Arrangement for processing sensor signals

Abstract From the Canadian patent

The arrangement serves to process sensor signals furnished by a sensor which when fed with a supply signal in response to the action of a physical measured quantity generates a measuring effect representing the dependence of an electrical characteristic quantity on the physical measured quantity. It includes a signal processing circuit which operates by the principle of quantized charge transport by means of switch-capacitor structures, The signal processing circuit establishes a charge balance by opposite integration of measuring charge packets dependent on the measuring effect and compensation charge packets independent of the measuring effect and furnishes an analog output signal …