HCPL-553X Datasheet, PDF (13/14 Pages) Agilent(Hewlett-Packard) – Hermetically Sealed, Transistor Output Optocouplers for Analog and Digital Applications

-
U₁
+
+
V _IN
I_{F 1}
1
2
I_{F 2}
3
-
-
U₂
4
+
U ₁ , U ₂ , U ₃ , U ₄ , LM307
I_C1 = K ₁
I_F1 ⁿ¹
´^{IF 1}
I_C2 = K ₂
I_F2 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
I_C1
-
7
U₃
+
2
6
I_C2
R ₄ 1 kΩ
5
5 k Ω GAIN ADJUST
-15 V
-
U₄
+
2
R₅
50 k Ω
V_OUT
Figure 13. Isolation Amplifier Application Circuit.
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)
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.
13