INA241A-Q1: application consult

Hi,

是按照图片1里这个公式计算

Regards, Guang 

Hi luo sui,

REF1/REF2接地，可以按照Vout= I× RSENSE × G来计算Vout. This configuration provides maximum dynamic range for a unidirectional current measurement application.

Even though the output won’t surpass the supply which is 3.3V, and the ADC won’t see more than 3.3V, it is a good idea not to clip the output signal.

Regards, Guang

Hi luo sui,

By “not to clip the output signal”, I meant to say that the maximum output voltage (Vout= I× RSENSE × G) should be smaller than the power supply 3.3V.

For INA241A5-Q1的替代料 – we have a large selection of current sense amplifiers, you can browse from this link. You’d have to define how similar the replacement is to INA241.

Regards, Guang