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INA211CIRSWRG4 Folha de dados(PDF) 15 Page - Texas Instruments

Nome de Peças INA211CIRSWRG4
Descrição Electrónicos  INA21x Voltage Output, Low- or High-Side Measurement, Bidirectional, Zero-Drift Series, Current-Shunt Monitors
PDF  50 Pages
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Fabricante Electrônico  TI2 [Texas Instruments]
Página de início  https://www.ti.com
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INA211CIRSWRG4 Folha de dados(HTML) 15 Page - Texas Instruments

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With the adjustment factor from Equation 1, including the device internal input resistance, this factor varies with
each gain version, as shown in Table 6-1. Each individual device gain error factor is shown in Table 6-2.
Table 6-1. Input Resistance
PRODUCT
GAIN
RINT (kΩ)
INA210
200
5
INA211
500
2
INA212
1000
1
INA213
50
20
INA214
100
10
INA215
75
13.3
Table 6-2. Device Gain Error Factor
PRODUCT
SIMPLIFIED GAIN ERROR FACTOR
INA210
1000
R
+ 1000
S
INA211
10,000
(13
R
+ 10,000
´
S)
INA212
5000
(9
R
+ 5000
´
S)
INA213
20,000
(17
R
+ 20,000
´
S)
INA214
10,000
(9
R
+ 10,000
´
S)
INA215
8,000
(7 RS) + 8,000
x
The gain error that can be expected from the addition of the external series resistors can then be calculated
based on Equation 2:
Gain Error (%) = 100
(100
Gain Error Factor)
-
´
(2)
For example, using an INA212 and the corresponding gain error equation from Table 6-2, a series resistance of
10 Ω results in a gain error factor of 0.982. The corresponding gain error is then calculated using Equation 2,
resulting in a gain error of approximately 1.77% solely because of the external 10-Ω series resistors. Using an
INA213 with the same 10-Ω series resistor results in a gain error factor of 0.991 and a gain error of 0.84% again
solely because of these external resistors.
www.ti.com
INA210, INA211, INA212, INA213, INA214, INA215
SBOS437K – MAY 2008 – REVISED NOVEMBER 2023
Copyright © 2023 Texas Instruments Incorporated
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Product Folder Links: INA210 INA211 INA212 INA213 INA214 INA215



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