The HCPL-7560-560 Sigma-Delta Modulator optically Isolated Modulator and HCPL-0872 Digital Interface IC or digital filter together form a optocoupler isolated programmable two-chip analog-to-digital converter. The isolated Sigma-Delta Modulator allows direct measurement of motor phase currents in power inverters.
In operation, the HCPL-7560-560 Sigma-Delta isolated Modulator (optocoupler with 3750 Vrms dielectric withstand voltage rating) converts a low-bandwidth analog input into a high-speed one-bit data stream by means of a Sigma-Delta isolated over-sampling modulator. This modulation provides for high noise margins and excellent immunity against isolation-mode transients. The sigma-delta modulator data and on-chip sampling clock are encoded and transmitted across the isolation boundary where they are recovered and decoded into separate high-speed clock and data channels.
Feature
- 8-bit Linearity
- 200 ns Conversion Time (Pre-Trigger Mode 2 with HCPL-0872)
- 8-bit Effective Resolution with 6 us Signal Delay (14-big with 103 us with HCPL-0872)
- Fast 3 us Over-Range Detection (with HCPL-0872)
- /- 200 mV Input Range with Single 5 V Supply
- 5% Internal Reference Voltage Matching
- Offset Calibration (with HCPL-0872)
- -40oC to 85oC Operating Temperature Range
- 15 kV/us isolation Transient Immunity
- Safety Approval:UL 1577, CSA and IEC/EN/DIN EN 60747-5-2
- Options available are:060 = IEC/EN/DIN EN 60747-5-2, Viorm = 891 Vpeak300 = Gull Wing Surface Mount Option500 = Tape and Reel Packaging OptionxxxE = Lead-Free Option
Applications
- Motor Phase and Rail Current Sensing
- Data Acquisition Systems
- Industrial Process Control
- Inverter Current Sensing
- General Purpose Current Sensing and Monitoring
