OPA2132: OPA2132U

DRUILHE yvan

Part Number: OPA2132
Other Parts Discussed in Thread: OPA2156, OPA1656

Hello

Can you give me an equivalent to the AOP OPA2132U that we are unable to supply, on the site you recommend OPA2156ID which is a CMOS amplifier.

Thank you for your help.

over 1 year ago

0 Michael Hartshorne over 1 year ago

TI__Genius 12335 points

Hello,

For a JFET input device (meaning very low input bias current and also very low 1/f noise), you can try OPA1642 - it is very similar to OPA2132 and also comes in the SOIC package.

For lower wideband noise and overall more bandwidth, the OPA1656 is also a good choice. It is not a JFET input, but a MOSFET input. This means the 1/f noise is not quite as low but the wideband noise and overall distortion is better. This is similar to OPA2156 but optimized for audio.

Let us know if either of these can work.

Best Regards,
Mike

0 DRUILHE yvan over 1 year ago in reply to Michael Hartshorne

Intellectual 500 points

Hello,
The OPA2132U give a max input offset voltage of 0.5mV and the OPA1656 3.5mV.

That's the only thing that bothers me when I compare the 2 refs.

Best Regards

0 Michael Hartshorne over 1 year ago in reply to DRUILHE yvan

TI__Genius 12335 points

Hi,

OK yes I was thinking of the lower grade OPA2132, which has Vos of 2 mV. But for lower offset, then indeed the OPA2156 is a good choice. For JFET input devices, the OPA2140 is the best cross.

Best Regards,
Mike

0 DRUILHE yvan over 1 year ago in reply to Michael Hartshorne

Intellectual 500 points

OK for OPA2140AID.

Thank you for your help

Best Regards

Audio

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OPA2132: OPA2132U