Texas Instruments INA220

the ina220 is a current shunt and power monitor with an two-wire interface. the ina220 monitors both shunt drop and...

the ina220 is a current shunt and power monitor with an two-wire interface. the ina220 monitors both shunt drop and supply voltage. a programmable calibration value combined with an internal multiplier enables direct readouts in amperes. an additional multiplying register calculates power in watts. the two-wire interface features 16 programmable addresses. the separate shunt input on the ina220 allows it to be used in systems with low-side sensing. the ina220 is available in two grades: a and b. the b grade version has higher accuracy and higher precision specifications. the ina220 senses across shunts on buses that can vary from 0v to 26v useful for low-side sensing or cpu power supplies. the device uses a single +3v to +5. view all in datasheet