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High-Bandwidth, Quad DPDT Switches
General Description
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 single-
pole/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) Signal-
Switching 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)
MAX4760/MAX4761
Applications
USB Signal Switching
Audio-Signal Routing
Cellular Phones
PDAs/Hand-Held Devices
Notebook Computers
PART
Ordering Information
TEMP RANGE
PIN-
PACKAGE
36 UCSP
36 Thin QFN
(6mm x 6mm)
PKG
CODE
AS27Y-2Z
AS27Y-2Z
MAX4760
EWX+T -40°C to +85°C
MAX4760ETX
-40°C to +85°C
+Denotes
a lead-free package.
Ordering Information continued at end of data sheet.
Functional Diagrams
INA
NO1
DATA 1
COM1
NC1
NO2
DATA 2
COM2
NC2
INB
NO3
NC2
NO3
COM3
NC3
NO4
DATA 4
COM4
NC4
INC
NO5
NC4
NO5
COM5
NC5
NO6
DATA 6
COM6
NC6
IND
NO7
NC6
NC5
NO6
DATA 6
COM6
NC3
NO4
DATA 4
COM4
NC1
NO2
DATA 2
COM2
INA
NO1
DATA 1
COM1
DATA 3
DATA 3
COM3
DATA 5
DATA 5
COM5
DATA 7
COM7
NO7
DATA 7
COM7
NC7
NO8
DATA 8
COM8
NC7
NO8
DATA 8
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
1
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.
High-Bandwidth, Quad DPDT Switches
MAX4760/MAX4761
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 (T
A
= +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, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V+ = 3V, T
A
= +25°C.) (Notes 2, 3)
PARAMETER
ANALOG SWITCH
Analog Signal Range
On-Resistance (Note 4)
On-Resistance Match
Between Channels
(Notes 4, 5)
On-Resistance Flatness
(Note 6)
NO_, NC_ Off-Leakage
Current
COM_ Off-Leakage Current
COM_ On-Leakage Current
DYNAMIC
Turn-On Time
Turn-Off Time
t
ON
t
OFF
V
NO
_ or V
NC
_ = 1.5V;
R
L
= 50Ω; C
L
= 35pF, Figure 2
V+ = 2.7V, V
NO
_ or V
NC
_ = 1.5V;
R
L
= 50Ω; C
L
= 35pF, Figure 2
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
25
45
140
150
50
60
ns
ns
I
COM_(ON)
V
COM_
,
V
NO_
,
V
R
ON
ΔR
ON
T
MIN
to T
MAX
V+ = 2.7V, I
COM
_ = 10mA,
V
NC_
or V
NO
_ = 0V or V+
V+ = 2.7V, I
COM
_ = 10mA,
V
NO_
or V
NC_
= 1.5V
V+ = 2.7V, I
COM
_=10mA,
V
NC_
or V
NO_
= 0V or V+
V+ = 3.6V;
V
COM
_ = 3.3V, 0.3V;
V
NO
_ or V
NC
_ = 0.3V, 3.3V
V+ = 3.6V (MAX4761); V
COM
_ = 3.3V,
0.3V; V
NO
_ or V
NC
_ = 0.3V, 3.3V
V+ = 3.6V; V
COM
_ = 3.3V, 0.3V;
V
NO
_ or V
NC
_ = 3.3V, 0.3V or floating
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
-5
-25
-5
-25
-5
-25
0.01
0.8
0.2
0
2.0
V+
3.5
4
0.4
0.55
1.5
1.8
+5
nA
+25
+5
+25
+5
+25
nA
nA
V
Ω
Ω
Ω
SYMBOL
CONDITIONS
TA
MIN
TYP
MAX
UNITS
R
FLAT(ON)
I
NO_(OFF),
I
NC_(OFF)
2
_______________________________________________________________________________________
High-Bandwidth, Quad DPDT Switches
ELECTRICAL CHARACTERISTICS (continued)
(V+ = +2.7V to +5.25V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V+ = 3V, T
A
= +25°C.) (Notes 2, 3)
PARAMETER
Break-Before-Make (Note 7)
Skew (Note 7)
Charge Injection
On-Channel -3dB Bandwidth
Off-Isolation (Note 8)
Crosstalk (Note 9)
Total Harmonic Distortion
NO_, NC_ Off-Capacitance
COM_ On-Capacitance
COM_ Off-Capacitance
DIGITAL I/O (IN_,
EN)
Input-Logic High
Input-Logic Low
Input Leakage Current
POWER SUPPLY
Power-Supply Range
Positive Supply Current
V+
I+
V+ = 4.3V, V
IN
_ = 0V or V+
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
1.8
0.01
1.0
5.5
V
µA
V
IH
V
IL
I
IN
V+ = 2.7V to 3.6V
V+ = 3.6V to 5.25V
V+ = 2.7V to 3.6V
V+ = 3.6V to 5.25V
V
IN
= 0 or V+
T
MIN
to T
MAX
T
MIN
to T
MAX
T
MIN
to T
MAX
T
MIN
to T
MAX
T
MIN
to T
MAX
1.4
2.0
0.5
0.6
1
V
V
µA
SYMBOL
t
BBM
t
SKEW
Q
BW
V
ISO
V
CT
THD
CONDITIONS
V+ = 2.7V, V
NO
_ or V
NC
_ = 1.5V;
R
L
= 50Ω, C
L
= 35pF, Figure 3
R
S
= 39Ω, C
L
= 50pF, Figure 4
V
GEN
= 0V, R
GEN
= 0,
C
L
= 1.0nF, Figure 5
Signal = 0dBm, C
L
= 5pF, R
L
= 50Ω
C
L
= 5pF, R
L
= 50Ω, V
COM_
= 1V
P-P
,
f = 100kHz, Figure 6
C
L
= 5pF, R
L
= 50Ω, V
COM_
= 1V
P-P
,
f = 100kHz, Figure 6
f = 20Hz to 20kHz, 1V
P-P
, R
L
= 600Ω
TA
+25°C
T
MIN
to T
MAX
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
2
0.2
15
320
100
95
0.03
25
54
25
0.5
MIN
TYP
15
MAX
UNITS
ns
ns
pC
MHz
dB
dB
%
pF
pF
pF
MAX4760/MAX4761
C
NO_(OFF),
V
NO_
, V
NC
_ = GND, f = 1MHz,
C
NC_(OFF)
Figure 7
C
COM(ON)
C
COM(OFF)
V
NO_
, V
NC
_ = GND, f = 1MHz,
Figure 7
V
COM_
= GND, f = 1MHz (MAX4761),
Figure 7
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 cor-
relation and design.
Note 4:
R
ON
and
ΔR
ON
matching specifications are guaranteed by design.
Note 5:
ΔR
ON
= R
ON(MAX)
- R
ON(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 = 20log
10
[V
COM_
/ (V
NO_
or V
NC_
)], V
COM_
= output, V
NO_
or V
NC_
= input to off switch.
Note 9:
Between any two switches.
_______________________________________________________________________________________
3
High-Bandwidth, Quad DPDT Switches
MAX4760/MAX4761
Typical Operating Characteristics
(V+ = 3V, T
A
= +25°C, unless otherwise noted.)
ON-RESISTANCE vs. V
COM
MAX4760 toc01
ON-RESISTANCE
vs. V
COM
AND TEMPERATURE
MAX4760 toc02
ON-RESISTANCE
vs. V
COM
AND TEMPERATURE
V+ = 5V
MAX4760 toc03
10
9
8
7
V+ = 1.8V
5
V+ = 3V
4
T
A
= +85°C
T
A
= +25°C
5
4
R
ON
(Ω)
R
ON
(Ω)
6
5
4
3
2
1
0
V+ = 3V
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
V
COM
(V)
V+ = 2.7V
V+ = 5V
V+ = 2V
V+ = 2.3V
R
ON
(Ω)
3
3
T
A
= +85°C
T
A
= +25°C
2
2
1
T
A
= -40°C
1
T
A
= -40°C
0
0
0.5
1.0
1.5
V
COM
(V)
2.0
2.5
3.0
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
V
COM
(V)
NO/NC OFF-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4760 toc04
COM ON-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4760 toc05
COM OFF-LEAKAGE CURRENT
vs. TEMPERATURE
V+ = 3V/5V
COM OFF-LEAKAGE CURRENT (nA)
MAX4760 toc06
10
V+ = 3V/5V
NO/NC OFF-LEAKAGE CURRENT (nA)
10
V+ = 3V/5V
COM ON-LEAKAGE CURRENT (nA)
10
1
V+ = 5V
0.1
V+ = 3V
0.01
1
V+ = 5V
0.1
V+ = 3V
1
V+ = 5V
0.1
V+ = 3V
0.01
0.001
-40
-15
10
35
60
85
TEMPERATURE (°C)
0.001
-40
-15
10
35
60
85
TEMPERATURE (°C)
0.01
-40
-15
10
35
60
85
TEMPERATURE (°C)
CHARGE INJECTION vs. V
COM
C
L
= 1nF
50
CHARGE INJECTION (pC)
40
V+ = 5V
30
20
10
0
0
1
2
3
4
5
V
COM
(V)
V+ = 3V
MAX4760 toc07
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX4760 toc08
SUPPLY CURRENT vs. TEMPERATURE
MAX4760 toc09
60
4.0
3.5
SUPPLY CURRENT (nA)
3.0
2.5
2.0
1.5
1.0
0.5
0
1000
SUPPLY CURRENT (nA)
V+ = 5V
10
V+ = 3V
0.1
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
60
85
TEMPERATURE (°C)
4
_______________________________________________________________________________________
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