Cmos circuit for generating a current reference

Details Cmos circuit for generating a current reference Cmos circuit for generating a current reference

G - Physics

05

F

G05F 1/56 (2006.01) G05F 3/26 (2006.01) H03L 7/089 (2006.01) G05F 3/24 (2006.01)

Patent

CA 2284956

A current reference generator comprises a pair of identical units (G1, G2) which generate respective current references (11, 12), and a circuit (CL) for the linear combination of the two references. In each of the two units, the elements (S1, S2) which, by their current-voltage characteristics, determine the working point comprise respectively a single transistor (T1) and a pair of transistors (T2, T3), of the same type as the first, connected in series. A differential amplifier (AD) maintains stable the working point of the respective unit as power supply voltage varies.

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