LT1990 Datasheet (Linear Technology)

LT1990, Difference Amplifier

LT1990 ±250V Input Range G = 1, 10, Micropower, Difference Amplifier DESCRIPTIO The LT®1990 is a micropower precision difference amplifier with a very high common mode input voltage range.

It has pin selectable gains of 1 or 10.

The LT1990 operates over a ±250V common mode voltage range on a ±15V supply.

The inputs are fault protected from common mode voltage transients up to ±350V and differential voltages up to ±500V.

The LT1990 is ideally suited for both high side and low side current or volt

LT1990 Features

* Battery Cell Voltage Monitoring High Voltage Current Sensing Signal Acquisition in Noisy Environments Input Protection Fault Protected Front Ends Level Sensing Isolation TYPICAL APPLICATIO +VSOURCE Full-Bridge Load Current Monitor 5V LT1990 900k 7 2 1M 10