The HCPL-788J isolation amplifier is designed for current sensing in electronic motor drives. In a typical implementation, motor currents flow through an external resistor and the resulting analog voltage drop is sensed by the HCPL-788J. A larger analog output voltage is created on the other side of the HCPL-788J’s optical isolation barrier. The output voltage is proportional to the motor current and can be connected directly to a single supply A/D converter.
Features
• Output Voltage Directly Compatible with A/D Converters (0 V to VREF)
• Fast (3 µs) Short Circuit Detection with Transient Fault Rejection
• Absolute Value Signal Output for Overload Detection
