High density integrated circuit with high output impedance

Details High density integrated circuit with high output impedance High density integrated circuit with high output impedance

1993-06-14

1994-08-09

Sikes, William L.

Amplifiers

With semiconductor amplifying device

Including current mirror amplifier

330292, 330300, H03F 156, H03F 345, H03F 122

Patent

active

053370210

ABSTRACT:
A circuit apparatus suitable for use as a basic building block of very small geometry integrated circuits (on the order of 1 micron and smaller) comprising (i) a current mirror circuit with a cascode output, comprising a first transistor and a second transistor connected in series, the first transistor coupled between a ground and the second transistor, and (ii) a single stage gain loop comprising a transresistance amplifier coupled between a control input of the second transistor and the series connection of the first and second transistors, wherein the circuit apparatus provides an output with high impedance output and with maximum swing capability.

REFERENCES:
patent: 5245273 (1993-09-01), Greaves et al.
patent: 5254880 (1993-10-01), Horiguchi et al.
Klaas Bult and Covert J. G. M. Gleen, "The CMOS Gain-Boosting Technique", Analog Integrated Circuits and Signal Processing 1, pp. 119-135, Kluwer Academic Publishers, Boston, Mass., 1991.

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