INA199: INA199 -REF

switch

Genius 3780 points

Part Number: INA199

Hi TI Team，

1. What is the function of INA199 REF PIN?
2. Can I use this pin to improve the sampling accuracy?

over 4 years ago

0 kai klaas69 over 4 years ago

Guru 140200 points

The REF pin sets the output offset voltage. Please read the datasheet

Kai

+1 Javier Contreras4 over 4 years ago in reply to kai klaas69

TI__Mastermind 32290 points

Hello Switch,

As Kia mentioned the Ref pin is used to set the output at 0 Vsense input. If you have a noisy Ref you can get issue with your output. If you measure with respect to the REF pin it will help in error created from a changing Ref Voltage and some noise or drift elements of the Ref voltage.

Here is some training material that can help. https://training.ti.com/ti-precision-labs-current-sense-amplifiers

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INA199: INA199 -REF