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Differential Amplifier

Question asked by SIVA_407 on Apr 2, 2018
Latest reply on Apr 3, 2018 by krisf

Hi,

In our design we are using differential amplifier( AD629BRZ) but it is behaving some what different.

my application is measuring current,for your reference i am adding schematics

my current is 48mA 

I have measured voltage across the resistor is 4.8mV,but output of differential amplifier is 4.4mV,there is a drift of 0.4mV 

why this much of variation in input and output?

I want exact  input voltage in output what i will do ,can you please guide how to resolve this issue

Thanks in advance..

Siva,

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