Reference voltage generator for use in and a/d or d/a converter

Details Reference voltage generator for use in and a/d or d/a converter Reference voltage generator for use in and a/d or d/a converter

G - Physics

05

B

328/167, 354/67

G05B 1/01 (2006.01) H01L 27/06 (2006.01) H03M 1/00 (2006.01)

Patent

CA 1164536

ABSTRACT Disclosed is a simple, small-sized reference voltage generator for use in an analog to digital or digital to analog converter. It comprises a power source for generating a voltage and a voltage adjusting circuit connected to the power source. The voltage adjusting circuit is composed of N (N being a plural number) polysilicon resistors connected serially and N polysilicon fuses connected in parallel to both ends of each of the N resistors so as to adjust, when cut-off, the output voltage of the power source, A resistor network is connected to the voltage adjusting circuit and is composed of M (M being plural) polysilicon resistors for providing (M-1) reference voltages based on the output voltage of the adjusting circuit.

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