♦ Tiny 36-Bump UCSP (3mm x 3mm)
♦ 36-Pin Thin QFN (6mm x 6mm)
Ordering Information
Applications
USB Signal Switching
Audio-Signal Routing
Cellular Phones
PDAs/Hand-Held Devices
Notebook Computers
PART
TEMP RANGE
MAX4760EWX+T -40°C to +85°C
PINPACKAGE
PKG
CODE
36 UCSP
AS27Y-2Z
36 Thin QFN
-40°C to +85°C
(6mm x 6mm)
MAX4760ETX
AS27Y-2Z
+Denotes a lead-free package.
Ordering Information continued at end of data sheet.
Functional Diagrams
INA
NO1
INA
NO1
DATA 1
DATA 1
COM1
NC1
NO2
COM1
NC1
NO2
DATA 2
DATA 2
COM2
NC2
INB
NO3
COM2
NC2
NO3
DATA 3
DATA 3
COM3
NC3
NO4
COM3
NC3
NO4
DATA 4
DATA 4
COM4
NC4
INC
NO5
COM4
NC4
NO5
DATA 5
DATA 5
COM5
NC5
NO6
COM5
NC5
NO6
DATA 6
DATA 6
COM6
NC6
IND
NO7
COM6
NC6
NO7
DATA 7
DATA 7
COM7
COM7
NC7
NO8
NC7
NO8
DATA 8
DATA 8
COM8
COM8
NC8
NC8
MAX4760
EN
MAX4761
Pin Configurations/Functional Diagrams/Truth Table continued at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
MAX4760/MAX4761
General Description
MAX4760/MAX4761
High-Bandwidth, Quad DPDT Switches
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
V+, IN_, EN...............................................................-0.3V to +6V
COM_, NO_, NC_ (Note 1) ...........................-0.3V to (V+ + 0.3V)
Continuous Current
NO_, NC_, COM_ .......................................................±100mA
Peak Current
(pulsed at 1ms, 10% duty cycle)................................±200mA
(pulsed at 1ms, 50% duty cycle)............................... ±300mA
Continuous Power Dissipation (TA = +70°C)
36-Bump UCSP (derate 15.3mW/°C above +70°C).... 1221mW
36-Pin Thin QFN (derate 26.3mW/°C above +70°C)... 2105mW
ESD per Method 3015.7.......................................................±2kV
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°C
Bump Temperature (soldering)
Infrared (15s) ...............................................................+220°C
Vapor Phase (60s) .......................................................+215°C
Note 1: Signals on NO_, NC_, COM_ exceeding V+ or GND are clamped by internal diodes. Limit forward-diode current to maximum
current rating.
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
(V+ = +2.7V to +5.25V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = 3V, TA = +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
TA
MIN
TMIN to TMAX
0
TYP
MAX
UNITS
V+
V
ANALOG SWITCH
Analog Signal Range
VCOM_,
VNO_,
V
+25°C
RON
V+ = 2.7V, ICOM_ = 10mA,
VNC_ or VNO_ = 0V or V+
ΔRON
V+ = 2.7V, ICOM_ = 10mA,
VNO_ or VNC_ = 1.5V
TMIN to TMAX
On-Resistance Flatness
(Note 6)
RFLAT(ON)
V+ = 2.7V, ICOM_=10mA,
VNC_ or VNO_ = 0V or V+
TMIN to TMAX
NO_, NC_ Off-Leakage
Current
INO_(OFF),
INC_(OFF)
V+ = 3.6V;
VCOM_ = 3.3V, 0.3V;
VNO_ or VNC_ = 0.3V, 3.3V
On-Resistance (Note 4)
On-Resistance Match
Between Channels
(Notes 4, 5)
COM_ Off-Leakage Current
COM_ On-Leakage Current
ICOM_(ON)
2.0
TMIN to TMAX
3.5
4
+25°C
0.2
0.4
0.55
+25°C
0.8
1.5
1.8
+25°C
-5
+5
TMIN to TMAX
-25
+25
Ω
Ω
Ω
nA
V+ = 3.6V (MAX4761); VCOM_ = 3.3V,
0.3V; VNO_ or VNC_ = 0.3V, 3.3V
+25°C
-5
0.01
+5
TMIN to TMAX
-25
V+ = 3.6V; VCOM_ = 3.3V, 0.3V;
VNO_ or VNC_ = 3.3V, 0.3V or floating
+25°C
-5
+5
TMIN to TMAX
-25
+25
+25
nA
nA
DYNAMIC
+25°C
Turn-On Time
tON
VNO_ or VNC_ = 1.5V;
RL = 50Ω; CL = 35pF, Figure 2
TMIN to TMAX
Turn-Off Time
tOFF
V+ = 2.7V, VNO_ or VNC_ = 1.5V;
RL = 50Ω; CL = 35pF, Figure 2
TMIN to TMAX
2
+25°C
45
140
150
25
_______________________________________________________________________________________
50
60
ns
ns
High-Bandwidth, Quad DPDT Switches
(V+ = +2.7V to +5.25V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = 3V, TA = +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
Break-Before-Make (Note 7)
tBBM
Skew (Note 7)
tSKEW
CONDITIONS
V+ = 2.7V, VNO_ or VNC_ = 1.5V;
RL = 50Ω, CL = 35pF, Figure 3
TA
MIN
+25°C
TMIN to TMAX
TYP
MAX
15
UNITS
ns
2
RS = 39Ω, CL = 50pF, Figure 4
+25°C
0.2
VGEN = 0V, RGEN = 0,
CL = 1.0nF, Figure 5
+25°C
15
pC
BW
Signal = 0dBm, CL = 5pF, RL = 50Ω
+25°C
320
MHz
Off-Isolation (Note 8)
VISO
CL = 5pF, RL = 50Ω, VCOM_ = 1VP-P,
f = 100kHz, Figure 6
+25°C
100
dB
Crosstalk (Note 9)
VCT
CL = 5pF, RL = 50Ω, VCOM_ = 1VP-P,
f = 100kHz, Figure 6
+25°C
95
dB
Total Harmonic Distortion
THD
f = 20Hz to 20kHz, 1VP-P, RL = 600Ω
+25°C
0.03
%
Charge Injection
Q
On-Channel -3dB Bandwidth
0.5
ns
NO_, NC_ Off-Capacitance
CNO_(OFF), VNO_, VNC_ = GND, f = 1MHz,
CNC_(OFF) Figure 7
+25°C
25
pF
COM_ On-Capacitance
CCOM(ON)
VNO_, VNC_ = GND, f = 1MHz,
Figure 7
+25°C
54
pF
COM_ Off-Capacitance
CCOM(OFF)
VCOM_ = GND, f = 1MHz (MAX4761),
Figure 7
+25°C
25
pF
DIGITAL I/O (IN_, EN)
Input-Logic High
VIH
Input-Logic Low
VIL
Input Leakage Current
IIN
V+ = 2.7V to 3.6V
TMIN to TMAX
1.4
V+ = 3.6V to 5.25V
TMIN to TMAX
2.0
V+ = 2.7V to 3.6V
TMIN to TMAX
0.5
V+ = 3.6V to 5.25V
TMIN to TMAX
0.6
VIN = 0 or V+
TMIN to TMAX
1
µA
5.5
V
V
V
POWER SUPPLY
Power-Supply Range
Positive Supply Current
V+
I+
TMIN to TMAX
V+ = 4.3V, VIN_ = 0V or V+
+25°C
TMIN to TMAX
1.8
0.01
1.0
µA
Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 3: UCSP packages are 100% tested at +25°C and limits across the full temperature range are guaranteed by correlation and
design. Thin QFN packages are 100% tested at +85°C and limits across the full temperature range are guaranteed by correlation and design.
Note 4: RON and ΔRON matching specifications are guaranteed by design.
Note 5: ΔRON = RON(MAX) - RON(MIN).
Note 6: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal ranges.
Note 7: Guaranteed by design, not production tested.
Note 8: Off-isolation = 20log10 [VCOM_ / (VNO_ or VNC_)], VCOM_ = output, VNO_ or VNC_ = input to off switch.
Note 9: Between any two switches.
_______________________________________________________________________________________
3
MAX4760/MAX4761
ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics
(V+ = 3V, TA = +25°C, unless otherwise noted.)
V+ = 1.8V
V+ = 3V
4
V+ = 2V
5
TA = +85°C
3
TA = +25°C
2
V+ = 2.3V
V+ = 5V
4
RON (Ω)
RON (Ω)
RON (Ω)
7
6
5
MAX4760 toc02
9
8
5
MAX4760 toc01
10
ON-RESISTANCE
vs. VCOM AND TEMPERATURE
MAX4760 toc03
ON-RESISTANCE
vs. VCOM AND TEMPERATURE
ON-RESISTANCE vs. VCOM
3
TA = +85°C
TA = +25°C
2
4
V+ = 2.7V
3
V+ = 5V
TA = -40°C
1
1
2
TA = -40°C
V+ = 3V
1
0
1.0
1.5
2.0
2.5
3.0
0
VCOM (V)
NO/NC OFF-LEAKAGE CURRENT
vs. TEMPERATURE
COM ON-LEAKAGE CURRENT
vs. TEMPERATURE
COM OFF-LEAKAGE CURRENT
vs. TEMPERATURE
0.1
V+ = 3V
0.01
0.001
1
V+ = 5V
0.1
V+ = 3V
0.01
10
V+ = 3V/5V
60
85
-40
0.1
V+ = 3V
10
35
60
-40
85
-15
SUPPLY CURRENT vs. SUPPLY VOLTAGE
CHARGE INJECTION vs. VCOM
MAX4760 toc07
4.0
CL = 1nF
3.5
SUPPLY CURRENT (nA)
50
40
V+ = 5V
V+ = 3V
20
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
60
30
V+ = 5V
SUPPLY CURRENT vs. TEMPERATURE
1000
3.0
2.5
2.0
1.5
MAX4760 toc09
TEMPERATURE (°C)
-15
SUPPLY CURRENT (nA)
35
MAX4760 toc08
10
1
0.01
0.001
-15
MAX4760 toc06
V+ = 3V/5V
COM OFF-LEAKAGE CURRENT (nA)
V+ = 5V
10
MAX4760 toc05
MAX4760 toc04
1
-40
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VCOM (V)
V+ = 3V/5V
NO/NC OFF-LEAKAGE CURRENT (nA)
0.5
VCOM (V)
10
V+ = 5V
10
V+ = 3V
0.1
1.0
10
0.5
0
0
0
1
2
3
VCOM (V)
4
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
COM ON-LEAKAGE CURRENT (nA)
0
CHARGE INJECTION (pC)
MAX4760/MAX4761
High-Bandwidth, Quad DPDT Switches
4
5
0.001
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
SUPPLY VOLTAGE (V)
-40
-15
10
35
TEMPERATURE (°C)
_______________________________________________________________________________________
60
85
High-Bandwidth, Quad DPDT Switches
70
tON
60
tON, V+ = 3V
1.2
VIH
VIL
0.8
50
50
tON/tOFF (ns)
tON/tOFF (ns)
60
40
30
tOFF
20
0.4
0
2.0
2.5
3.0
3.5
4.0
4.5
5.0
tOFF, V+ = 3V
10
10
0
0
5.5
tOFF, V+ = 5V
1.5
2.0
2.5
SUPPLY CURRENT (V)
3.5
4.0
4.5
5.0
5.5
-40
SKEW vs. TEMPERATURE
INPUT RISE/FALL TIME = 15ns
CL = 50pF, FIGURE 3
V+ = 4.2V
500
85
0
ON-LOSS (dB)
SKEW (ps)
60
ON-LOSS
-40
CROSSTALK
-60
-80
OFF-ISOLATION
-100
100
100
-120
0
0
2.0
2.5
3.0
3.5
4.0
4.5
5.0
-40
5.5
-15
10
35
60
85
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
-140
0.0001
0.01
1
100
FREQUENCY (MHz)
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
1
MAX4760 toc16
1.5
THD (%)
SKEW (ps)
300
200
200
35
20
-20
300
10
FREQUENCY RESPONSE
400
400
-15
TEMPERATURE (°C)
600
MAX4760 toc13
INPUT RISE/FALL TIME = 15ns
CL = 50pF, FIGURE 3
500
3.0
SUPPLY VOLTAGE (V)
SKEW vs. SUPPLY VOLTAGE
600
tON, V+ = 5V
30
20
MAX4760 toc14
1.5
40
MAX4760 toc15
1.6
70
MAX4760 toc11
80
MAX4760 toc10
2.0
LOGIC THRESHOLD (V)
TURN-ON/OFF TIMES
vs. TEMPERATURE
TURN-ON/OFF TIME
vs. SUPPLY VOLTAGE
MAX4760 toc12
LOGIC THRESHOLD
vs. SUPPLY VOLTAGE
RL = 600Ω
0.1
0.01
10
100
1k
10k
100k
FREQUENCY (Hz)
_______________________________________________________________________________________
5
MAX4760/MAX4761
Typical Operating Characteristics (continued)
(V+ = 3V, TA = +25°C, unless otherwise noted.)
High-Bandwidth, Quad DPDT Switches
MAX4760/MAX4761
Pin Description
PIN
MAX4760
6
MAX4761
NAME
FUNCTION
THIN
QFN
UCSP
THIN
QFN
UCSP
1
A1
1
A1
NC1
2
B2
2
B2
COM2
3
A2
3
A2
NC2
Analog Switch 2, Normally Closed Terminal 2
4
A3
4
A3
INA
Logic Control Digital Input for the MAX4760 Switch 1 and Switch 2.
Digital control input for all MAX4761 switches.
5
C3, D4
5
C3, D4
V+
Positive Supply Voltage
6
A4
—
—
INB
Logic Control Digital Input for Switches 3 and 4
7
A5
7
A5
NC3
Analog Switch 3, Normally Closed Terminal 3
8
B5
8
B5
COM3
9
A6
9
A6
NC4
10
B6
10
B6
COM4
11, 14,
17, 29,
32, 35
—
6, 11, 14,
17, 24,
29, 32, 35
A4, F3
N.C.
No Connection. Not internally connected.
12
C5
12
C5
NO3
Analog Switch 3, Normally Open Terminal 3
13
C6
13
C6
NO4
Analog Switch 4, Normally Open Terminal 4
15
D6
15
D6
NO8
Analog Switch 8, Normally Open Terminal 8
16
D5
16
D5
NO7
Analog Switch 7, Normally Open Terminal 7
18
E6
18
E6
COM8
19
F6
19
F6
NC8
20
E5
20
E5
COM7
21
F5
21
F5
NC7
Analog Switch 7, Normally Closed Terminal 7
22
F4
—
—
IND
Logic Control Digital Input for Switches 7 and 8
23
C4, D3
23
C4, D3
GND
Ground
24
F3
—
—
INC
Logic Control Digital Input for Switches 5 and 6
25
F2
25
F2
NC6
Analog Switch 6, Normally Closed Terminal 2
26
E2
26
E2
COM6
27
F1
27
F1
NC5
28
E1
28
E1
COM5
30
D2
30
D2
NO6
Analog Switch 6, Normally Open Terminal 6
31
D1
31
D1
NO5
Analog Switch 5, Normally Open Terminal 5
33
C1
33
C1
NO1
Analog Switch 1, Normally Open Terminal 1
34
C2
34
C2
NO2
Analog Switch 2, Normally Open Terminal 1
36
B1
36
B1
COM1
—
—
22
F4
EN
Output Enable, Active Low
EP
—
EP
—
EP
Exposed Pad, Connect to GND.
Analog Switch 1, Normally Closed Terminal 1
Analog Switch 2, Common Terminal 2
Analog Switch 3, Common Terminal 2
Analog Switch 4, Normally Closed Terminal 4
Analog Switch 4, Common Terminal 4
Analog Switch 8, Common Terminal 8
Analog Switch 8, Normally Closed Terminal 8
Analog Switch 7, Common Terminal 7
Analog Switch 6, Common Terminal 6
Analog Switch 5, Normally Closed Terminal 5
Analog Switch 5, Common Terminal 5
Analog Switch 1, Common Terminal 1
_______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
The MAX4760 quad double-pole/double-throw (DPDT)
and the MAX4761 octal single-pole/double-throw
(SPDT) analog switches operate from a single +1.8V to
+5.5V supply. These devices are fully specified for +3V
applications.
The MAX4760/MAX4761 have a guaranteed 3.5Ω (max)
on-resistance to switch data or audio signals. The low
25pF capacitance and 0.2ns change in skew makes
them ideal for data switching applications. The MAX4760
has 4 logic inputs to control two switches in pairs and the
MAX4761 has one logic control input and an enable input
(EN) to disable the switches.
Applications Information
Digital Control Inputs
The MAX4760/MAX4761 logic inputs accept up to
+5.5V regardless of the supply voltage. For example,
with a +3.3V supply, IN_ can be driven low to GND and
high to +5.5V, which allows mixed logic levels in a system. Driving the control logic inputs rail-to-rail also minimizes power consumption. For a +3V supply voltage,
the logic thresholds are 0.5V (low) and 1.4V (high).
For the MAX4761, drive EN low to enable. When EN is
high, COM_ is high impedance.
Analog Signal Levels
Analog signal inputs over the full voltage range (0V to V+)
are passed through the switch with minimal change in onresistance (see the Typical Operating Characteristics).
The switches are bidirectional so NO_, NC_, and COM_
can be either inputs or outputs.
Power-Supply Bypassing
Power-supply bypassing improves noise margin and
prevents switching noise from propagating from the V+
supply to other components. A 0.1µF capacitor connected from V+ to GND is adequate for most applications.
POSITIVE SUPPLY
V+
D1
MAX4760
MAX4761
NO
COM
GND
Figure 1. Overvoltage Protection Using an External Blocking
Diode
Power-Supply Sequencing
CMOS devices require proper power-supply sequencing. Always apply V+ before the analog signals, especially if the input signal is not current limited. If
sequencing is not possible, and the input signal is not
current limited to less than 20mA, add a small-signal
diode (Figure 1). Adding the diode reduces the analog
range to a diode drop (0.7V) below V+ and increases
the on-resistance slightly. The maximum supply voltage
must not exceed +6V at any time.
UCSP Applications Information
For the latest application details on UCSP construction,
dimensions, tape carrier information, printed circuit
board techniques, bump-pad layout, and recommended reflow temperature profile, as well as the latest information on reliability testing results, go to the Maxim
website at www.maxim-ic.com/ucsp for the Application
Note, “UCSP—A Wafer-Level Chip-Scale Package.”
_______________________________________________________________________________________
7
MAX4760/MAX4761
Detailed Description
High-Bandwidth, Quad DPDT Switches
MAX4760/MAX4761
Timing Circuits/Timing Diagrams
MAX4760
MAX4761
V+
VN_
LOGIC
INPUT
V+
COM_
NO_
OR NC_
50%
0V
VOUT
RL
t OFF
CL
IN_
VOUT
GND
LOGIC
INPUT
SWITCH
OUTPUT
(
0.9 x V0UT
0.9 x VOUT
0V
t ON
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
RL
RL + RON
VOUT = VN_
t r < 5ns
t f < 5ns
50%
V+
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
)
Figure 2. Switching Time
V+
MAX4760
MAX4761
LOGIC
INPUT
V+
VN_
50%
0V
NC_
VOUT
COM_
NO_
RL
IN_
LOGIC
INPUT
V+
CL
GND
0.9 x VOUT
VOUT
tBBM
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 3. Break-Before-Make Interval
8
_______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
tri
90%
50%
A
TxD+
B
10%
INPUT A
tskew_i
CL
Rs
INPUT A-
90%
50%
10%
tfi
tro
A-
TxD-
B-
10%
OUTPUT B
90%
50%
tskew_o
CL
Rs
OUTPUT B-
Rs = 39Ω
CL = 50pF
90%
50%
10%
tfo
|tro - tri| DELAY DUE TO SWITCH FOR RISING INPUT AND RISING OUTPUT SIGNALS.
|tfo - tfi|
DELAY DUE TO SWITCH FOR FALLING INPUT AND FALLING OUTPUT SIGNALS.
|tskew_o| CHANGE IN SKEW THROUGH THE SWITCH FOR OUTPUT SIGNALS.
|tskew_i| CHANGE IN SKEW THROUGH THE SWITCH FOR INPUT SIGNALS.
Figure 4. Input/Output Skew Timing Diagram
V+
MAX4760
MAX4761
ΔVOUT
V+
RGEN
VOUT
COM_
NC_
OR NO_
VOUT
IN
OFF
CL
V GEN
GND
ON
OFF
IN_
VIL TO VIH
IN
OFF
ON
OFF
Q = (ΔV OUT )(C L )
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
Figure 5. Charge Injection
_______________________________________________________________________________________
9
MAX4760/MAX4761
Timing Circuits/Timing Diagrams (continued)
High-Bandwidth, Quad DPDT Switches
MAX4760/MAX4761
Timing Circuits/Timing Diagrams (continued)
+5V 10nF
OFF-ISOLATION = 20log ✕
VOUT
VIN
ON-LOSS = 20log ✕
VOUT
VIN
NETWORK
ANALYZER
0V OR V+
IN_
NC1
V+
VIN
COM1
50Ω
CROSSTALK = 20log ✕
MAX4760
MAX4761
MEAS
VOUT
NO1*
50Ω
50Ω
GND
REF
50Ω
VOUT
VIN
50Ω
*FOR CROSSTALK THIS PIN IS NO2.
NC2 AND COM2 ARE OPEN.
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.
OFF-ISOLATION IS MEASURED BETWEEN COM_ AND OFF NO_ OR NC_ TERMINAL ON EACH SWITCH.
ON-LOSS IS MEASURED BETWEEN COM_ AND ON NO_ OR NC_ TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
Figure 6. On-Loss, Off-Isolation, and Crosstalk
Typical Operating Circuit
10nF
COM_
V+
INA
NO1
V+
NC1
NO2
MAX4760
MAX4761
NC2
IN
CAPACITANCE
METER
f = 1MHz
NC_ or
NO_
GND
COM1
HEADPHONES
RIGHT
COM2
HEADPHONES
LEFT
VIL OR VIH
INO
NO7
COM7
SWITCHING DATA SIGNALS
NC7
NO8
COM8
Figure 7. Channel On-/Off-Capacitance
NC8
MAX4760
10
______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
TOP VIEW
MAX4760
NO2
NO3
NO4
COM5
NO1
28
COM4
N.C.
COM3
29
COM2
NO6
COM1
30
NC4
NO5
NC3
31
INB
N.C.
INA
32
NC2
NO1
NC1
33
6
NO2
5
34
4
N.C.
3
35
2
COM1
1
36
(BUMP SIDE DOWN)
A
B
V+
GND
C
NO5
NO6
GND
V+
NO7
NO8
D
COM5
COM6
COM7
COM8
E
NC5
NC6
INC
IND
NC7
NC8
NC1
1
27
NC5
COM2
2
26
COM6
NC2
3
25
NC6
INA
4
24
INC
V+
5
23
GND
INB
6
22
IND
NC3
7
21
NC7
COM3
8
20
COM7
NC4
9
19
NC8
MAX4760
MAX4760
INA NO1/NO2
OFF
LOW
ON
HIGH
INB NO3/NO4
OFF
LOW
ON
HIGH
INC NO5/NO6
LOW
OFF
HIGH
ON
IND NO7/NO8
LOW
OFF
HIGH
ON
NC1/NC2
ON
OFF
NC3/NC4
ON
OFF
NC5/NC6
ON
OFF
NC7/NC8
ON
OFF
10
11
12
13
14
15
16
17
18
N.C.
NO3
NO4
N.C.
NO8
NO7
N.C.
COM8
UCSP
COM4
F
THIN QFN
NOTE: EXPOSED PADDLE CONNECTED TO GND OR FLOATING.
MAX4761
EN
INA
NO_
NC_
LOW
LOW
HIGH
HIGH
LOW
HIGH
X
X
OFF
ON
OFF
OFF
ON
OFF
OFF
OFF
______________________________________________________________________________________
11
MAX4760/MAX4761
Pin Configurations/Truth Tables
High-Bandwidth, Quad DPDT Switches
MAX4760/MAX4761
Pin Configurations/Truth Tables (continued)
TOP VIEW
MAX4761
COM5
28
COM4
N.C.
COM3
29
COM2
NO6
COM1
30
NC4
NO5
NC3
31
N.C.
N.C.
INA
32
NC2
NO1
NC1
33
6
NO2
5
34
4
N.C.
3
35
2
COM1
1
36
(BUMP SIDE DOWN)
A
B
NO1
NO2
V+
GND
NO3
NO6
GND
V+
NO7
NO8
D
COM5
COM6
COM7
COM8
E
NC5
NC6
N.C.
EN
NC7
1
27
NC5
COM2
2
26
COM6
NC2
3
25
NC6
INA
4
24
N.C.
V+
5
23
GND
N.C.
6
22
EN
NC3
7
21
NC7
COM3
8
20
COM7
NC4
9
19
NC8
NO4
C
NO5
NC1
NC8
MAX4761
10
11
12
13
14
15
16
17
18
N.C.
NO3
NO4
N.C.
NO8
NO7
N.C.
COM8
UCSP
COM4
F
THIN QFN
NOTE: EXPOSED PADDLE CONNECTED TO GND.
Chip Information
TRANSISTOR COUNT: 1432
PROCESS: CMOS
Ordering Information (continued)
PART
TEMP RANGE
MAX4761EWX+T -40°C to +85°C
MAX4761ETX
12
-40°C to +85°C
PINPACKAGE
PKG
CODE
36 UCSP
AS27Y-2Z
36 Thin QFN
(6mm x 6mm)
AS27Y-2Z
______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
QFN THIN.EPS
______________________________________________________________________________________
13
MAX4760/MAX4761
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)
(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.)
36L,UCSP.EPS
MAX4760/MAX4761
High-Bandwidth, Quad DPDT Switches
PACKAGE OUTLINE, 6x6 UCSP
21-0082
K
1
1
Revision History
Pages changed at Rev 3: 1, 12, 14
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implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
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© 2007 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products, Inc.