HCPL-7840

Isolation Amplifier Technical Data HCPL-7840 Features 15 kV/µs Common-Mode Rejection at VCM = 1000 V Compact, Auto-Insertable Standard 8-pin DIP Package 0.00025 V/V/°C Gain Drift vs. Temperature 0.3 mV Input Offset Voltage 100 kHz Bandwidth 0.004% Nonlinearity Worldwide Safety Approval: UL 1577 (3750 Vrms/1 min.) and CSA (pending), VDE 0884 (Option #060 only) Advanced Sigma-Delta (Σ−∆) A/D Converter Technology Fully Differential Circuit Topology 0.8 µm CMOS IC Technology Applications Motor Phase and Rail Current Sensing Inverter Current Sensing Switched Mode Power Supply Signal Isolation General Purpose Current Sensing and Monitoring General Purpose Analog Signal Isolation Description The HCPL-7840 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 ...