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LT1991 - Precision / 100uA Gain Selectable Amplifier

General Description

The LT®1991 combines a precision operational amplifier with eight precision resistors to form a one-chip solution for accurately amplifying voltages.

13 to 14 with a gain accuracy of 0.04% can be achieved using no external components.

Key Features

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LT1991 Precision, 100µA Gain Selectable Amplifier www.DataSheet4U.com FEATURES n n DESCRIPTION The LT®1991 combines a precision operational amplifier with eight precision resistors to form a one-chip solution for accurately amplifying voltages. Gains from –13 to 14 with a gain accuracy of 0.04% can be achieved using no external components. The device is particularly well suited for use as a difference amplifier, where the excellent resistor matching results in a common mode rejection ratio of greater than 75dB. The amplifier features a 50μV maximum input offset voltage and a gain bandwidth product of 560kHz. The device operates from any supply voltage from 2.7V to 36V and draws only 100μA supply current on a 5V supply. The output swings to within 40mV of either supply rail.