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TLV9061: Can it be used with a supply voltage of 1.7V?

YOSUKE INOUE
Prodigy 30 points
Part Number: TLV9061
Other Parts Discussed in Thread: OPA1671, OPA310

To whom it may concern,

I have a question about TLV9061.

Can it be used with a supply voltage of 1.7V?

Could you please let us know if you have any concern about the above?

We are considering the possibility of using TLV9061 with a 1.8V power supply.

The 1.8V power supply output voltage range is 1.7 - 1.9V.

But, the recommended power supply voltage listed in the datasheet is 1.8 - 5.5V.

 

I look forward to hearing from you

  • +1
    Guru 271170 points

    The specified minimum is 1.8 V. Below 1.8 V, the electrical characteristics are no longer guaranteed. If this device had been designed for a nominal 1.8 V supply, it would have a specified minimum of 1.7 V or 1.6 V.

    If you cannot use a higher supply voltage, consider another opamp like the OPA310 (which is slower) or OPA1671.

  • +1 in reply to Clemens Ladisch
    TI__Mastermind 23170 points

    Hello Inoue-san, 

    Clemens is correct. Once the TLV9061 supplies goes below the rated 1.8V supplies, we can't guarantee it will behave as intended or even have function like an op amp! 

    I also like Clemens suggested alternative devices, though the OPA310 would be the better of the two if you are expected to operate at a nominal 1.7V supply range since power supplies can dip below the intended supply range. This dip in the supply voltage could cause problems for the OPA1671 since it's minimum is 1.7V.

    Best Regards, 

    Robert Clifton