Voltage reference circuit

Details Voltage reference circuit Voltage reference circuit

1980-12-24

1983-04-19

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307310, 307315, 323313, H03K 326, H03K 301

Patent

active

043807062

ABSTRACT:
A voltage reference source is provided which is temperature stable and can be made by standard CMOS processes. The voltage reference can provide an output voltage which is equal to twice the bandgap voltage. The voltage reference circuit uses a differential amplifier which has an output coupled to an additional amplifying stage. Two substrate bipolar transistors are used wherein the emitter current density of one of the transistors is larger than the emitter current density of the other transistor. An additional transistor is inserted between the output of the amplifying stage and the substrate bipolar transistors thereby providing the output voltage of twice the bandgap voltage.

REFERENCES:
patent: 3286200 (1966-11-01), Foulger
patent: 4071813 (1978-01-01), Dobkin
patent: 4176308 (1970-11-01), Dobkin et al.
patent: 4287439 (1981-09-01), Leuschner

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