HCPL7860

HCPL-7860/HCPL-786J Optically Isolated Sigma-Delta (S-D) Modulator Data Sheet Lead (Pb) Free RoHS 6 fully compliant RoHS 6 fully compliant options available; -xxxE denotes a lead-free product Description The HCPL-7860/HCPL-786J Optically Isolated Modulator and HCPL-0872 Digital Interface IC or digital filter together form an isolated programmable two-chip analog-to-digital converter. The isolated modulator allows direct measurement of motor phase currents in power inverters. In operation, the HCPL-7860/HCPL-786J Isolated Modulator converts a low-bandwidth analog input into a highspeed one-bit data stream by means of a Sigma-Delta (Σ−∆) over-sampling modulator. This modulation provides for high noise margins and excellent immunity against isolation-mode transients. The modulator data and onchip sampling clock are encoded and transmitted across the isolation boundary where they are recovered and decoded into separate high-speed clock and data channels. Features 12-bit Linearity 200 ns Conversion Time (Pre-Trigger Mode 2 with HCPL-0872) 12-bit Effective Resolution with 5 µs Signal Delay (14-bit with 102 µs) (with HCPL-0872) Fast 3 µs Over-Range Detection (with HCPL-0872) ± 200 mV Input Range with Single 5 V Supply 1% Internal Reference Voltage Matching Offset Calibration (with HCPL-0872) -40°C to +85°C Operating Temperature Range 15 kV/µs Isolation Transient Immunity Safety Approval: UL 1577, CSA and IEC/EN/DIN EN 60747-5-5 Applications Motor...