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MAX4736
Technical data
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MAXIM MAX4736 Technical data

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 (tON= 25ns, t
= 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 fea­tures low 0.6Ω on-resistance (RON), with 0.1Ω R
ON
matching and 0.05Ω RONflatness. 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 12­pin TQFN-EP (3mm x 3mm), 10-pin µMAX and 10 pin µDFN (2mm x 2mm) packages.
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
Features
♦ Low R
ON
0.6Ω (3V Supply)
1.5Ω (1.8V Supply)
♦ 0.1Ω max RONFlatness (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
MAX4736
0.6Ω, Low-Voltage, Single-Supply, Dual SPDT Analog Switch
________________________________________________________________ Maxim Integrated Products 1
TOP VIEW
MAX4736
MAX4736
IN_
NO_
NC_
0
OFF
ON
1
ON
OFF
SWITCHES SHOWN FOR LOGIC 0 INPUT
1
2
3
4
5
10
9
8
7
6
NO2
GND
NO1
IN1
µMAX/µDFN
IN2
NC2
V+
NC1
COM1
COM2
12
IN111COM110N.C.
9 NC1
8 V+
7 NC2
4
IN25COM26N.C.
1NO1
2GND
3NO2
MAX4736
TQFN
NOTE: CONNECT EXPOSED PAD ON TQFN AND µDFN TO GND.
Pin Configurations/Functional Diagrams/Truth Table
Ordering Information
Note: All devices operate over the -40°C to +55°C operating temperature range.
*EP = Exposed pad.
19-2382; Rev 2; 12/06
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.
PART PIN-PACKAGE PKG CODE
MAX4736EUB 10 µMAX U10-2
MAX4736ETC
T1233-1
MAX4736ELB 10 µDFN L1022-1
12 Thin QFN-EP*
MAX4736
0.6Ω, Low-Voltage, Single-Supply, Dual SPDT Analog Switch
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—Single 3V Supply
(V+ = 2.7V to 4.2V, VIH= 1.4V, VIL= 0.5V, TA= T
MIN
to T
MAX
, unless otherwise specified. Typical values are at V+ = 3.0V,
T
A
= +25°C.) (Notes 2, 3)
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.
Note 1: Signals on COM_, NO_, or NC_ exceeding V+ or GND are clamped by internal diodes. Limit forward current to maximum
current rating.
(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
PARAMETER
UNITS
ANALOG SWITCH
Analog Signal Range
VNO_,
V
NC
_
0V+V
+25°C 0.6 0.8
On-Resistance (Note 4) R
ON
V + = 2.7V , I
C OM
_ = 100m A;
V
NO
_ or VNC_ = 1.5V
1
Ω
+25°C 0.1 0.2
On-Resistance Match Between Channels (Notes 4, 5)
∆R
ON
V + = 2.7V , I
C OM
_ = 100mA;
V
NO
_ or VNC_ = 1.5V
0.3
Ω
+25°C
0.1
On-Resistance Flatness (Note 6)
)
V+ = 2.7V, I
COM
_ = 100m A;
0.2
Ω
+25°C -1
+1
NO_ or NC_ Off-Leakage Current (Note 10)
),
)
V + = 3.6V , V
C OM
_ = 0.3V, 3.3V;
V
NO
_ or VNC_ = 3.3V, 0.3V
-5 +5
nA
+25°C -2
+2
COM_ On-Leakage Current (Note 10)
)
V+ = 3.6V, V
C OM
_ = 0.3V, 3.3V;
V
NO
_ or VNC_ = 0.3V, 3.3V, or
floating
-10
nA
SYMBOL CONDITIONS T
A
MIN TYP MAX
V
_,
COM
T
to T
MIN
MAX
T
to T
MIN
MAX
0.05
R
FLAT(ON
VNO_ or VNC_ = 1V, 1.5V, 2V
INO_
(OFF
INC_
(OFF
I
COM_(ON
T
to T
MIN
MAX
T
to T
MIN
MAX
±0.002
±0.002
T
MIN
to T
MAX
+10
MAX4736
0.6Ω, Low-Voltage, Single-Supply, Dual SPDT Analog Switch
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—Single 3V Supply (continued)
(V+ = 2.7V to 4.2V, VIH= 1.4V, VIL= 0.5V, TA= 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
T
A
MIN
TYP
MAX
UNITS
SWITCH DYNAMIC CHARACTERISTICS
+25°C 20 25
Turn-On Time t
ON
VNO_, VNC_ = 1.5V; R
L
= 50Ω, CL = 35pF,
Figure 1
30
ns
+25°C 15 20
Turn-Off Time t
OFF
VNO_, VNC_ = 1.5V; R
L
= 50Ω, CL = 35pF,
Figure 1
25
ns
+25°C 5
Break-Before-Make (Note 7) t
BBM
VNO_, VNC_ = 1.5V; R
L
= 50Ω, CL = 35pF,
Figure 2
1
ns
Charge Injection Q
V
GEN
= 0, R
GEN
= 0,
C
L
= 1.0nF, Figure 3
+25°C 60 pC
NO_ or NC_ Off-Capacitance C
OFF
f = 1MHz, Figure 4 +25°C 33 pF
COM_ Off-Capacitance
)
f = 1MHz, Figure 4 +25°C 60 pF
COM_ On-Capacitance
)
f = 1MHz, Figure 4 +25°C 85 pF
-3dB On-Channel Bandwidth BW
Signal = 0, R
IN
= R
OUT
=
50Ω, C
L
= 5pF, Figure 5
130
MHz
Off-Isolation (Note 8) V
ISO
50Ω, C L = 5p F, Fi g ur e 5
+25°C -52 dB
Crosstalk (Note 9) V
CT
50Ω, C L = 5p F, Fi g ur e 5
+25°C -78 dB
Total Harmonic Distortion THD
f = 20Hz to 20kHz, V
COM
_ =
2V
P-P
, RL = 32Ω
+25°C
%
LOGIC INPUT (A_, IN_)
Input Logic High V
IH
1.4 V
Input Logic Low V
IL
0.5 V
Input Leakage Current I
IN
V
IN_
= 0 or 3.6V -1
+1 µA
POWER SUPPLY
Power-Supply Range V+ 1.6 3.6 V
Positive Supply Current I+
V+ = 3.6V, V
IN
_ = 0 or V+,
all channels on or off
1µA
C
COM(OFF
C
COM(ON
f = 1M H z, V
f = 1M H z, V
T
to T
MIN
MAX
T
to T
MIN
MAX
T
to T
MIN
MAX
COM
COM
_ = 1V
_ = 1V
, RL =
P - P
, RL =
P - P
0.018
+0.005
0.006
MAX4736
0.6Ω, Low-Voltage, Single-Supply, Dual SPDT Analog Switch
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—Single 1.8V Supply
(V+ = 1.8V, VIH= 1.0V, VIL= 0.4V, TA= T
MIN
to T
MAX
, unless otherwise specified. Typical values are at TA= +25°C.) (Notes 2, 3)
PARAMETER
CONDITIONS T
A
UNITS
ANALOG SWITCH
Analog Signal Range
0V+V
+25°C 1.5 2
On-Resistance R
ON
I
COM
_ = 10mA;
V
NO
_ or VNC_ = 1V
3
Ω
SWITCH DYNAMIC CHARACTERISTICS
+25°C 25 30
Turn-On Time t
ON
VNO_ or VNC_ = 1V; RL = 50Ω, C
L
= 35pF,
Figure 1
35
ns
+25°C 18 25
Turn-Off Time t
OFF
VNO_ or VNC_ = 1V; R
L
= 50Ω, CL = 35pF,
Figure 1
28
ns
+25°C 7
Break-Before-Make (Note 7) t
BBM
VNO_ or VNC_ = 1V; R
L
= 50Ω, CL = 35pF,
Figure 2
1
ns
Charge Injection Q
V
GEN
= 0, R
GEN
= 0,
C
L
= 1nF, Figure 3
+25°C 35 pC
Off-Isolation (Note 8) V
ISO
f = 1M H z, V
N O
_ = VNC_
= 1V
P - P
, RL = 50Ω,
C
L
= 5p F, Fi g ur e 5
+25°C -52 dB
Crosstalk (Note 9) V
CT
f = 1M H z, V
C OM
_ = 1V
P - P
,
+25°C -78 dB
LOGIC INPUT (IN_)
Input Logic High V
IH
1V
Input Logic Low V
IL
0.4 V
Input Leakage Current I
IN
VIN_ = 0 or 3.6V 1 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 ∆RONmatching 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(VCOM_/VNO
_), V
COM_
= output, VNO_ = 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.
SYMBOL
V
_,
COM
_,
V
NO
V
_
NC
MIN TYP MAX
RL = 50Ω, C L = 5p F, Fi g ur e 5
T
to T
MIN
MAX
T
to T
MIN
MAX
T
to T
MIN
MAX
T
to T
MIN
MAX
MAX4736
0.6Ω, Low-Voltage, Single-Supply, Dual SPDT Analog Switch
_______________________________________________________________________________________ 5
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
ON-RESISTANCE vs. V
COM
MAX4736 toc01
V
COM
(V)
R
ON
(Ω)
0.5
1.0
1.5
2.0
2.5
0
32104
V+ = 3.0V
V+ = 3.6V
V+ = 1.6V
V+ = 1.8V
V+ = 2.5V
MAX4736 toc02
V
COM
(V)
R
ON
(Ω)
2.52.01.51.00.5
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
0 3.0
ON-RESISTANCE
vs. V
COM
AND TEMPERATURE
V+ = 1.8V, TA = -40°C
V+ = 1.8V, TA = +85°C
V+ = 3.0V, TA = +85°C
V+ = 1.8V, TA = +25°C
V+ = 3.0V, TA = +25°C
V+ = 3.0V, TA = -40°C
ON/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4736 toc03
TEMPERATURE (°C)
LEAKAGE CURRENT (pA)
603510-15
10
100
1000
10,000
1
-40 85
OFF, V+ = 3.0V
ON, V+ = 3.0V
ON, V+ = 1.8V
OFF, V+ = 1.8V
-20
0
-10
30
20
10
60
50
40
70
0 1.00.5 2.0 2.5 3.0
CHARGE INJECTION vs. V
COM
MAX4736 toc04
V
COM
(V)
Q (pC)
V+ = 3.0V
V+ = 1.8V
1.5
1000
0.0001 0 0.4 2.0 2.8
SUPPLY CURRENT vs. SUPPLY
VOLTAGE AND TEMPERATURE
0.001
1
100
MAX4736 toc05
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (nA)
1.6
3.6
10
0.1
0.01
0.8
1.2
3.2
2.4
TA = -40°C
TA = +25°C
TA = +85°C
0.5
0.7
0.6
1.0
0.9
0.8
1.1
1.2
2.42.0 2.8 3.2 3.6
LOGIC-LEVEL THRESHOLD
vs. SUPPLY VOLTAGE
MAX4736 toc06
SUPPLY VOLTAGE (V)
THRESHOLD (V)
1.6
RISING
FALLING
TURN-ON/OFF TIME
vs. SUPPLY VOLTAGE
MAX4736 toc07
SUPPLY VOLTAGE (V)
t
ON
/t
OFF
(ns)
3.22.82.42.0
5
10
15
20
25
30
0
1.6 3.6
t
OFF
t
ON
TURN-ON/OFF TIMES
vs. TEMPERATURE
MAX4736 toc08
TEMPERATURE (°C)
t
ON
/t
OFF
(ns)
603510-15
5
10
15
20
25
30
0
-40 85
tON, V+ = 1.8V
t
OFF
, V+ = 1.8V
tON, V+ = 3.0V
t
OFF
, V+ = 3.0V
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