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INA188: Alternatives INA821/INA818

Part Number: INA188
Other Parts Discussed in Thread: INA821, INA818,

Hi all,

I'm trying to come up with a suitable alternative for the current sense chain of a source measurement unit. I originally selected the INA818 and INA821 as suitable technical options, however, the application is sensitive to country of origin which makes these two parts non-ideal. It's a precise measurement application so minimizing gain/offset drift would be important and having a low input bias current. I recently came across the INA188, and at first glance it seems like it could be a suitable alternative. I'm looking for some help figuring out the tradeoffs/advantages to using the INA188, or if there is a more comparable part to either the INA821/818.

Thank you! Any help would be greatly appreciated.