[Current Sensor] Current Sensor Recommendation Request

MJ Jeon

Genius 5240 points

Other Parts Discussed in Thread: INA190, INA2191

Hi, TI Support Team

Please recommend a product capable of current sensing with the following spec.

Sensing current : 0~1.4mA

input Voltage : 5V

Please recommend a product with high accuracy.

Thanks.

Regards,

over 4 years ago

+1 Joseph Scherphorn over 4 years ago

TI__Expert 8310 points

Hello MJ,

Thanks for the question and using the E2E forum.

So if sensing at true 0V is needed your going to need to look at bidirectional devices without this your going to end up saturating to ground on the low end at some point. INA190 and INA2191 are both precision bidirectional devices that operate in current sensing range specified with recommended supply of 1.7 to 5.5 V. These devices are limited to -2 to 40V common-mode range so this needs to be considered.

INA190 data sheet, product information and support | TI.com

INA191 data sheet, product information and support | TI.com