Patent ID: 8258854

Claim:
A method for generating a signal corresponding to temperature, the method comprising: providing a first input signal corresponding to a sensed temperature to a first input of a first differential amplifier; providing a first feedback signal to a second input of the first differential amplifier; generating a first current with the first differential amplifier based, at least in part, on the first input signal and the first feedback signal, the first current generated during at least a portion of a first time period and during at least a portion of a second time period, the first differential amplifier having a first configuration during the first time period and having a second configuration during the second time period; generating a first representation of temperature based, at least in part, on the first current; providing the first input signal to a first input of a second differential amplifier; providing a second feedback signal to a second input of the second differential amplifier; generating a second current with the second differential amplifier based, at least in part, on the second input signal and the second feedback signal; generating a second representation of temperature based, at least in part, on the second current; combining the first and second representations of temperature to provide combined representation of temperature; sampling a plurality of times the combined representation of temperature for the first time period and sampling the plurality of times the combined representation of temperature for the second time period; and generating the signal corresponding to temperature based at least in part on the sampling of the combined representation of temperature for the first and second time periods.