AEC-Q100 qualified, 110V 75ARMS high-precision current-sense amplifier with fast transient response

The INA791x-Q1 is

a voltage output, current sense amplifier with an integrated shunt resistor of 400µΩ. The

INA791x-Q1 is designed to monitor bidirectional current over a common-mode

range of –4V to 110V, independent of the supply voltage. Adjustable gain option assists in

optimizing the system dynamic range. The integration of the Kelvin connected shunt resistor

with a zero-drift chopped amplifier provides calibration equivalent measurement accuracy,

ultra-low temperature drift performance of ±35ppm/°C, and an optimized layout for the

sensing resistor.

This device operates from a single 2.7V to

5.5V power supply, drawing a maximum of 4.25mA of supply current. All versions are specified

over the extended operating temperature range (–40°C to +125°C), and are available in a

15-pin wettable flank VQFN

package.