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| OPA333_15 Datasheet, PDF (13/33 Pages) Texas Instruments – 1.8-V, microPower, CMOS Operational Amplifiers, Zero-Drift Series | |||
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OPA333
OPA2333
www.ti.com
SBOS351D â MARCH 2006 â REVISED NOVEMBER 2013
Additional application ideas are shown in Figure 23 through Figure 26.
RG
RSHUNT
zener(1)
R1(2)
10 kW
V+
OPA333
MOSFET rated to
stand-off supply voltage
such as BSS84 for
up to 50 V.
+5V
V+
Two zener
biasing methods
are shown.(3)
Load
RBIAS
Output
RL
(1) Zener rated for op amp supply capability (that is, 5.1 V for OPA333).
(2) Current-limiting resistor.
(3) Choose zener biasing resistor or dual NMOSFETs (FDG6301N, NTJD4001N, or Si1034)
Figure 23. High-Side Current Monitor
1 MW
3V
1 MW
60 kW
100 kW
NTC
Thermistor OPA333
Figure 24. Thermistor Measurement
V1
-In
OPA333
INA152
2
5
R2
R1
R2
6
VO
3
1
OPA333
V2
+In
VO = (1 + 2R2 / R1) (V2 - V1)
Figure 25. Precision Instrumentation Amplifier
Copyright © 2006â2013, Texas Instruments Incorporated
Product Folder Links: OPA333 OPA2333
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