The ACPL-736J is an ±50mV optically isolated sigma-delta modulator that accepts external clocks up to 21MHz.

It operates from a 5V power supply and achieves an SNR of 81 dB. The small input range of ±50 mV enables higher current measurements with lower shunt heat dissipation. It is ideal for direct connection to shunt resistors or other low-level signal sources in applications such as motor phase current measurement.

The ACPL-736J's isolated digital output interfaces operate from a 3V to 5.5V power supply. The ACPL-736J receives clock signal from an external source and streams out Σ-Δ bitstream in accordance with the input voltage sensing level through the CMOS output interface.

Offered in a SO-16 package, the optically isolated ACPL-736J delivers reliable and superior over-temperature performance motor drive designers need to measure current accurately compared to traditional current transducers.