Datasheet
1 Ω Typical On Resistance, ±5 V, +12 V, 
+5 V, and +3.3 V Dual SPDT Switches
Data Sheet 
ADG1636
Rev. B  Document Feedback 
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FEATURES 
1 Ω typical on resistance 
0.2 Ω on resistance flatness 
±3.3 V to ±8 V dual supply operation 
3.3 V to 16 V single supply operation 
No V
L
 supply required 
3 V logic-compatible inputs 
Rail-to-rail operation 
Continuous current per channel 
LFCSP: 385 mA 
TSSOP: 238 mA 
16-lead TSSOP and 16-lead, 4 mm × 4 mm LFCSP 
APPLICATIONS 
Communication systems 
Medical systems 
Audio signal routing 
Video signal routing 
Automatic test equipment 
Data acquisition systems 
Battery-powered systems 
Sample-and-hold systems 
Relay replacements 
FUNCTIONAL BLOCK DIAGRAMS 
07983-001
ADG1636
D1
D2
S2B
S2A
IN2
IN1
S1B
S1A
NOTES
1. SWITCHES SHOWN FOR A LOGIC 1 INPUT.
Figure 1. 16-Lead TSSOP 
07983-002
ADG1636
IN1 IN2
EN
S1B
D1
S1A
S2B
LOGIC
D2
S2A
NOTES
1. SWITCHES SHOWN FOR A 1 INPUT LOGIC.
Figure 2. 16-Lead LFCSP 
GENERAL DESCRIPTION 
The ADG1636 is a monolithic CMOS device containing two 
independently selectable single-pole/double-throw (SPDT) 
switches. An EN input is used to enable or disable the device. 
When disabled, all channels are switched off. Each switch conducts 
equally well in both directions when on and has an input signal 
range that extends to the supplies. In the off condition, signal 
levels up to the supplies are blocked. Both switches exhibit 
break-before-make switching action for use in multiplexer 
applications. 
The ultralow on resistance of these switches make them ideal 
solutions for data acquisition and gain switching applications where 
low on resistance and distortion is critical. The on resistance profile 
is very flat over the full analog input range, ensuring excellent 
linearity and low distortion when switching audio signals. 
The CMOS construction ensures ultralow power dissipation, 
making the devices ideally suited for portable and battery-
powered instruments. 
PRODUCT HIGHLIGHTS 
1.  1.6 Ω maximum on resistance over temperature. 
2.  Minimum distortion: THD + N = 0.007%. 
3.  3 V logic-compatible digital inputs: V
INH
 = 2.0 V, V
INL
 = 0.8 V. 
4.  No V
L
 logic power supply required. 
5.  Ultralow power dissipation: <16 nW. 
6.  16-lead TSSOP and 16-lead 4 mm × 4 mm LFCSP. 










