Voltage reference circuit with a common gate output stage

Details Voltage reference circuit with a common gate output stage Voltage reference circuit with a common gate output stage

1994-11-17

1996-01-02

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

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

327543, G05F 326

Patent

active

054811791

ABSTRACT:
A voltage reference circuit, powered by a single supply voltage, is of the type having a bootstrapped V.sub.T reference source that is based on a current mirror. The voltage reference circuit includes an output stage having two transistors in series with a load resistor and outputs a regulated reference voltage generated across the load resistor. The gate of each transistor in the output stage is coupled to one node of the current mirror. At least one of the output transistors is, thus, in a common-gate amplifier configuration. The two transistor output stage provides improved regulation so that the output voltage is independent of variation in the supply voltage.

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CMOS Analog Circuit Design, Philip Allen & Douglas Holberg, 1987, pp. 246 to 249.
Microelectronic Circuits, Adel Sedra & Kenneth Smith, 1987, pp. 378 to 380, 506 and 507.

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