OPA140: Vos Long-Term Stability

Richard Elmquist

Mastermind 45250 points

Part Number: OPA140
Other Parts Discussed in Thread: OPA192

Do we have any data/ information on the Long-Term Input Offset Voltage Stability for the OPA140?

Thanks for your help with this!

Richard Elmquist

over 7 years ago

0 Marek Lis over 6 years ago

TI__Guru 60610 points

Richard,

According to our HTOL data for OPA140, the life time shift distribution in the input offset voltage, Vos, had a mean of -6uV with the standard deviation of 25uV – the shift is an equivalent of what one may expect after 10 years of operation at room temperature.

0 Richard Elmquist over 6 years ago in reply to Marek Lis

TI__Mastermind 45250 points

Marek,

Thanks so much for your help!

Is the information also available for the OPA192?

Thanks for your help with this!

Richard Elmquist

0 Marek Lis over 6 years ago in reply to Richard Elmquist

TI__Guru 60610 points

Richard,

The overall criteria of passing the HTOL lifetest for any of our product is that the Vos shift cannot be greater than the maximum or minimum datasheet specification. Thus in case of OPA192, this means that the input offset voltage shift at 25 deg C over ten-year expected life of the product is smaller than +/-25uV.

0 Richard Elmquist over 6 years ago in reply to Marek Lis

TI__Mastermind 45250 points

Marek,

Thanks again for your quick response!

I will let you know if the customer has any further questions.

Richard Elmquist

Amplifiers

Amplifiers forum

OPA140: Vos Long-Term Stability