| 摘要 |
PURPOSE: A sensor driving circuit and a driving method thereof are provided to measure an exact output signal by correcting the temperature deflection and the offset of a sensor. CONSTITUTION: A first amplification unit(110) amplifies a sensing signal received from an external sensor with a first amplification factor. A temperature sensor(120) outputs a temperature signal by sensing the temperature of the surrounding area. A memory(140) stores a second amplification factor and an offset correction value for each temperature span. A microcontroller(130) produces the offset correction value and the second amplification factor which correspond to the temperature signal. An offset correction unit(150) carries out an offset correction in regard to the sensing signal. A second amplification unit(160) outputs a final signal by amplifying an offset-corrected sensing signal with the second amplification factor. |
