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Looking for 2 channel version of INA125P with through hole mount

Other Parts Discussed in Thread: INA2331, INA125, INA2126


I'm started a project involving 2 load cells and using this blog as a guide.

It uses the INA125P and a single load cell to read values into a microcontroller.

The INA2331 looks to me ( a novice) like an alternative chip with the same functionality and with 2 channels.

Is it? But it also looks like the INA2331 doesn't come packaged as a through-hole component. So maybe there are better alternatives?



  • Hello Skippy,

    The INA125 is the only instrumentation amplifier that has an integrated bridge reference. It only comes as a single device.

    The only dual instrumentation amplifier that comes in a DIP, or through-hole, package is the INA2126.

    If the requirement for DIP packages is based on prototyping, you may consider using a DIP adapter board. This would allow you to evaluate other dual instrumentation amplifier like the INA2331.

    Note that the INA2331 has a supply voltage range from 2.7V to 5.5V. The INA125 and INA2126 have supply voltage ranges from 2.7V to 36V.