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INA790B Datasheet(PDF) 26 Page - Texas Instruments

Part # INA790B
Description  INA790x –4V to 110V, Bidirectional, Ultra-Precise, Current Sense Amplifier With Enhanced PWM Rejection and 75A EZShunt™ Technology
PDF  39 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

INA790B Datasheet(HTML) 26 Page - Texas Instruments

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Table 7-4. INA790x RISO Dual Feedback Values (continued)
Adjustable Gain
Total Gain (mV/A)
RFB1
RFB2
RISO
CF
Min CL
5
100
19.1kΩ
4.7kΩ
0Ω (Short)
0.1nF
Open
Adjustable Gain = 1, VCM = 20V, VS = 5V, VREF= 0.2V
Figure 7-6. INA790x Load Step Responses Before and After RISO Dual Feedback for Adjustable Gain of 1
Time ( s)
0
1
2
3
4
5
6
7
8
9
10
11
12
0
5
10
15
20
0.2
0.6
1.0
1.4
1.8
2.2
2.6
Load Current (ISense)
VOUT CF = CL = Open
VOUT CF = 100pF, CL = Open
Adjustable Gain = 4, VCM = 20V, VS = 5V, VREF= 0.2V
Figure 7-7. INA790x Load Step Responses Before and After Feedback Capacitor For Adjustable Gain of 4
7.2 Typical Applications
The INA790x offers advantages for multiple applications including the following:
• High common-mode range and excellent CMRR enables direct inline sensing
• Precision low-inductive, low-drift shunt eliminates the need for overtemperature system calibration
• Ultra-low offset and drift eliminates the necessity of calibration
INA790A, INA790B
SBOSAA6B – MAY 2024 – REVISED JULY 2025
www.ti.com
26
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Copyright © 2025 Texas Instruments Incorporated
Product Folder Links: INA790A INA790B



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