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HCPL-6531 датащи(PDF) 13 Page - Agilent(Hewlett-Packard) |
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HCPL-6531 датащи(HTML) 13 Page - Agilent(Hewlett-Packard) |
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13 / 14 page ![]() 13 MIL-PRF-38534 Class H, Class K, and DSCC SMD Test Program Agilent’s Hi-Rel Optocouplers are in compliance with MIL- PRF-38534 Classes H and K. Class H and Class K devices are also in compliance with DSCC drawings 5962-87679, and 5962-90854. Testing consists of 100% screening and quality conformance inspection to MIL-PRF-38534. Description The schematic uses a dualchannel, high-speed optocoupler (HCPL-5530) to function as a servo type dc isolation amplifier. This circuit operates on the principle that two optocouplers will track each other if their gain changes by the same amount over a specific operating region. Performance of Circuit • 1% linearity for 10 V peak- to-peak dynamic range • Gain drift: -0.03%/°C • Offset Drift: ± 1 mV/°C • 25 kHz bandwidth (limited by Op-Amps U1, U2) Figure 13. Isolation Amplifier Application Circuit. VOUT IF 3 R 1 2 3 4 8 7 6 5 1 IF 2 V IN U1 2 U 3 -15 V - + - + I C 2 -15 V I CC 6 mA I C 1 = K 1 I F 1 I n 1 I C 2 = K 2 I F 2 I n 2 HCPL-5530 2 U 4 - + 2 5 k Ω GAIN ADJUST R 4 1 kΩ 5 R 5 k Ω OFFSET ADJUST I C 1 220 Ω R 2 2.7 k Ω R 1 2.7 k Ω + U2 - + - U 1 , U 2 , U 3 , U 4 , LM307 50 k Ω F ´1 F 2 ´ |
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