OP with low offset voltage in single power supply VS+ 24V/ VS- 0V

Jerry Hsueh

Other Parts Discussed in Thread: OPA172, TLV2172

Now we are using AD8065 in single power supply VS+ 24V/ VS- 0V, the output voltage is less than 5mV.

Do you have any suggestion for OP which can replace AD8065 with low offset voltage in single power supply VS+ 24V/ VS- 0V application?

thank you

over 6 years ago

0 Jacob Freet over 6 years ago

TI__Expert 7875 points

Hi,

Can you tell me what frequency you need the amplifier to operate up to and what the total output voltage swing is?

Regards,

0 Jerry Hsueh over 6 years ago in reply to Jacob Freet

Expert 2730 points

Hi Jacob,

The total output voltage swing is 0~10V, and operate frequency is below 1Hz.
Max input voltage can supply to 50V.
thank you

Jerry

0 Jacob Freet over 6 years ago in reply to Jerry Hsueh

TI__Expert 7875 points

Hi Jerry,

If the operating frequency is below 1 Hz, is there any reason you need a high speed amplifier? We have many more high voltage offerings from our precision and general purpose amplifiers that could work for this application if speed is not necessary.

Regards,

0 Jerry Hsueh over 6 years ago in reply to Jacob Freet

Expert 2730 points

Hi Jacob,

Yes, we don't need a high speed amplifier. Do you have any suggestion? which OP is better.
Thank you

Jerry

0 Jacob Freet over 6 years ago in reply to Jerry Hsueh

TI__Expert 7875 points

Hi Jerry,

I've assigned this to our general purpose amplifiers group that should be able to help you further.

Regards,

0 Paul Goedeke over 6 years ago in reply to Jacob Freet

TI__Mastermind 30600 points

Hi Jerry,

Based on the requirements you've provided, take a look at the OPA172. It can support up to 36V on a single supply, has more than enough bandwidth for your use and low offset voltage of +/-0.2mV.

Let me know if that will meet your needs. If you don't need an offset voltage quite that low, you could also look at the TLV2172.

Thanks,
Paul

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OP with low offset voltage in single power supply VS+ 24V/ VS- 0V