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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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INA826 датащи(PDF) 23 Page - Texas Instruments |
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INA826 датащи(HTML) 23 Page - Texas Instruments |
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23 / 33 page  Equation 9 calculates the common-mode rejection ratio with given factors: CMRRdB = G1 +1 α∙ΔRR∙ n (9) CMRRdB = 0.25 +1 0.33∙0.1%∙√4 = 65.5 dB (10) The scaling ratio G1 is calculated by: G1 = Rf Rf+ Ri (11) Where Rf is variable and Ri is fixed at 750 kΩ. Figure 9-6 shows a comparison between the CMRR performance at worst-case (α neglected) and considering normal distribution for different gain settings of G1. For more details about the calculation of CMRR, see the Difference amplifier (subtractor) circuit analog engineer's circuit. 9.2.2.3 Application Curves Figure 9-6. Common-mode Rejection Ratio of External Resistor Network for Different Scaling Ratios www.ti.com INA823 SBOSA75A – JULY 2021 – REVISED JULY 2021 Copyright © 2021 Texas Instruments Incorporated Submit Document Feedback 23 Product Folder Links: INA823 |
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