TLV9302: The rail to rail output Op Amp can output 0 V?

Kevin Zeng

Part Number: TLV9302
Other Parts Discussed in Thread: LM7705

Hi Team,

TLV9302 is rail-to-rail output op amp. The datasheet note that the output is no real 0. So I want to confirm from you this output typical value is op amp min output?

over 3 years ago

+1 Ron Michallick over 3 years ago

TI__Guru**** 170716 points

Hello Kevin,

Answer is yes. The table is more clear than most data sheets. Is the problem that true zero is unwanted or wanted?

0 Kevin Zeng over 3 years ago in reply to Ron Michallick

TI__Expert 3085 points

Yes, I need to the true zero. May be I need to use negative voltage to achieve it.

0 Clemens Ladisch over 3 years ago in reply to Kevin Zeng

Guru 321680 points

If you have a load, then you indeed need a negative supply. Consider the LM7705.

0 Ron Michallick over 3 years ago in reply to Kevin Zeng

TI__Guru**** 170716 points

Kevin,

Are you sure true zero is needed? In most cases, there is a way to not need it.

0 Kevin Zeng over 3 years ago in reply to Ron Michallick

TI__Expert 3085 points

Some customer need this true zero function, sometime they will use a negative voltage to as op amp power.

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TLV9302: The rail to rail output Op Amp can output 0 V?