LMP8645 Datasheet (National) - Precision High Voltage Current Sense Amplifier

LMP8645, Precision High Voltage Current Sense Amplifier

The LMP8645 and the LMP8645HV are precision current sense amplifiers that detect small differential voltages across a sense resistor in the presence of high input common mode voltages with a supply voltage range from 2.7V to 12V.

The LMP8645 accepts input signals with common mode voltage range from

LMP8645 Features

* Typical values, TA = 25°C

* High common-mode voltage range -2V to 42V

* LMP8645 -2V to 76V

* LMP8645HV 2.7V to 12V

* Supply voltage range

* Gain configurable with a single resistor

* Max variable gain accuracy (with external resistor) 2.0% 200 μA/V

* Transconducta