Description
LMP8640/LMP8640HV Precision High Voltage Current Sense Amplifier September 7, 2010 LMP8640/LMP8640HV Precision High Voltage Current Sense Amplifier .
The LMP8640 and the LMP8640HV are precision current sense amplifiers that detect small differential voltages across a sense resistor in the presence o.
Features
* Typical values, TA = 25°C
* High common-mode voltage range -2V to 42V
* LMP8640 -2V to 76V
* LMP8640HV 2.7V to 12V
* Supply voltage range 20V/V; 50V/V; 100V/V
* Gain options 0.25%
* Max gain error 900µV
* Low offset voltage 13 μA
* Input bias current 85 dB
Applications
* that demand accuracy over temperature. The LMP8640 and LMP8640HV come out with three different fixed gains 20V/V, 50V/V, 100V/V ensuring a gain accuracy as low as 0.25%. The output is buffered in order to provide low output impedance. This high side current sense amplifier is ideal for sensing and m
