Patent ID: 7252432

Claim:
A temperature sensor comprising: a variable current supply in electrical communication with a switch arrangement through a first force line; a bias circuit in electrical communication with the switch arrangement through a second force line; an analog-to-digital converter having a first input terminal in electrical communication with the switch arrangement through a first sense line, a second input terminal in electrical communication with the switch arrangement through a second sense line, and an output terminal in electrical communication with a logic block; first and second data pins in electrical communication with the switch arrangement; and the logic block operatively coupled to the switch arrangement so as to electrically connect the first force line and the first sense line to one of the first and second data pins, and further electrically connect the second force line and the second sense line to the other of the first and second data pins; wherein the switch arrangement in cooperation with the logic block operatively reverses the first force line, the first sense line, the second force line and the second sense line electrical connections.