Temperature sensor array and micro-heater thermal calibration

A temperature sensor circuit comprising:

• a current generator that generates two or more currents;
• two or more temperature sensing elements that receive one current at a time and generate at least two voltages based on each of the currents;
• and
• a temperature controller that, based on a function of at least two voltages, determines a temperature at the temperature sensing elements.

A temperature sensor circuit, comprising:

• a current generator that generates two or more currents;
• a temperature sensing element that receives the two or more currents one at a time and generates two or more voltages based on the two or more currents;
• and
• a temperature controller that, based on a function of the two or more voltages, determines a temperature at the temperature sensing element.

A heater device, comprising:

• an on-chip heater;
• a temperature sensitive device, wherein in response to the on-chip heater being placed within a predefined distance to the temperature sensitive device, a temperature at the temperature sensitive device is modified by the heater that results in a device parameter associated with the temperature sensitive device changing;
• and
• a controller that generates one or more constant power levels for the on-chip heater.