Cascode CMOS bandgap reference

Details Cascode CMOS bandgap reference Cascode CMOS bandgap reference

1985-02-11

1986-05-13

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

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

323907, 307310, G05F 320

Patent

active

045889414

ABSTRACT:
A CMOS bandgap voltage reference which is temperature stable is disclosed. The large temperature-dependent p-tub resistors of prior art arrangements are replaced with relatively small, temperature stable p+ diffusion resistors. The increase in current level needed to compensate for the decrease in resistor value is provided by a simple cascode MOS circuit located between the ratioing resistors and the VSS potential.

REFERENCES:
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patent: 4263519 (1981-04-01), Schade, Jr.
patent: 4287439 (1981-09-01), Leuschner
patent: 4317054 (1982-02-01), Caruso et al.
patent: 4375595 (1983-03-01), Ulmer et al.
patent: 4380706 (1983-04-01), Wrathall
patent: 4396883 (1983-08-01), Holloway et al.
patent: 4443753 (1984-04-01), McGlinchey
patent: 4447784 (1984-05-01), Dobkin
"A Precision Voltage Source", IEEE J. of Solid-State Circuits, vol. SC-8, No. 3, Jun. 1973, Kuijk, pp. 222-226.
"A CMOS Voltage Reference", ibid, vol. SC-13, No. 6, Dec. 1978, Tsividis et al, pp. 774-778.
"A Low-Voltage CMOS Bandgap Reference", ibid, vol. SC-14, No. 3, Jun. 1979, Vittoz et al, pp. 573-577.
"A CMOS Bandgap Voltage Reference", ibid, vol. SC-14, No. 3, Jun. 1979, Tzanateas et al, pp. 655-657.
"A New Curvature-Corrected Bandgap Reference", ibid, vol. SC-17, No. 6, Dec. 1982, Meijer et al, pp. 1139-1143.
"A Precision Curvature-Compensated CMOS Bandgap Reference", ibid, vol. SC-18, No. 6, Dec. 1983, Song et al, pp. 634-643.

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