HCNR200 Datasheet, PDF (11/19 Pages) Agilent(Hewlett-Packard) – High-Linearity Analog Optocouplers

1000
900
800
700
600
500
400
300
200
100
0
0
P_S OUTPUT POWER – mV
I_S INPUT CURRENT – mA
25 50 75 100 125 150 175
T_S – CASE TEMPERATURE – °C
Figure 11. Thermal derating curve dependence of safety limiting value
with case temperature per IEC/EN/DIN EN 60747-5-2.
R1
V_IN
+
I_PD1
PD1
A1
-
LED
I_F
R2
I_PD2
-
PD2
A2
+
R1
V_IN
PD1
A) BASIC TOPOLOGY
C1
-
A1
+
V_CC
LED
R3
PD2
R2
C2
-
PD2
A2
+
Figure 12. Basic isolation amplifier.
B) PRACTICAL CIRCUIT
V_CC
V_IN
-
-
+
+
V_OUT
V_OUT
V_OUT
A) POSITIVE INPUT
B) POSITIVE OUTPUT
V_IN
-
+
C) NEGATIVE INPUT
Figure 13. Unipolar circuit topologies.
11
-
V_OUT
+
D) NEGATIVE OUTPUT