Current mirror having increased output swing

Details Current mirror having increased output swing Current mirror having increased output swing

1991-04-16

1992-08-25

Kuntz, Curtis

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

323315, 330288, H04B 700, G05F 316, H03F 304

Patent

active

051426960

ABSTRACT:
A current mirror having improved turn-on and turn-off characteristics capable of operation an expanded voltage range. A cascode circuit comprising a portion of the current mirror is of a high characteristic impedance to increase thereby the voltages over which the current mirror may generate a constant current output. A switching circuit comprised of tandemly-positioned transistors having differing transistor characteristics decreases the transistor turn-on and turn-off times to enhance the characteristics of the current mirror.

REFERENCES:
patent: 4550284 (1985-10-01), Sooch
patent: 4912433 (1990-03-01), Moregi et al.

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