OPA1678: NJM2794 replacement

JH Shin

Guru 11450 points

Part Number: OPA1678
Other Parts Discussed in Thread: INA1650

Tool/software:

Hello,

Could you please recommend a suitable replacement from TI for the NJM2794 below?

https://www.nisshinbo-microdevices.co.jp/en/pdf/datasheet/NJM2794_E.pdf

Thank you.

over 1 year ago

0 Chris Featherstone over 1 year ago

TI__Mastermind 26305 points

Hello,

You may consider the INA1650. In the product datasheet we have a section discussing ground loop noise reduction. The CMRR performance is far better on the INA1650 vs the NJM2794 as well. Below is the simplified schematic. There is an internal mid supply driver as a feature if needed.

https://www.ti.com/product/INA1650

Best Regards,

Chris Featherstone

Audio

Audio forum

OPA1678: NJM2794 replacement