Datasheet Summary
ACPL-C78A, ACPL-C780, ACPL-C784
Miniature Isolation Amplifiers
Data Sheet
Description
The ACPL-C78A/C780/C784 isolation amplifier family was 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 ACPL-C78A/C780/C784. A differential output voltage is created on the other side of the ACPL-C78A/ C780/C784 optical isolation barrier. This differential output voltage is proportional to the motor current and can be converted to a single-ended signal by using an op-amp as shown in the remended application circuit. Since mon-mode voltage swings of several...