TPA3130D2: RINP/N 3V bias offset

Shinya Sawamoto

Part Number: TPA3130D2

Hello team,

Let me ask how many potential variation we should estimate on RINP/N 3V bias offset.
My concern is that the differential offset could affect to output swing variation.

Thanks in advance.
S.Sawamoto

over 3 years ago

0 Matthew Miao over 3 years ago

TI__Expert 6720 points

Hi,

The input offset difference influence to output is specified through output offset voltage as below: Typical 1.5mV / Max 15mV.

Regards

0 Shinya Sawamoto over 3 years ago in reply to Matthew Miao

TI__Expert 5260 points

Allow me to ask one additional question.
Does the Vos spec have a dependency with Gain? (If the Gain is lower than 36dB, should the offset be decreased or stay same?)

Thanks in advance.
S.Sawamoto

0 Sam(MPAA) Zhang over 3 years ago in reply to Shinya Sawamoto

TI__Mastermind 19080 points

Hi Sawamoto-san,

There should be no dependency with Gain. The OFFSET is on the input stage, while the gain blocks are afterward along the signal chain.

Thanks!

Regards,

Sam

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TPA3130D2: RINP/N 3V bias offset