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INA701 bảng dữ liệu(PDF) 13 Page - Texas Instruments

tên linh kiện INA701
Giải thích chi tiết về linh kiện  INA701 40V, 16-Bit, I2C Output Digital Power Monitor in WCSP With 5mΩ EZShunt™ Technology
PDF  47 Pages
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nhà sản xuất  TI2 [Texas Instruments]
Trang chủ  https://www.ti.com
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INA701 bảng dữ liệu(HTML) 13 Page - Texas Instruments

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Temperature ( C)
-50
-25
0
25
50
75
100
125
4.5
5
5.5
6
6.5
7
7.5
8
8.5
9
9.5
10
Figure 6-1. IN+ to IN– Package Resistance vs Temperature
The internal compensation of the INA701 corrects for pin-to-pin resistance increases with temperature, achieving
less than 50ppm/°C drift over the ambient temperature range.
The INA701 is most accurate when measuring currents in the range of 0.1A to 3A. As currents increase the
error in the current measurement also increases. Figure 6-2 below shows how the gain error of the INA701 stays
under 0.4% for the shunt current range of 0.1A to 2.5A.
Shunt Current (A)
0
0.25
0.5
0.75
1
1.25
1.5
1.75
2
2.25
2.5
-0.2
-0.16
-0.12
-0.08
-0.04
0
0.04
0.08
0.12
0.16
0.2
0.24
0.28
0.32
0.36
0.4
Figure 6-2. Gain Error vs Shunt Current
The change in gain error is consistent enough from device to device that returned values can be scaled up or
down depending on the shunt current to give a more accurate result. For example, to achieve higher accuracy
when measuring currents around 5A, the returned value can be scaled down by approximately 2% as shown in
Figure 6-3.
www.ti.com
INA701
SBOSAM2 – AUGUST 2025
Copyright © 2025 Texas Instruments Incorporated
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Product Folder Links: INA701



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