Datasheet
1 Ω On Resistance, ±15 V/+12 V/±5 V 
iCMOS SPST Switches
ADG1401/ADG1402
Rev. 0 
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FEATURES 
1 Ω on resistance 
0.2 Ω on resistance flatness 
Up to 430 mA continuous current 
Fully specified at +12 V, ±15 V, ±5 V 
No V
L
 supply required 
3 V logic-compatible inputs 
Rail-to-rail operation 
8-lead MSOP and 8-lead, 3 mm × 2 mm LFCSP packages 
APPLICATIONS 
Automatic test equipment 
Data acquisition systems 
Battery-powered systems 
Sample-and-hold systems 
Audio signal routing 
Video signal routing 
Communication systems 
Relay replacements 
FUNCTIONAL BLOCK DIAGRAM 
D
IN
S
ADG1401
SWITCHES SHOWN FOR A LOGIC 1 INPUT
08486-001
Figure 1. ADG1401 Functional Block Diagram 
D
IN
S
ADG1402
SWITCHES SHOWN FOR A LOGIC 1 INPUT
08486-002
Figure 2. ADG1402 Functional Block Diagram 
GENERAL DESCRIPTION 
The ADG1401/ADG1402 contain a single-pole/single-throw 
(SPST) switch. Figure 1 shows that with a logic input of 1, the 
switch of the ADG1401 is closed and that of the ADG1402 is 
open. 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. 
The iCMOS® (industrial CMOS) modular manufacturing process 
combines high voltage, complementary metal-oxide semiconductor 
(CMOS) and bipolar technologies. It enables the development 
of a wide range of high performance analog ICs capable of 33 V 
operation in a footprint that no other generation of high voltage 
parts has achieved. Unlike analog ICs using conventional CMOS 
processes, iCMOS components can tolerate high supply voltages 
while providing increased performance, dramatically lower 
power consumption, and a reduced package size. 
The on resistance profile is very flat over the full analog input 
range ensuring excellent linearity and low distortion when 
switching audio signals. The iCMOS construction ensures 
ultralow power dissipation, making the part ideally suited for 
portable and battery-powered instruments. 
PRODUCT HIGHLIGHTS 
1.  1.3 Ω maximum on resistance at 25°C. 
2.  Minimum distortion. 
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.  8-lead MSOP and 8-lead, 3 mm × 2 mm LFCSP packages. 










