GENERAL DESCRIPTION

The AD8538/AD8539 are very high precision amplifiers featuring extremely low offset voltage, low input bias current, and low power consumption. The supply current is less than 215 μA maximujm per amplifier at 5.0 V. Operation is fully specified from 2.7 V to 5.0 V single supply (±1.35 V to ±2.5 V dual supply).

FEATURES

Low offset voltage: 13 μV maximum

Input offset drift: 0.03 μV/°C

Single-supply operation: 2.7 V to 5.5 V

High gain, CMRR, and PSRR

Low input bias current: 25 pA

Low supply current: 180 μA

APPLICATIONS

Mobile communications

Portable instrumentation

Battery-powered devices

Sensor interfaces

Temperature measurement

Electronic scales