LMV762: Application problem

Yadong Duan

Part Number: LMV762

Dear Team，

When using one of the two comparators of this dual, how should I connect the unused comparator? Is there a design file for LMV762?

Thanks

over 3 years ago

0 kai klaas69 over 3 years ago

Guru 140200 points

Hi Yadong,

you could connect one input to midsupply by the help of a 100k + 100k voltage divider being connected between the positive supply voltage and the negative supply voltage (GND). Connect the other input via a 10k current limiting resistor to the negative supply voltage (GND).

Kai

0 Yadong Duan over 3 years ago in reply to kai klaas69

TI__Intellectual 980 points

Hi Kai

For the LMV762,if the unused channel is in a floating state, will it affect the other channel?

Thanks

0 kai klaas69 over 3 years ago in reply to Yadong Duan

Guru 140200 points

Hi Yadong,

it's no good idea to let the unused channel float, especially when we talk about a CMOS chip. I would never do that.

Kai

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

TI__Mastermind 24090 points

Great advice. Thanks Kai

Chuck

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LMV762: Application problem