Patent ID: 8878621
Filing Date: 2014-11-04
Classification: G05F,H02M,H03K,H03L

Abstract:
1. A temperature-compensated semiconductor resistor device, comprising: a primary resistor having a resistance value which varies in response to a variation of a substrate temperature; a resistance corrector that is coupled in series with the primary resistor and having a corrected resistance value which is switched by a preset resistance step width so that a variation of the resistance value of the primary resistor in response to a variation of the substrate temperature may be suppressed; a first voltage generator generating a first voltage that varies in response to the substrate temperature; a second voltage generator generating a plurality of second voltages, each of the second voltages specifying a voltage level at which the first voltage causes a switching operation of the corrected resistance value of the resistance corrector to be performed; and a resistance switch unit switching the corrected resistance value of the resistance corrector in response to comparing the first voltage and each of the second voltages, wherein: the primary resistor and resistance corrector together provide a temperature-compensated resistance.