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LMV321 vs LM321LV: Output voltage range response

Genius 14659 points
Other Parts Discussed in Thread: LM321LV, LMV321, LM321

Hi Experts,

We have this question about the specified output voltage range of the LM321LV series op-amps.

The datasheet states that the output voltage is limited to the positive rail voltage minus 1V. According to fig. 6 this would also apply for the no-load case.

When using this op-amps with 3.3V supply voltage, client noticed that the output has no problems to go all the way up to the positive rail. When they replace it with LMV321 which is R2R specified, there is no difference between the 2.

Why is the output voltage of the LM321LV specified to be limited?

Let us shed light on this together with my client.

Thank you for your support.

Archie A.