Single stage operational amplifier voltage reference

Details Single stage operational amplifier voltage reference Single stage operational amplifier voltage reference

1981-12-11

1984-03-20

Pellinen, A. D.

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

307297, G05F 320

Patent

active

044383886

ABSTRACT:
A single stage operational amplifier voltage reference circuit for providing a precise reference voltage to bias multiple transistor-transistor logic (TTL) interface circuits is described. The voltage reference utilizes a current mirror having ratioed transistors to source or sink whatever current is necessary to maintain the reference voltage. The reference voltage is made substantially insensitive to process variations by ratioing transistor device sizes in a current source portion to transistor device sizes in an output load voltage divider portion. A capacitor is utilized to reduce transient errors at the output.

REFERENCES:
patent: 4011471 (1977-03-01), Rockett
patent: 4112439 (1978-09-01), Kawasaki et al.
patent: 4264874 (1981-04-01), Young
patent: 4287438 (1981-09-01), Cave et al.
patent: 4330744 (1982-05-01), Embree et al.

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