19-2382; Rev 2; 12/06
0.6Ω, Low-Voltage, Single-Supply, Dual SPDT
Analog Switch
General Description
The MAX4736 is a low on-resistance, low-voltage, dual
single-pole/double throw (SPDT) analog switch that
operates from a single 1.6V to 4.2V supply. This device
has fast switching speeds (t
ON
= 25ns, t
OFF
= 20ns
max), handles rail-to-rail analog signals, and consumes
less than 4µW of quiescent power. The MAX4736 has
break-before-make switching.
When powered from a 3V supply, the MAX4736 fea-
tures low 0.6Ω on-resistance (R
ON
), with 0.1Ω R
ON
matching and 0.05Ω R
ON
flatness. The digital logic
input is 1.8V CMOS compatible when using a single 3V
supply.
The MAX4736 has one normally open (NO) switch and
one normally closed (NC) switch, and is available in 12-
pin TQFN-EP (3mm x 3mm), 10-pin µMAX and 10 pin
µDFN (2mm x 2mm) packages.
♦
Low R
ON
0.6Ω (3V Supply)
1.5Ω (1.8V Supply)
♦
0.1Ω max R
ON
Flatness (3V Supply)
♦
Single-Supply Operation Down to 1.6V
♦
Available in TQFN,
µDFN
and
µMAX
Packages
♦
1.8V CMOS Logic Compatible (3V Supply)
♦
Fast Switching: t
ON
= 25ns, t
OFF
= 20ns
Features
MAX4736
Applications
Power Routing
Battery-Powered Systems
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Communications Circuits
PCMCIA Cards
Cellular Phones
Modems
Hard Drives
PART
MAX4736EUB
MAX4736ETC
MAX4736ELB
Ordering Information
PIN-PACKAGE
10 µMAX
12 Thin QFN-EP*
10 µDFN
PKG CODE
U10-2
T1233-1
L1022-1
Note:
All devices operate over the -40°C to +55°C operating
temperature range.
*EP
= Exposed pad.
Pin Configurations/Functional Diagrams/Truth Table
TOP VIEW
IN1
COM1 N.C.
11
10
IN1 1
NO1
GND
NO2
1
2
3
4
IN2
5
COM2
6
N.C.
9
8
7
NC1
V+
NC2
NO1
GND
NO2
IN2
2
3
4
5
10 COM1
9
NC1
V+
NC2
COM2
IN_
0
1
MAX4736
NO_
OFF
ON
NC_
ON
OFF
12
MAX4736
MAX4736
8
7
6
SWITCHES SHOWN
FOR LOGIC 0 INPUT
NOTE:
CONNECT EXPOSED PAD ON
TQFN AND
µDFN
TO GND.
µMAX/µDFN
TQFN
________________________________________________________________
Maxim Integrated Products
1
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.
0.6Ω, Low-Voltage, Single-Supply, Dual SPDT
Analog Switch
MAX4736
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND.)
V+, IN_...................................................................-0.3V to +4.6V
COM_, NO_, NC_ (Note 1) ...........................-0.3V to (V+ + 0.3V)
Continuous Current COM_, NO_, NC_ ...........................±300mA
Continuous Current (all other pins)...................................±20mA
Peak Current COM_, NO_, NC_
(pulsed at 1ms 10% duty cycle)...................................±500mA
Continuous Power Dissipation (T
A
= +70°C)
10-Pin µDFN (derate 5.3mW/°C above +70°C) ..........423.7mW
10-Pin µMAX (derate 5.6mW/°C above +70°C) .............444mW
12-Pin TQFN-EP (derate 14.7mW/°C above +70°C)....1176mW
Operating Temperature Range ...........................-40°C to +85°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1:
Signals on COM_, NO_, or NC_ exceeding V+ or GND are clamped by internal diodes. Limit forward 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—Single 3V Supply
(V+ = 2.7V to 4.2V, V
IH
= 1.4V, V
IL
= 0.5V, T
A
= T
MIN
to T
MAX
, unless otherwise specified. Typical values are at V+ = 3.0V,
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
ANALOG SWITCH
Analog Signal Range
SYMBOL
V
COM
_,
V
NO
_,
V
NC
_
R
ON
V+ = 2.7V,
I
COM
_ = 100mA;
V
NO
_ or V
NC
_ = 1.5V
V+ = 2.7V,
I
COM
_ = 100mA;
V
NO
_ or V
NC
_ = 1.5V
V+ = 2.7V,
I
COM
_ = 100mA;
V
NO
_ or V
NC
_ = 1V, 1.5V, 2V
V+ = 3.6V,
V
COM
_ = 0.3V, 3.3V;
V
NO
_ or V
NC
_ = 3.3V, 0.3V
V+ = 3.6V,
V
COM
_ = 0.3V, 3.3V;
V
NO
_ or V
NC
_ = 0.3V, 3.3V, 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
-1
-5
-2
-10
±0.002
0.1
0.3
0.05
0.2
±0.002
+1
nA
+5
+2
nA
+10
0.1
Ω
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
0
V+
V
0.6
0.8
Ω
1
0.2
Ω
On-Resistance (Note 4)
On-Resistance Match
Between Channels
(Notes 4, 5)
On-Resistance Flatness
(Note 6)
NO_ or NC_ Off-Leakage
Current
(Note 10)
∆R
ON
R
FLAT(ON)
I
NO
_
(OFF),
I
NC
_
(OFF)
COM_ On-Leakage Current
(Note 10)
I
COM_(ON)
2
_______________________________________________________________________________________
0.6Ω, Low-Voltage, Single-Supply, Dual SPDT
Analog Switch
ELECTRICAL CHARACTERISTICS—Single 3V Supply (continued)
(V+ = 2.7V to 4.2V, V
IH
= 1.4V, V
IL
= 0.5V, T
A
= T
MIN
to T
MAX
, unless otherwise specified. Typical values are at V+ = 3.0V,
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
V
NO
_, V
NC
_ = 1.5V;
R
L
= 50Ω, C
L
= 35pF,
Figure 1
V
NO
_, V
NC
_ = 1.5V;
R
L
= 50Ω, C
L
= 35pF,
Figure 1
V
NO
_, V
NC
_ = 1.5V;
R
L
= 50Ω, C
L
= 35pF,
Figure 2
V
GEN
= 0, R
GEN
= 0,
C
L
= 1.0nF, Figure 3
f = 1MHz, Figure 4
f = 1MHz, Figure 4
f = 1MHz, Figure 4
Signal = 0, R
IN
= R
OUT
=
50Ω, C
L
= 5pF, Figure 5
f = 1MHz, V
COM
_ = 1V
P-P
, R
L
=
50Ω, C
L
= 5pF, Figure 5
f = 1MHz, V
COM
_ = 1V
P-P
, R
L
=
50Ω, C
L
= 5pF, Figure 5
f = 20Hz to 20kHz, V
COM
_ =
2V
P-P
, R
L
= 32Ω
+25°C
+25°C
+25°C
T
A
MIN
TYP
MAX
UNITS
MAX4736
SWITCH DYNAMIC CHARACTERISTICS
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
+25°C
+25°C
+25°C
1
60
33
60
85
130
-52
-78
0.018
pC
pF
pF
pF
MHz
dB
dB
%
5
ns
15
20
25
ns
30
20
ns
25
Turn-On Time
t
ON
Turn-Off Time
t
OFF
Break-Before-Make (Note 7)
t
BBM
Charge Injection
NO_ or NC_ Off-Capacitance
COM_ Off-Capacitance
COM_ On-Capacitance
-3dB On-Channel Bandwidth
Off-Isolation (Note 8)
Crosstalk (Note 9)
Total Harmonic Distortion
LOGIC INPUT (A_, IN_)
Input Logic High
Input Logic Low
Input Leakage Current
POWER SUPPLY
Power-Supply Range
Positive Supply Current
Q
C
OFF
C
COM(OFF)
C
COM(ON)
BW
V
ISO
V
CT
THD
V
IH
V
IL
I
IN
V
IN_
= 0 or 3.6V
1.4
0.5
-1
+0.005
+1
V
V
µA
V+
I+
V+ = 3.6V, V
IN
_ = 0 or V+,
all channels on or off
1.6
0.006
3.6
1
V
µA
_______________________________________________________________________________________
3
0.6Ω, Low-Voltage, Single-Supply, Dual SPDT
Analog Switch
MAX4736
ELECTRICAL CHARACTERISTICS—Single 1.8V Supply
(V+ = 1.8V, V
IH
= 1.0V, V
IL
= 0.4V, T
A
= T
MIN
to T
MAX
, unless otherwise specified. Typical values are at T
A
= +25°C.) (Notes 2, 3)
PARAMETER
ANALOG SWITCH
Analog Signal Range
V
COM
_,
V
NO
_,
V
NC
_
R
ON
I
COM
_ = 10mA;
V
NO
_ or V
NC
_ = 1V
+25°C
T
MIN
to T
MAX
0
1.5
V+
2
3
V
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
On-Resistance
Ω
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time
t
ON
V
NO
_ or V
NC
_ = 1V;
RL = 50Ω, C
L
= 35pF,
Figure 1
V
NO
_ or V
NC
_ = 1V;
R
L
= 50Ω, C
L
= 35pF,
Figure 1
V
NO
_ or V
NC
_ = 1V;
R
L
= 50Ω, C
L
= 35pF,
Figure 2
V
GEN
= 0, R
GEN
= 0,
C
L
= 1nF, Figure 3
f = 1MHz, V
NO
_ = V
NC
_
= 1V
P-P
, R
L
= 50Ω,
C
L
= 5pF, Figure 5
f = 1MHz, V
COM
_ = 1V
P-P
,
R
L
= 50Ω, C
L
= 5pF, Figure 5
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
T
MIN
to T
MAX
+25°C
1
35
pC
7
ns
18
25
30
ns
35
25
ns
28
Turn-Off Time
t
OFF
Break-Before-Make (Note 7)
t
BBM
Charge Injection
Q
Off-Isolation (Note 8)
V
ISO
+25°C
-52
dB
Crosstalk (Note 9)
LOGIC INPUT (IN_)
Input Logic High
Input Logic Low
Input Leakage Current
V
CT
+25°C
-78
dB
V
IH
V
IL
I
IN
V
IN
_ = 0 or 3.6V
1
0.4
1
V
V
µA
Note 2:
The algebraic convention, where the most negative value is a minimum and the most positive value is a maximum, is
used in this data sheet.
Note 3:
-40°C specifications are guaranteed by design.
Note 4:
R
ON
and
∆R
ON
matching specifications for QFN packaged parts are guaranteed by design.
Note 5:
∆R
ON
= R
ON(MAX)
- R
ON(MIN)
.
Note 6:
Flatness is defined as the difference between the maximum and the minimum value of on-resistance as measured over the
specified analog signal ranges.
Note 7:
Guaranteed by design.
Note 8:
Off-Isolation = 20log
10
(V
COM_
/V
NO
_), V
COM_
= output, V
NO
_ = input to OFF switch.
Note 9:
Between two switches.
Note 10:
Leakage parameters are 100% tested at hot temperature and guaranteed by correlation at room.
Note 11:
Devices are guaranteed to 1 million cycles of operation. (Cycle = switch on
→
switch off
→
switch on)
Note 12:
The minimum load resistance is 8Ω.
4
_______________________________________________________________________________________
0.6Ω, Low-Voltage, Single-Supply, Dual SPDT
Analog Switch
MAX4736
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
ON-RESISTANCE vs. V
COM
MAX4736 toc01
ON-RESISTANCE
vs. V
COM
AND TEMPERATURE
1.8
1.6
1.4
V+ = 1.8V, T
A
= -40°C
V+ = 1.8V, T
A
= +25°C
V+ = 1.8V, T
A
= +85°C
V+ = 3.0V, T
A
= +85°C
MAX4736 toc02
ON/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4736 toc03
2.5
V+ = 1.6V
2.0
10,000
2.0
LEAKAGE CURRENT (pA)
1000
ON, V+ = 3.0V
OFF, V+ = 3.0V
R
ON
(Ω)
1.0
V+ = 1.8V
V+ = 2.5V
V+ = 3.0V
R
ON
(Ω)
1.5
1.2
1.0
0.8
0.6
0.4
100
OFF, V+ = 1.8V
ON, V+ = 1.8V
10
0.5
V+ = 3.6V
0
0
1
2
V
COM
(V)
3
4
0.2
0
0
V+ = 3.0V, T
A
= -40°C
0.5
1.0
V+ = 3.0V, T
A
= +25°C
1
1.5
2.0
2.5
3.0
-40
-15
10
35
60
85
V
COM
(V)
TEMPERATURE (°C)
CHARGE INJECTION vs. V
COM
MAX4736 toc04
SUPPLY CURRENT vs. SUPPLY
VOLTAGE AND TEMPERATURE
MAX4736 toc05
LOGIC-LEVEL THRESHOLD
vs. SUPPLY VOLTAGE
MAX4736 toc06
70
60
50
40
Q (pC)
30
20
10
0
-10
-20
0
0.5
1.0
1.5
V
COM
(V)
2.0
2.5
V+ = 1.8V
V+ = 3.0V
1000
100
SUPPLY CURRENT (nA)
10
1
0.1
0.01
0.001
0.0001
T
A
= -40°C
T
A
= +85°C
T
A
= +25°C
1.2
1.1
1.0
THRESHOLD (V)
0.9
0.8
FALLING
0.7
0.6
0.5
RISING
3.0
0
0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6
SUPPLY VOLTAGE (V)
1.6
2.0
2.4
2.8
3.2
3.6
SUPPLY VOLTAGE (V)
TURN-ON/OFF TIME
vs. SUPPLY VOLTAGE
MAX4736 toc07
TURN-ON/OFF TIMES
vs. TEMPERATURE
t
ON
, V+ = 1.8V
MAX4736 toc08
30
25
20
t
OFF
15
10
5
0
1.6
2.0
2.4
2.8
3.2
t
ON
30
25
20
15
10
5
0
t
ON
/t
OFF
(ns)
t
ON
/t
OFF
(ns)
t
OFF
, V+ = 1.8V
t
ON
, V+ = 3.0V
t
OFF
, V+ = 3.0V
3.6
-40
-15
10
35
60
85
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
_______________________________________________________________________________________
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
