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| OPA454_16 Datasheet, PDF (30/47 Pages) Texas Instruments – High-Voltage (100-V), High-Current (50-mA) Operational Amplifiers | |||
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OPA454
SBOS391B â DECEMBER 2007 â REVISED MARCH 2016
System Examples (continued)
www.ti.com
R7
10kW
R1
90kW
+100V
V+
OPA454
A1
V-
+
Gain Adjust Voltage
V1
2.5V to 9.5V
RSENSE
100W
APD
+100V
V+
R2
1kW
OPA454
A2
V-
R4
100kW
+100V
V+
+100V
OPA454
A4
V-
V+
R3
1kW
OPA454
A3
V-
R5
100kW
LED
VLED
VOUT = 100 ´ RSENSE ´ ID
VOUT +100V
R8
198kW
LM4041D
Adjusted for 2.0V
-200V
Example Circuit For Reverse Biasing APD
(130V to 280V, max)
Advanced Photonix, Inc.
SD 036-70-62-531
Digi-Key
SD 036-70-62-531
Figure 78. APD Gain Adjustment Using the OPA454, High-Voltage Op Amp
R9
4.9kW
100W
R10
3.1kW
30
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Product Folder Links: OPA454
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