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LM324: LMx24 and LM324K datasheet

Kailyn Chen

Genius 9560 points

Part Number: LM324

Hello,

About the LM324 datasheet, the test conditions of input offset voltage, input offset current and input bias current are all Vo=1.4V.What does the Vo=1.4V mean？

While the Vos and Iib of LM324B and LM324BA have no this conditions. Could you please help to explain?

Best regards

Kailyn

over 3 years ago

0 Gerasimos Madalvanos over 3 years ago

TI__Mastermind 33573 points

Kailyn,

The table is specifying the output voltage condition when tested. The Output voltage was 1.4V. In the B version the input and output conditions are specified at the top of the EC table.

Best,
Jerry

0 Kailyn Chen over 3 years ago in reply to Gerasimos Madalvanos

TI__Genius 9560 points

Hi Jerry,

Thank you for your reply, but why the output voltage is to set 1.4Ｖ instead of other voltage?

Best regards

Kailyn

+1 kai klaas69 over 3 years ago in reply to Kailyn Chen

Guru 140200 points

Hi Kailyn,

this has already been answered:

https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/434515/lm2903-the-measuring-condition-of-the-input-bias-current

And that it is 1.4V can have to do with what has been discussed here:

https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/974375/lm2903b-q1-test-circuit-for-propagation-delay-time

https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/993819/lm193-doubt-about-electrical-characteristics-for-lm193-lm293-and-lm393

Kai