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MicroOhm Meter Input Stage.

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maheshkuruganti

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Hi,
I am designing a µOhm Meter with 1uΩ in 1mΩ resolution using a 1A Current Source and a LTC2400 as the Voltage Measuring Device.What I want to know is how to design an opamp front end with low error.I need a gain of about 4.

Added after 3 hours 18 minutes:

I have designed the following Analog Front End.Can anyone tell me if it has any problems.

**broken link removed**
 

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