Current generating circuit

Details Current generating circuit Current generating circuit

1988-04-20

1989-10-17

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307244, 307254, 341144, H03K 302, H03M 100

Patent

active

048749648

ABSTRACT:
A current generating circuit for dividing a current (Dynamic Element Matching) in which a portion of a plurality of transistors constituting change-over circuits arranged therein is removed by weighting the transistors for the operating periods thereof, to thereby largely reduce the number of elements, particularly in the case where a large number of bits are processed. Since the number of bits which each current generating circuit can process can be increased, the number of elements can be easily decreased, so that a source voltage can be reduced when the current generating circuits are connected in multiple stages (in a vertical piling). Further, transistors constituting switching circuits are connected in a Darlington configuration to expand the operating range (dynamic range) of the circuit.

REFERENCES:
patent: 3446989 (1969-05-01), Allen et al.
patent: 3839648 (1974-10-01), Pace
patent: 4536701 (1985-08-01), Nagano

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