Patent ID: 6980141
Filing Date: 2005-12-27
Classification: H03M

Abstract:
1. An analog input circuit for an electronic circuit, which input is intended to be connected to an electrical output of a sensor for measuring a physical parameter, the sensor being supplied with a supply voltage Vcc and providing at its electrical output an analog voltage Vs dependent on the parameter to be measured, the analog input comprising: an analog/digital converter of resolution R a computer controlling said analog/digital converter so as to perform an analog/digital conversion of the supply voltage Vcc, the analog/digital converter providing the computer with a digital value Rsupp of the supply voltage Vcc of the sensor, an analog/digital conversion of the analog voltage Vs of the parameter to be measured, the analog/digital converter providing the computer with a digital value r of the analog voltage Vs to be measured, the computer providing a digital value Vn of the parameter to be measured such that: