Delta V.sub.BE bias current reference circuit

Details Delta V.sub.BE bias current reference circuit Delta V.sub.BE bias current reference circuit

1981-12-14

1984-05-22

Anagnos, Larry N.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307304, 323315, G05F 316, H03L 100, H03L 500

Patent

active

044503679

ABSTRACT:
A bias current reference circuit is disclosed having a first diode-connected bipolar device connected in series with an MOS device to develop a reference voltage which is proportional to a bias current. The reference voltage is used by an MOS device connected in series with a resistor which is connected in series with a second diode-connected bipolar device to develop a reference current which is proportional to the difference in the base to emitter voltages of the two bipolar devices. The reference current is used by a diode-connected MOS device to develop a bias voltage which is proportional to the reference current. The bias voltage in turn is used by another MOS device to develop the bias current in proportion to the bias voltage. The bias voltage is also used by other MOS devices to provide similar bias currents. In the disclosed embodiment, such a bias current can be used by a diode-connected CMOS device to develop a complementary bias voltage.

REFERENCES:
patent: 3886435 (1975-05-01), Steckler
patent: 4342926 (1982-08-01), Whatley
patent: 4361797 (1982-11-01), Kojima et al.
Bonnet et al., "Active Starter Circuit For Closed-Loop Current Mirror", IBM Tech. Disl. Bull., vol. 22, No. 1, p. 148, Jun. 1979.
Bingham, "CMOS: Higher Speeds, More Drive and Analog Capability Expand its Horizons", Electronic Design 23, Nov. 8, 1978, pp. 74-82.
Tzanateas et al., "A CMOS Bandgap Voltage Reference", IEEE Journal of Solid State Circuits, vol. SC-14, No. 3, pp. 655-657, Jun. 1979.

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