Patent ID: 7602273

Claim:
A semiconductor device, comprising: a resistive element, the resistive element comprising: a first resistive circuit including: a first plurality of first resistors connected in series, the first resistors each having a positive temperature coefficient; a second plurality of first resistors, each of the second plurality of first resistors being separately selectively connectable in series with the first plurality of first resistors and each other; and a second resistive circuit separated from the first resistive circuit by a switching circuit, the second resistive circuit including: a first plurality of second resistors connected in series, the second resistors each having a negative temperature coefficient; a second plurality of second resistors, each of the second plurality of second resistors being separately selectively connectable in series with the first plurality of second resistors and each other, wherein each of the plurality of first resistors includes a metal film, and wherein the switching circuit is configured to change at least one of a number of resistors of the second plurality of first resistors functioning in the first resistive circuit and a number of resistors of the second plurality of second resistors functioning in the second resistive circuit.