Patent ID: 7089146

Claim:
A circuit for temperature sensing, comprising: a comparator circuit that is configured to compare a first comparison voltage with a second comparison voltage to provide a comparison output signal, wherein the first comparison voltage is based on a first half of a differential signal; the second half of the differential signal is based on a bias voltage; and wherein the second comparison voltage is based, in part, on a DAC output voltage; and a digital-to-analog converter circuit that is arranged to provide the DAC output voltage from a DAC input signal, wherein the DAC input signal is based, in part, on the comparison output signal, the digital-to-analog converter is configured to offset the DAC output voltage during a first phase such that a difference between the DAC output voltage during the first phase and the DAC output voltage during a second phase is substantially equal to an offset voltage, and wherein the offset voltage is based on the bias voltage.