Figure 8-1 shows the AMC1301-Q1 in a typical application of a motor drive for an AC compressor. The load current flowing through an external shunt resistor RSHUNT produces a voltage drop that is sensed by the AMC1301-Q1. The AMC1301-Q1 digitizes the analog input signal on the high-side, transfers the data across the isolation barrier to the low-side, reconstructs the analog signal, and presents that signal as a differential voltage on the output pins.

The differential input, differential output, and the high common-mode transient immunity (CMTI) of the AMC1301-Q1 provide reliable and accurate operation even in high-noise environments.

Figure 8-1 Using the AMC1301-Q1 for Current Sensing in a Typical Application