The Broadcom ACPL-C87A voltage sensors are optical isolation amplifiers designed specifically for voltage sensing. Its 2V input range and high 1GΩ input impedance, makes it well suited for isolated voltage sensing requirements in electronic power converters applications including motor drives and renewable energy systems. In a typical voltage sensing implementation, a resistive voltage divider is used to scale the DC-link voltage to suit the input range of the voltage sensor. A differential output voltage that is proportional to the input voltage is created on the other side of the optical isolation barrier.

0.5% High Gain Accuracy (ACPL-C87B only)
Unity Gain 1V/V
-35 ppm/°C Low Gain Drift
-0.3 mV Input Offset Voltage
0.1% Excellent Non-Linearity Max
Active High Shutdown Pin
100 kHz Wide Bandwidth
3 V to 5.5 V Wide Supply Range for Output Side
–40°C to +105°C Operating Temperature Range
Advanced Sigma-Delta A/D Modulation Technology
15 kV/μs Common-Mode Transient Immunity
Compact, Auto-Insert able Stretched SO-8 Package