ADG621

PRODUCTION

CMOS ±5 V/+5 V, 4 Ω Dual SPST Switch

Analog Devices ADG621 Product Info

10 February 2026 8

Features

6.6 Ω (maximum) on resistance
0.9 Ω (typical) on resistance flatness
2.7 V to 5.5 V single supply
±2.7 V to ±5.5 V dual supply

Rail-to-rail operation
10-lead MSOP package
Typical power consumption: <0.01 µW
TTL-/CMOS-compatible inputs

Part details & applications

The ADG621 is a monolithic, CMOS, single-pole, single-throw (SPST) switch. The ADG621 conducts equally well in both directions when on. The ADG621 contains two independent switches. The ADG621 is a normally open switch.

The ADG621 offers low on resistance of 4 Ω, which is matched to within 0.25 Ω between channels. The ADG621 also provides low power dissipation yet offers high switching speeds.

All digital inputs have 0.8 V to 2.4 V logic thresholds, ensuring TTL/CMOS compatibility when using single +5 V or dual ±5 V supplies. The ADG621 is available in a 10-lead MSOP package.

PRODUCT HIGHLIGHTS

Low on resistance, R_ON (4 Ω typical).
Dual ±2.7 V to ±5.5 V or single +2.7 V to +5.5 V.
Low power dissipation; CMOS construction ensures low power dissipation.
Tiny 10-lead MSOP package.

APPLICATIONS

Automatic test equipment
Power routing
Communication systems
Data acquisition systems
Sample-and-hold systems
Avionics
Relay replacements
Battery-powered systems

Subscribe to Welllinkchips !

Your Name

* Email