**Part Number:**INA210

**Other Parts Discussed in Thread:**INA190

Hi,

Good Day. I have a customer who is working with current sense amplifier. Please see below the two queries of the customer for your reference. Thank you very much.

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I need your help in choosing the best chip to measure 10s of nanoamps as accurate as possible.

I watched your full series of current sense amplifiers and checked.

https://www.ti.com/amplifier-circuit/current-sense/overview.html

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The INA210 shunt resistor has high value as 50 Ohms.

Help me calculate the error curves, maximum shunt allowed to enter is 100 mOhm but this is not suitable for my design.

I need to use 50 Ohms, it is one of your chips that amplifies shunt resistor voltages to get currents.

But as per the calculator provides the maximum resistor allowed is 100 mOhm

Is it safe to exceed that number ?

Will it cause any problems if I use 50 Ohms as shunt resistor?

INA210 is a device that measures currents.

In order to be able to use it, I believe I should increase the resistance value.

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Best Regards,

Ray Vincent