Patent ID: 8543347

Claim:
An electronic sensor configured to compensate for temperature and measure a physical parameter, the electronic sensor comprising: a voltage bias circuit having at least one electrical output connection and first and second circuit elements, the first circuit element having a first physical characteristic of a first value and the second circuit element having a second physical characteristic of a second value, wherein the first and second values are set according to a first ratio relating the first value to the second value; a voltage controlled oscillator connectable to the at least one electrical output connection of the voltage bias circuit; a frequency sensor connectable to the voltage controlled oscillator, wherein in operation the frequency sensor provides a first digital value and a second digital value, indicative of an operating frequency of the voltage controlled oscillator at two different points in a linear operating region; and a first digital physical parameter calculator circuit connectable to the frequency sensor to receive the first and second digital values, the first digital physical parameter calculator including digital logic configured to derive at least one digital value indicative of a measured physical parameter using the first and second digital values.