Description

The ACPL-C79B/C79A/C790 isolation amplifers are designed for current and voltage sensing in electronic power converters in 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 amplifer. A differential output voltage that is proportional to the current is created on the other side of the optical isolation barrier.

Features

• ±0.5 High Gain Accuracy (ACPL-C79B)

• –50 ppm/°C Low Gain Drift

• 0.4 mV Input Offset Voltage

• 0.05 Excellent Linearity

• 62 dB SNR

• 200 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 Converter Technology

• Fully Differential Isolation Amplifer

• 15 kV/µs Common-Mode Transient Immunity

• Compact, Auto-Insertable Stretched SO-8 Package

• Safety and Regulatory Approvals:

– IEC/EN/DIN EN 60747-5-5: 1414 Vpeak working

insulation voltage

– UL 1577: 5000 Vrms/1min double protection rating

– CSA: Component Acceptance Notice #5

Applications

• Current/Voltage Sensing in AC and Servo Motor Drives

• Solar Inverters, Wind Turbine Inverters

• Industrial Process Control

• Data acquisition systems

• Switching Power Supply Signal Isolation

• General Purpose Analog Signal Isolation

• Traditional Current Transducer Replacements