Precision temperature-stable current sources/sinks

Details Precision temperature-stable current sources/sinks Precision temperature-stable current sources/sinks

1988-12-05

1989-08-01

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

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

323907, 330288, G05F 328

Patent

active

048536105

ABSTRACT:
Programmable monolithic integrated circuit current mirrors configured as either current sources or current sinks include mixed MOS and bipolar technology on a substrate, wherein the master and slave elements each include a silicon-based emitter resistor having a positive temperature coefficient matched to the negative temperature coefficient of the V.sub.be of an associated bipolar transistor, for making the ratios of the master element current to the individual slave element currents substantially insensitive to dynamic temperature gradients produced in the associated substrate. Each slave is independently and individually compensated.

REFERENCES:
patent: 3886435 (1975-05-01), Steckler
patent: 4051441 (1977-09-01), Wheatley
patent: 4055811 (1977-10-01), Wheatley
patent: 4243948 (1981-01-01), Schade
patent: 4262244 (1981-04-01), Price, Jr.
patent: 4398760 (1983-08-01), Neidorff
patent: 4500831 (1985-02-01), Akram
patent: 4602207 (1986-07-01), Kim et al.
patent: 4677368 (1987-06-01), Bynum
patent: 4779061 (1988-10-01), Matthies

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