Composed of INA337 output reference potential to VREF / 2 circuit

Published:2014/5/14 21:08:00 Author:lynne | Keyword: Composed of INA337 output reference potential to VREF / 2 circuit, INA337 | From:SeekIC

Composed of INA337 output reference potential to VREF / 2 circuit shown as follow: As shown by INA337 constitute the output of the reference potential for VREF / 2 circuits. When unbalanced bridge, the bridge output voltage by the output after INA337 magnified 100 times, after filter composed of Ro and Co filter out noise, and sent to the A/D converter converts analog signals to digital signals. In 5 feet with two 200 k Ω INA337 resistance partial pressure, VREF / 2 potential, potential to VREF / 2 to 5 feet. Output voltage is 5 feet for reference potential, so the output potential becomes relatively to VREF / 2 for reference. G = 2 (200 k Ω ∥ Ω) 200 k / 2 k Ω = 100.



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