Anterwell Technology Ltd.
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Storage Temperature: | -55 To 125 °C | Ambient Operating Temperature: | -40 To 85 °C |
---|---|---|---|
Supply Voltages: | 0 To 5.5 V | Average Input Bias Current: | -0.8 µA |
Average Input Resistance: | 450 KΩ | Input DC Common-Mode Rejection Ratio: | 60 DB |
High Light: | electronic integrated circuit,linear integrated circuits |
Agilent HCPL-7860/HCPL-786J
Optically Isolated Sigma-Delta (Σ−∆) Modulator
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 (optocoupler with 3750 VRMS dielectric withstand voltage rating) converts a lowbandwidth analog input into a high-speed 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 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.
Features
• 12-bit Linearity
• 200 ns Conversion Time (PreTrigger 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 60747-5-2
Applications
• Motor Phase and Rail Current Sensing
• Data Acquisition Systems
• Industrial Process Control
• Inverter Current Sensing
• General Purpose Current Sensing and Monitoring
Absolute Maximum Ratings
Parameter | Symbol | Min. | Max. | Units | Note |
---|---|---|---|---|---|
Storage Temperature | TS | -55 | 125 | °C | |
Ambient Operating Temperature | TA | -40 | 85 | °C | |
Supply Voltages | VDD1, VDD2 | 0 | 5.5 | V | |
Steady-State Input Voltage | VIN+, VIN- | -2.0 | VDD1 + 0.5 | V | 1 |
Two Second Transient Input Voltage | -6.0 | V | |||
Output Voltages | MCLK, MDAT | -0.5 | VDD2 + 0.5 | ||
Lead Solder Temperature | 260°C for 10 sec., 1.6 mm below seating plane | 2 | |||
Solder Reflow Temperature Profile | See Maximum Solder Reflow Thermal Profile section |
Notes:
1. If VIN- (pin 3) is brought above VDD1 - 2 V with respect to GND1 an internal opticalcoupling test mode may be activated. This test mode is not intended for customer use.
2. Agilent recommends the use of nonchlorinated solder fluxes.
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