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Looking for ideas to DIY uA Meter (shunt amplifier)
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001:
Hi

What the best way to build amplifier x10 x100 for shunt?

Thanx
001:
Nobody build some similar unit?  :-//
TheUnnamedNewbie:
If you want to make a very low current meter, or a meter with very low burden voltage, usually a TIA (transimpedance amplifier) is used.

For a shunt meter - what is wrong with a standard opamp in 10x or 100x feedback?
001:

--- Quote from: TheUnnamedNewbie on December 12, 2018, 12:15:24 pm ---For a shunt meter - what is wrong with a standard opamp in 10x or 100x feedback?

--- End quote ---

I understand main idea of basic opamp usage
But I dont know how to choose values range and opamp type too
Can You link some similar project? Thanx
Gyro:

--- Quote from: TheUnnamedNewbie on December 12, 2018, 12:15:24 pm ---If you want to make a very low current meter, or a meter with very low burden voltage, usually a TIA (transimpedance amplifier) is used.

--- End quote ---

Yes, start with a Picoammeter design and degrade it.  ;)

https://www.eevblog.com/forum/projects/picoammeter-design/
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