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INA826_1112 Fiches technique(PDF) 17 Page - Texas Instruments |
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INA826_1112 Fiches technique(HTML) 17 Page - Texas Instruments |
17 / 40 page A 1 A 2 A 3 7 50kW 50kW 50kW 50kW 8 5 4 3 2 1 -IN +IN R G V+ V- Device G=1+ 49.4kW R G 6 RFIFilter 24.7kW 24.7kW RFIFilter Load V =G (V ´ V - ) O IN+ IN- 0.1 F m 0.1 F m + - V O R G Alsodrawninsimplifiedform: Device REF V O -IN +IN REF R (1) S R (1) S INA826 www.ti.com SBOS562B – AUGUST 2011 – REVISED DECEMBER 2011 APPLICATION INFORMATION Figure 58 shows the basic connections required for operation of the INA826. Good layout practice mandates the use of bypass capacitors placed as close to the device pins as possible. The output of the INA826 is referred to the output reference (REF) terminal, which is normally grounded. This connection must be low-impedance to assure good common-mode rejection. Although 5 Ω or less of stray resistance can be tolerated while maintaining specified CMRR, small stray resistances of tens of ohms in series with the REF pin can cause noticeable degradation in CMRR. (1) This resistor is optional if the input voltage stays above [(V –) – 2 V] or the signal source current drive capability is limited to less than 3.5 mA. See the Input Protection section for more details. Figure 58. Basic Connections Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback 17 Product Folder Link(s): INA826 |
Numéro de pièce similaire - INA826_1112 |
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Description similaire - INA826_1112 |
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