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OPA189IDGKT Datasheet(PDF) 30 Page - Texas Instruments

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Part # OPA189IDGKT
Description  Precision, Lowest-Noise 36-V, Zero-Drift, 14-MHz MUX-Friendly, Rail-to-Rail Output, Operational Amplifiers
PDF  44 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

OPA189IDGKT Datasheet(HTML) 30 Page - Texas Instruments

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OPAx189
RTD
Pt100
R5
105.8 k
Ÿ
(1)
V
OUT
R3
60.4 k
Ÿ
R1
4.99 k
Ÿ
R2
49.1 k
Ÿ
R4
1 k
Ÿ
1 µF
1 µF
REF5050
15 V
In
Out
(5 V)
0°C = 0 V
200°C = 5 V
Copyright © 2017, Texas Instruments Incorporated
DAC8581
Input = ± 5V
C2
500 nF
OPAx189
±15V
±
+
+15V
R2
1 k
R1
10 k
GND
R3
10 k
OPA548
±30V
±
+
+30V
R4
40 k
C1
500 nF
VOUT
Output = ± 25V
Copyright © 2017, Texas Instruments Incorporated
30
OPA189, OPA2189
SBOS830C – SEPTEMBER 2017 – REVISED OCTOBER 2018
www.ti.com
Product Folder Links: OPA189 OPA2189
Submit Documentation Feedback
Copyright © 2017–2018, Texas Instruments Incorporated
Typical Applications (continued)
Figure 49. Programmable Power Supply
9.2.6 RTD Amplifier With Linearization
See Analog Linearization of Resistance Temperature Detectors (SLYT442) for an in-depth analysis of Figure 50.
Click the following link to download the TINA-TI file: RTD Amplifier with Linearization.
(1)
R5 provides positive-varying excitation to linearize output.
Figure 50. RTD Amplifier With Linearization



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