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REF5050 Datasheet(PDF) 11 Page - Burr-Brown (TI) |
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REF5050 Datasheet(HTML) 11 Page - Burr-Brown (TI) |
11 / 18 page www.ti.com APPLICATION CIRCUITS DATA ACQUISITION NEGATIVE REFERENCE VOLTAGE ADS8326 REF5040 REF V OUT GND +IN - IN V IN +5V OPA365 Input Signal 0Vto4V +5V +5V V DD GND C BYPASS 1 F m R 1 50W C 1 1.2nF C 2 22 F m - 2.5V +2.5V +5V NOTE:Bypasscapacitorsnotshown. R 1 10kW R 2 10kW - 5V OPA735 +5V DNC TEMP V OUT V IN GND DNC NC TRIM REF5025 1 F m REF5020,, REF5025 REF5030, REF5040 REF5045, REF5050 SBOS410 – JUNE 2007 Data acquisition systems often require stable voltage For applications requiring a negative and positive references to maintain accuracy. The REF50xx family reference voltage, the REF50xx and OPA735 can be features low noise, very low drift, and high initial used to provide a dual-supply reference from a 5V accuracy for high-performance data converters. supply. Figure 25 shows the REF5025 used to Figure 26 shows the REF5040 in a basic data provide a 2.5V supply reference voltage. The low drift acquisition system. performance of the REF50xx complements the low offset voltage and zero drift of the OPA735 to provide an accurate solution for split-supply applications. Care must be taken to match the temperature coefficients of R1 and R2. Figure 26. Basic Data Acquisition System Figure 25. The REF5025 and OPA735 Create Positive and Negative Reference Voltages 11 Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): REF5020 REF5025 REF5030 REF5040 REF5045 REF5050 |
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