OPA322: The difference between OPA322 and OPA320

diverger

Part Number: OPA322
Other Parts Discussed in Thread: OPA320

I compared the two. The main difference is OPA320 has lower offset. And OPA322 have quad version. And are there any other differences I missed?

Thanks.

over 3 years ago

0 Jerry Madalvanos over 3 years ago

TI__Mastermind 22531 points

Hello,

Using TI's SELGUIDE, there were a couple other differences. OPA322 has higher bias current, higher supply current, and slightly lower open loop gain.

Best,
Jerry

0 Former Member over 3 years ago

Hello diverger,

Just to add to what Jerry said, the OPA320 also has a slightly better offset drift across temperature specification. The OPA322 comes in single, dual, and quad packages while the OPA320 looks to only be available in the dual package.

Regards,

Daniel

0 diverger over 3 years ago in reply to Former Member

Expert 1175 points

It seems OPA320 is better in almost every aspect, except without the quad version.

0 Jerry Madalvanos over 3 years ago in reply to diverger

TI__Mastermind 22531 points

From a performance perspective, yes the OPA320 outperforms the OPA322. Even though OPA322 has a lower performance, it is priced lower than the OPA320. So if you can sacrifice some performance for cost, OPA322 is a strong substitute in a cost-conscious design.

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OPA322: The difference between OPA322 and OPA320