The Broadcom ACNT-H79B isolation amplifiers are designed for current and voltage sensing in electronic power converters for applications including motor drives and renewable energy systems. In a typical motor drive implementation, current flows through an external resistor and the resulting analog voltage drop is sensed by the isolation amplifier. A differential output voltage that is proportional to the current is created on the other side of the optical isolation barrier.

±05% gain accuracy (ACNT-H79B)
–50 ppm/°C low gain drift
06-mV input offset voltage
005% excellent linearity
60-dB SNR
200-kHz wide bandwidth (Typ)
–40°C to +105°C operating temperature range
Advanced sigma-delta (-) A/D modulation technology
15-mm stretched SO-8 package
05-mm distance through insulation (DTI)
15-kV/μs common-mode transient immunity