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| HCPL-6531 Datasheet, PDF (13/13 Pages) AVAGO TECHNOLOGIES LIMITED – Hermetically Sealed, Tansistor Output Optocouplers for Analog and Digital Applications | |||
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-
U1
+
+
V IN
IF 1
1
2
IF 2
3
-
-
U2
4
+
U 1 , U 2 , U 3 , U 4 , LM307
IC1 = K 1
IF1 n1
´IF 1
IC2 = K 2
IF2 n2
´IF 2
R1
2.7 k Ω
R2
2.7 k Ω
6 mA
I CC
-15 V
HCPL-5530
2
R3
OFFSET ADJUST
5 kΩ
8
220 Ω
IC1
-
7
U3
+
2
6
IC2
R 4 1 kΩ
5
5 k Ω GAIN ADJUST
-15 V
-
U4
+
2
R5
50 k Ω
VOUT
Figure 13. Isolation Amplifier Application Circuit.
Description
The schematic uses a dualchannel, high-speed optocou-
pler (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.
MIL-PRF-38534 Class H, Class K, and DLA SMD Test Program
Avago Technologiesâs Hi-Rel Optocouplers are in compli-
ance with MIL-PRF-38534 Classes H and K. Class H and Class
K devices are also in compliance with DLA drawings 5962-
87679, and 5962-90854. Testing consists of 100% screening
and quality conformance inspection to MIL-PRF-38534.
Performance of Circuit
ï· 1% linearity for 10 V peak-to-peak dynamic range
ï· Gain drift: -0.03%/°C
ï· Offset Drift: ± 1 mV/°C
ï· 25 kHz bandwidth (limited by Op-Amps U1, U2)
For product information and a complete list of distributors, please go to our web site: www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Limited in the United States and other countries.
Data subject to change. Copyright © 2005-2012 Avago Technologies Limited. All rights reserved. Obsoletes 5989-1659EN
AV02-3846EN - October 2, 2012
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