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| AMC1305L25-Q1 Datasheet, PDF (28/38 Pages) Texas Instruments – High-Precision, Reinforced Isolated Delta-Sigma Modulators | |||
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AMC1305L25-Q1, AMC1305M05-Q1, AMC1305M25-Q1
SBAS797 â FEBRUARY 2017
www.ti.com
Typical Applications (continued)
This additional series resistor (R3') influences the gain error of the circuit. The effect can be calculated using
Equation 5 with R5 = R5' = 50 kΩ and R4 = R4' = 2.5 kΩ (for the AMC1305M05-Q1) or 12.5 kΩ (for the
AMC1305x25-Q1).
EG (%)
¨§ 1
©
R4 ¸· *100%
R4' R3' ¹
(5)
9.2.2.3 Application Curve
Figure 57 shows the dependency of the input bias current on the common-mode voltage at the input of the
AMC1305-Q1.
AMC1305x25-Q1
AMC1305M05-Q1
Figure 57. Input Current vs Input Common-Mode Voltage
28
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Product Folder Links: AMC1305L25-Q1 AMC1305M05-Q1 AMC1305M25-Q1
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