INA214-Q1: Question about V+ Line of INA214

taegon.kim

Prodigy 30 points

Part Number: INA214-Q1
Other Parts Discussed in Thread: INA214

Tool/software:

I have a question about INA214

If I use 3.3V on V+ Line, How much voltage can recognized in IN+ and IN- ?

1. I used 7.5V voltag, Is it possible to recognize?

Is it recognize 0 ~ 26V regardless V+ ?

2. V+ voltage related only Out port. ?

If V+ voltage is 3.3V, Output range is GND-0.3V ~ 3.3 + 0.3V.

Is it right?

Thanks

Taegon.Kim

2 months ago

+1 Clemens Ladisch 2 months ago

Guru 268180 points

The common-mode range at the two inputs is independent from the supply voltage. The OUT and REF pins are limited by V+.

+1 Mallika Senthil 2 months ago

TI__Intellectual 1310 points

Hi Taegon.Kim,

Thank you for your question.

I agree with Clemens, the IN+ and IN- pins are independent voltages with a range of (GND-0.3) to 26V regardless of Vs. The OUT and REF on the other hand are set by Vs as mentioned in the Abs Max specs (table 5.1) of the data sheet.

Best,
Mallika Senthil

0 taegon.kim 2 months ago

Prodigy 30 points

Thanks for your feedback

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INA214-Q1: Question about V+ Line of INA214