TLV1701: Questions

Allan Fan

Part Number: TLV1701
Other Parts Discussed in Thread: TIPD114

Hi Expert,

May I learn from you if customer used TLV1701 without hysteresis, how could we get estimated total threshold voltage variation for Vin+ from DS spec point of view?

Take TIPD114 as an example, besides the resistor tolerance, any other parameters in TLV1701 would also contribute error on Vin+?

Thanks,

Allan

over 3 years ago

0 Clemens Ladisch over 3 years ago

Guru 275820 points

The worst-case offset voltage of ±5.5 mV is specified over the entire temperature range. (The offset voltage can increase near the positive supply, but that is not the case in this circuit.)

0 kai klaas69 over 3 years ago

Guru 140200 points

Hi Allan,

still to add 1mV for the 20nA input bias current across the two 100k biasing resistors (effectively being in parallel for the input bias current) and +/-25mV caused by the +/-1% manufacturing tolerances of the 100k biasing resistors.

Kai

0 Chuck Sins over 3 years ago in reply to kai klaas69

TI__Mastermind 24330 points

Thanks Clemens and Kai for the solid analysis.

Allan, I believe these responses have answered your question.

Chuck

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TLV1701: Questions