MAXIM MAX4760ETX+T

19-3037; Rev 5; 4/09
High-Bandwidth, Quad DPDT Switches
Features
The MAX4760/MAX4760A/MAX4761/MAX4761A (DPDT)
analog switches operate from a single +1.8V to +5.5V
supply. These switches feature a low 54pF (typ)
capacitance for high-speed data switching applications.
The MAX4760/MAX4760A are quad double-pole/double-throw (DPDT) switches, and the MAX4761/
MAX4761A are octal single-pole/double-throw (SPDT)
switches. They have eight 2.0Ω (typ) on-resistance,
low-capacitance switches to route audio and data signals. The MAX4760/MAX4760A have four logic inputs to
control the switches in pairs. The MAX4761/MAX4761A
have one logic control input and an enable input (EN)
to disable the switches.
♦ USB 1.1 and USB 2.0 (Full Speed 12Mbps)
Signal-Switching Compliant
♦ Data and Audio Signal Routing
The MAX4760/MAX4760A/MAX4761/MAX4761A are
available in a small 36-pin (6mm x 6mm) TQFN and
36-bump (3mm x 3mm) chip-scale package (UCSP™).
♦ +1.8V to +5.5V Supply Range
Applications
USB Signal Switching
Audio-Signal Switching
Cellular Phones
PDAs/Handheld Devices
Notebook Computers
♦ Low-Capacitance Data Switches
♦ Less than 0.2ns Skew
♦ -3dB Bandwidth: 150MHz (typ)
♦ 0.2Ω (typ) Channel-to-Channel Matching
♦ 0.8Ω (typ) On-Resistance Flatness
♦ Rail-to-Rail Signal Handling
♦ 0.03% (typ) THD
♦ Low Supply Current with 1.8V Logic Threshold
(MAX4760A/MAX4761A)
♦ Tiny 36-Bump UCSP (3mm x 3mm)
♦ 36-Pin TQFN (6mm x 6mm)
♦ -40°C to +85°C Operating Temperature Range
Ordering Information
Functional Diagrams
INA
NO1
INA
NO1
DATA 1
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
MAX4760EBX+T
-40°C to +85°C
36 UCSP
MAX4760ETX+T
-40°C to +85°C
36 TQFN-EP**
MAX4760AEWX+T
-40°C to +85°C
36 UCSP
MAX4760AETX+T*
-40°C to +85°C
36 TQFN-EP**
MAX4761EBX+T
-40°C to +85°C
36 UCSP
MAX4761ETX+T
-40°C to +85°C
36 TQFN-EP**
MAX4761AEBX+T*
-40°C to +85°C
36 UCSP
MAX4761AETX+T*
-40°C to +85°C
36 TQFN-EP**
COM6
*Future product—contact factory for availability.
**EP = Exposed Pad.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
NC6
NO7
DATA 7
DATA 7
COM7
NC7
NO8
PINPACKAGE
DATA 1
COM1
NC1
NO2
TEMP RANGE
PART
COM7
NC7
NO8
DATA 8
DATA 8
COM8
NC8
COM8
Pin Configurations/Truth Tables and Typical Operating Circuit
appear at end of data sheet.
NC8
MAX4760/MAX4760A
EN
MAX4761/MAX4761A
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/MAX4760A/MAX4761/MAX4761A
General Description
MAX4760/MAX4760A/MAX4761/MAX4761A
High-Bandwidth, Quad DPDT Switches
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
V+ .............................................................................-0.3V to +6V
IN_, EN (MAX4760/MAX4761 ...................................-0.3V to +6V
IN_, EN (MAX4760A/MAX4761A ..................-0.3V to (V+ + 0.3V)
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 TQFN (derate 26.3mW/°C above +70°C)......... 2105mW
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_, VNC_
+25°C
RON
V+ = 2.7V, ICOM_ = 10mA,
VNC_ or VNO_ = 0V or V+ (Note 4)
TMIN to TMAX
ΔRON
V+ = 2.7V, ICOM_ = 10mA,
VNO_ or VNC_ = 1.5V (Notes 4, 5)
TMIN to TMAX
On-Resistance Flatness
RFLAT(ON)
V+ = 2.7V, ICOM_=10mA,
VNC_ or VNO_ = 0V or V+ (Note 6)
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
On-Resistance Match
Between Channels
COM_ Off-Leakage Current
COM_ On-Leakage Current
ICOM_(ON)
2.0
3.5
4
+25°C
0.2
0.4
0.55
+25°C
0.8
TMIN to TMAX
1.5
1.8
+25°C
-5
+5
TMIN to TMAX
-25
+25
Ω
Ω
Ω
nA
V+ = 3.6V (MAX4761/MAX4761A);
VCOM_ = 3.3V, 0.3V; VNO_ or
VNC_ = 0.3V, 3.3V
+25°C
-5
TMIN to TMAX
-25
V+ = 3.6V; VCOM_ = 3.3V, 0.3V; VNO_
or VNC_ = 3.3V, 0.3V or unconnected
+25°C
-5
+5
TMIN to TMAX
-25
+25
0.1
+5
nA
+25
nA
DYNAMIC
Turn-On Time
2
tON
VNO_ or VNC_ = 1.5V;
RL = 50Ω; CL = 35pF,
Figure 2
+25°C
MAX4760/
MAX4761
TMIN to TMAX
MAX4760A/
MAX4761A
TMIN to TMAX
+25°C
45
140
150
400
_______________________________________________________________________________________
800
800
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
Turn-Off Time
SYMBOL
tOFF
Break-Before-Make
tBBM
CONDITIONS
V+ = 2.7V, VNO_ or
VNC_ = 1.5V;
RL = 50Ω; CL = 35pF,
Figure 2
TA
+25°C
MAX4760/
MAX4761
TMIN to TMAX
MAX4760A/
MAX4761A
TMIN to TMAX
V+ = 2.7V, VNO_ or VNC_ = 1.5V;
RL = 50Ω, CL = 35pF, Figure 3
(Note 7)
MIN
TYP
MAX
25
50
60
+25°C
300
800
800
+25°C
UNITS
ns
ns
100
ns
TMIN to TMAX
2
RS = 39Ω, CL = 50pF, Figure 4
(Note 7)
+25°C
0.2
ns
VGEN = 0V, RGEN = 0V,
CL = 1.0nF, Figure 5
+25°C
15
pC
BW
Signal = 0dBm, CL = 5pF, RL = 50Ω
+25°C
150
MHz
Off-Isolation
VISO
CL = 5pF, RL = 50Ω, VCOM_ = 1VP-P,
f = 100kHz, Figure 6 (Note 8)
+25°C
80
dB
Crosstalk
VCT
CL = 5pF, RL = 50Ω, VCOM_ = 1VP-P,
f = 100kHz, Figure 6 (Note 9)
+25°C
95
dB
Total Harmonic Distortion
THD
f = 20Hz to 20kHz , VCOM_ = 1VP-P,
DC bias = V+/2, RL = RS = 600Ω
+25°C
0.03
%
Skew
tSKEW
Charge Injection
Q
On-Channel -3dB Bandwidth
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/
MAX4761A), Figure 7
+25°C
25
pF
DIGITAL I/O (IN_, EN)
Input-Logic High
VIH
Input-Logic Low
VIL
Input Leakage Current
IIN, IEN
V+ = 2.7V to 3.6V
TMIN to TMAX
1.4
V+ = 3.6V to 5.5V
(MAX4760A/MAX4761A)
TMIN to TMAX
1.6
V+ = 3.6V to 5.25V
(MAX4760/MAX4761)
TMIN to TMAX
2.0
V+ = 2.7V to 3.6V
TMIN to TMAX
0.5
V+ = 3.6V to 5.5V
(MAX4760A/MAX4761A)
TMIN to TMAX
0.5
V+ = 3.6V to 5.25V
(MAX4760/MAX4761)
TMIN to TMAX
0.6
VIN = 0V or V+
TMIN to TMAX
1
V
V
µA
_______________________________________________________________________________________
3
MAX4760/MAX4760A/MAX4761/MAX4761A
ELECTRICAL CHARACTERISTICS (continued)
ELECTRICAL CHARACTERISTICS (continued)
(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
1.8
TYP
MAX
UNITS
5.5
V
POWER SUPPLY
Power-Supply Range
V+
+25°C
V+ = 4.3V, VIN_ = 0V or V+
(MAX4760/MAX4761)
Power Supply Current
I+
0.01
TMIN to TMAX
1.0
+25°C
0.01
V+ = 5.5V, VIN_ = 0V or V+
(MAX4760A/MAX4761A)
TMIN to TMAX
V+ = 5.5V, VIN_ = 1.8V
(MAX4760A/MAX4761A)
TMIN to TMAX
1.0
+25°C
µA
5.5
12
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. TQFN 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.
Typical Operating Characteristics
(V+ = 3V, TA = +25°C, unless otherwise noted.)
V+ = 3V
4
6
V+ = 2V
5
TA = +85°C
3
TA = +25°C
3
TA = +85°C
TA = +25°C
2
2
V+ = 2.3V
V+ = 5V
4
RON (Ω)
RON (Ω)
7
MAX4760A/61A toc03
V+ = 1.8V
5
MAX4760A/61A toc02
9
8
5
MAX4760A/61A toc01
10
ON-RESISTANCE
vs. VCOM AND TEMPERATURE
(MAX4760/MAX4761)
ON-RESISTANCE
vs. VCOM AND TEMPERATURE
(MAX4760/MAX4761)
ON-RESISTANCE vs. VCOM
(MAX4760/MAX4761)
RON (Ω)
MAX4760/MAX4760A/MAX4761/MAX4761A
High-Bandwidth, Quad DPDT Switches
4
V+ = 2.7V
3
V+ = 5V
TA = -40°C
1
1
2
TA = -40°C
V+ = 3V
1
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VCOM (V)
4
0
0
0
0.5
1.0
1.5
VCOM (V)
2.0
2.5
3.0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VCOM (V)
_______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
V+ = 2.3V
V+ = 2.7V
V+ = 3V
10
5
V+ = 5V
3
TA = +85°C
TA = +25°C
2
1
MAX4760A/61A toc06
V+ = 5V
4
RON (Ω)
V+ = 2V
V+ = 3V
4
RON (Ω)
RON (Ω)
20
5
MAX4760A/61A toc05
V+ = 1.8V
15
5
MAX4760A/61A toc04
25
ON-RESISTANCE
vs. VCOM AND TEMPERATURE
(MAX4760A/MAX4761A)
ON-RESISTANCE
vs. VCOM AND TEMPERATURE
(MAX4760A/MAX4761A)
ON-RESISTANCE vs. VCOM
(MAX4760A/MAX4761A)
3
TA = +85°C
2
TA = +25°C
1
TA = -40°C
TA = -40°C
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
1.0
1.5
2.0
2.5
3.0
0
NO/NC OFF-LEAKAGE CURRENT
vs. TEMPERATURE
COM ON-LEAKAGE CURRENT
vs. TEMPERATURE
COM OFF-LEAKAGE CURRENT
vs. TEMPERATURE
V+ = 3V
0.01
0.001
V+ = 5V
0.1
V+ = 3V
0.01
0.001
-15
10
35
60
85
MAX4760A/61A toc09
V+ = 5V
0.1
V+ = 3V
0.01
-40
-15
10
35
85
60
-40
-15
10
35
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
CHARGE INJECTION
vs. VCOM
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
vs. TEMPERATURE
V+ = 5V
40
V+ = 3V
20
10
6.0
5.0
4.0
3.0
2.0
60
85
60
85
1000
SUPPLY CURRENT (nA)
50
7.0
MAX4760A/61A toc11
CL = 1nF
SUPPLY CURRENT (nA)
MAX4760A/61A toc10
60
30
1
MAX4760A/61A toc12
0.1
1
10
COM OFF-LEAKAGE CURRENT (nA)
V+ = 5V
10
MAX4760A/61A toc08
1
-40
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VCOM (V)
MAX4760A/61A toc07
NO/NC OFF-LEAKAGE CURRENT (nA)
0.5
VCOM (V)
10
CHARGE INJECTION (pC)
0
VCOM (V)
COM ON-LEAKAGE CURRENT (nA)
0
0
V+ = 5V
10
V+ = 3V
0.1
1.0
0
0.0
0
1
2
3
VCOM (V)
4
5
0.001
1.5
2.0
2.5
3.0
3.5
4.0
SUPPLY VOLTAGE (V)
4.5
5.0
5.5
-40
-15
10
35
TEMPERATURE (°C)
_______________________________________________________________________________________
5
MAX4760/MAX4760A/MAX4761/MAX4761A
Typical Operating Characteristics (continued)
(V+ = 3V, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
(V+ = 3V, TA = +25°C, unless otherwise noted.)
TURN-ON/OFF TIME
vs. SUPPLY VOLTAGE
(MAX4760/MAX4761)
70
tON
60
1.2
VIH
VIL
0.8
50
40
30
900
tON
800
tOFF
20
0.4
1000
tON/tOFF (ns)
tON/tOFF (ns)
1.6
1100
MAX4760A/61A toc14
80
MAX4760A/61A toc13
2.0
TURN-ON/OFF TIME
vs. SUPPLY VOLTAGE
(MAX4760A/MAX4761A)
MAX4760A/61A toc15
LOGIC THRESHOLD
vs. SUPPLY VOLTAGE
LOGIC THRESHOLD (V)
700
600
500
400
tOFF
300
200
10
0
100
0
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0
1.5
2.0
SUPPLY CURRENT (V)
2.5
3.0
3.5
4.0
4.5
2.5
3.0
600
MAX4760A/61A toc16
60
tON, V+ = 3V
50
500
tON, V+ = 3V
tON/tOFF (ns)
400
40
tON, V+ = 5V
20
300
tON, V+ = 5V
200
tOFF, V+ = 3V
100
tOFF, V+ = 5V
tOFF, V+ = 3V
10
tOFF, V+ = 5V
0
0
-15
10
35
60
85
-40
10
35
60
TEMPERATURE (°C)
FREQUENCY RESPONSE
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
1
MAX4760A/61A toc18
20
0
-20
ON-LOSS
85
RL = 600Ω
0.1
THD (%)
-40
-60
-15
TEMPERATURE (°C)
MAX4760A/61A toc19
-40
OFF-ISOLATION
-80
0.01
-100
-120
CROSS-TALK
-140
0.0001
0.001
0.01
1
FREQUENCY (MHz)
6
100
10
3.5
4.0
SUPPLY VOLTAGE (V)
TURN-ON/OFF TIMES
vs. TEMPERATURE
(MAX4760A/MAX4761A)
70
tON/tOFF (ns)
2.0
1.5
SUPPLY VOLTAGE (V)
TURN-ON/OFF TIMES
vs. TEMPERATURE
(MAX4760/MAX4761)
30
5.5
5.0
MAX4760A/61A toc17
1.5
ON-LOSS (dB)
MAX4760/MAX4760A/MAX4761/MAX4761A
High-Bandwidth, Quad DPDT Switches
100
1,000
10,000
100,000
FREQUENCY (Hz)
_______________________________________________________________________________________
4.5
5.0
5.5
High-Bandwidth, Quad DPDT Switches
PIN
NAME
FUNCTION
MAX4760/MAX4760A
MAX4761/MAX4761A
TQFN-EP
UCSP
TQFN-EP
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/MAX4760A Switch 1
and Switch 2. Digital control input for all MAX4761/MAX4761A
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. Leave N.C. unconnected.
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 6
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 2
36
B1
36
B1
COM1
—
—
22
F4
EN
Output Enable, Active Low
—
—
—
—
EP
Exposed Pad (TQFN Only). Connect EP to GND.
Analog Switch 1, Normally Closed Terminal 1
Analog Switch 2, Common Terminal 2
Analog Switch 3, Common Terminal 3
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
_______________________________________________________________________________________
7
MAX4760/MAX4760A/MAX4761/MAX4761A
Pin Description
MAX4760/MAX4760A/MAX4761/MAX4761A
High-Bandwidth, Quad DPDT Switches
Detailed Description
The MAX4760/MAX4760A quad double-pole/doublethrow (DPDT) and the MAX4761/MAX4761A 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/MAX4760A/MAX4761/MAX4761A have a
guaranteed 2.0Ω (typ) on-resistance to switch data or
audio signals. The low 54pF (typ) capacitance and 0.2ns
change in skew makes them ideal for data switching
applications. The MAX4760/MAX4760A have four logic
inputs to control two switches in pairs and the
MAX4761/MAX4761A have one logic control input and an
enable input (EN) to disable the switches.
POSITIVE SUPPLY
V+
D1
MAX4760
MAX4761
NO
COM
GND
Applications Information
Digital Control Inputs
The MAX4760/MAX4760A/MAX4761/MAX4761A 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 the MAX4761/MAX4761A, 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.
8
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, refer to the
Application Note UCSP—A Wafer-Level Chip-Scale
Package available on Maxim’s website at www.maximic.com/ucsp.
_______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
V+
MAX4760/MAX4760A
MAX4761/MAX4761A
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
VOUT = VN_
RL + RON
(
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/MAX4760A
MAX4761/MAX4761A
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
_______________________________________________________________________________________
9
MAX4760/MAX4760A/MAX4761/MAX4761A
Timing Circuits/Timing Diagrams
MAX4760/MAX4760A/MAX4761/MAX4761A
High-Bandwidth, Quad DPDT Switches
Timing Circuits/Timing Diagrams (continued)
tri
TxD+
50%
B+
A+
Rs
90%
10%
INPUT A
tskew_i
CL
INPUT A-
90%
50%
10%
tfi
MAX4760/MAX4760A
MAX4761/MAX4761A
tro
B-
A-
TxD-
10%
OUTPUT B
50%
tskew_o
CL
Rs
OUTPUT B-
Rs = 39Ω
CL = 50pF
90%
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/MAX4760A
MAX4761/MAX4761A
ΔVOUT
V+
RGEN
V GEN
VOUT
COM_
NC_
OR NO_
VOUT
IN
OFF
CL
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
10
______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
+5V 10nF
OFF-ISOLATION = 20log ✕
VOUT
VIN
ON-LOSS = 20log ✕
VOUT
VIN
NETWORK
ANALYZER
0V OR V+
IN_
V+
MAX4760/MAX4760A
MAX4761/MAX4761A
50Ω
50Ω
CROSSTALK = 20log ✕
MEAS
VOUT
NO1*
NC1
50Ω
VIN
COM1
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
V+
INA
NO1
V+
NC1
NO2
COM1
HEADPHONES
RIGHT
COM2
HEADPHONES
LEFT
MAX4760/MAX4760A
MAX4761/MAX4761A
NC2
COM_
IN
CAPACITANCE
METER
f = 1MHz
NC_ or
NO_
GND
VIL OR VIH
INO
NO7
COM7
SWITCHING DATA SIGNALS
NC7
NO8
COM8
Figure 7. Channel On-/Off-Capacitance
NC8
MAX4760/
MAX4760A
______________________________________________________________________________________
11
MAX4760/MAX4760A/MAX4761/MAX4761A
Timing Circuits/Timing Diagrams (continued)
High-Bandwidth, Quad DPDT Switches
MAX4760/MAX4760A/MAX4761/MAX4761A
Pin Configurations/Truth Tables
TOP VIEW
MAX4760/MAX4760A
NO3
NO4
COM5
NO2
28
NO1
N.C.
COM4
29
COM3
NO6
COM2
30
COM1
NO5
NC4
31
NC3
N.C.
INB
32
INA
NO1
NC2
33
NC1
NO2
6
34
5
N.C.
4
35
3
+
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
20
COM7
19
NC8
COM3
8
NC4
9
MAX4760/MAX4760A
*EP
15
16
17
18
NO7
N.C.
COM8
13
NO4
NO8
12
NO3
14
11
N.C.
N.C.
10
UCSP
COM4
F
TQFN
*EXPOSED PADDLE CONNECTED TO GND.
MAX4760/MAX4760A
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
12
NC1/NC2
ON
OFF
NC3/NC4
ON
OFF
NC5/NC6
ON
OFF
NC7/NC8
ON
OFF
______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
TOP VIEW
COM1
COM2
COM3
COM4
B
NO1
NO2
V+
GND
NO3
NO4
C
NO5
NO6
COM5
COM6
GND
V+
NO7
NO8
COM7
COM8
NO5
NO6
N.C.
COM5
30
29
28
NC4
31
NC3
N.C.
N.C.
32
INA
NO1
NC2
33
NC1
A
NO2
6
34
5
N.C.
4
35
3
COM1
2
+
+
1
36
MAX4761/MAX4761A
(BUMP SIDE DOWN)
NC1
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
MAX4761/MAX4761A
D
E
UCSP
14
15
16
17
18
N.C.
NO8
NO7
N.C.
COM8
13
NO4
F
12
NC8
NO3
NC7
11
EN
N.C.
N.C.
10
NC6
COM4
NC5
*EP
TQFN
*EXPOSED PADDLE CONNECTED TO GND.
MAX4761/MAX4761A
EN
INA
NO_
NC_
LOW
LOW
HIGH
HIGH
LOW
HIGH
X
X
OFF
ON
OFF
OFF
ON
OFF
OFF
OFF
Package Information
Chip Information
PROCESS: CMOS
For the latest package outline information and land patterns, go
to www.maxim-ic.com/packages.
PACKAGE TYPE
PACKAGE CODE
DOCUMENT NO.
36 UCSP
B36-2
21-0082
36 TQFN-EP
T3666-3
21-0141
______________________________________________________________________________________
13
MAX4760/MAX4760A/MAX4761/MAX4761A
Pin Configurations/Truth Tables (continued)
MAX4760/MAX4760A/MAX4761/MAX4761A
High-Bandwidth, Quad DPDT Switches
Revision History
REVISION
NUMBER
REVISION
DATE
4
4/07
Addition of MAX4760A/MAX4761A
5
4/09
Revised Ordering Information, Electrical Characteristics table, and Pin
Description.
DESCRIPTION
PAGES
CHANGED
1–14
1, 3, 7
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.
14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2009 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.