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HCPL-7860 Scheda tecnica(PDF) 1 Page - AVAGO TECHNOLOGIES LIMITED |
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HCPL-7860 Scheda tecnica(HTML) 1 Page - AVAGO TECHNOLOGIES LIMITED |
1 / 18 page 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 measure- ment of motor phase currents in power inverters. In operation, the HCPL-7860/HCPL-786J Isolated Modula- tor converts a low-bandwidth analog input into a high- speed one-bit data stream by means of a Sigma-Delta ( 6') over-sampling modulator. This modulation provides for high noise margins and excellent immunity against isolation-mode transients. The modulator data and on- chip sampling clock are encoded and transmitted across the isolation boundary where they are recovered and de- coded into separate high-speed clock and data channels. NOTE: A 0.1 μF bypass capacitor must be connected between pins VDD1 and GND1 and between pins VDD2 and GND2. SIGMA DELTA MOD./ ENCODE DECODE 1 2 3 4 8 7 6 5 Input Current HCPL-0872 or Digital Filter MCU or DSP HCPL-7860 HCPL-7860/HCPL-786J Optically Isolated Sigma-Delta (S-D) Modulator Data Sheet Features x 12-bit Linearity x 200 ns Conversion Time (Pre-Trigger Mode 2 with HCPL-0872) x 12-bit Effective Resolution with 5 Ps Signal Delay (14-bit with 102 Ps) (with HCPL-0872) x Fast 3 Ps Over-Range Detection (with HCPL-0872) x ± 200 mV Input Range with Single 5 V Supply x 1% Internal Reference Voltage Matching x Offset Calibration (with HCPL-0872) x -40°C to +85°C Operating Temperature Range x 15 kV/Ps Isolation Transient Immunity x Safety Approval: UL 1577, CSA and IEC/EN/DIN EN 60747-5-2 Applications x Motor Phase and Rail Current Sensing x Data Acquisition Systems x Industrial Process Control x Inverter Current Sensing x General Purpose Current Sensing and Monitoring Lead (Pb) Free RoHS 6 fully compliant RoHS 6 fully compliant options available; -xxxE denotes a lead-free product CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation, which may be induced by ESD. |
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