Operational transconductance amplifier with matched outputs

Details Operational transconductance amplifier with matched outputs Operational transconductance amplifier with matched outputs

1993-11-10

1994-11-08

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including current mirror amplifier

330310, 330295, H03F 368

Patent

active

053630610

ABSTRACT:
A multi-output integrated circuit amplifier (500) consists of a first primary current mirror (510), and a plurality of secondary current mirrors (520). The first primary current mirror (510) implemented in a single substrate and having a first primary input (511). The first primary current mirror (510) generates a plurality of first inverted primary current outputs in response to a first current signal coupled to the first primary input (511). The plurality of secondary current mirrors are implemented in the same single substrate and each has a secondary input coupled to a unique one of the plurality of primary current outputs of the first primary current mirror (510), each of said plurality of secondary current mirrors (520) having a gain, and each of said plurality of secondary current mirrors (520) generating an inverted secondary current output signal, the magnitude of which is determined substantially by the unique one of the plurality of primary current outputs coupled thereto and the gain thereof.

REFERENCES:
patent: 5142696 (1992-08-01), Kosiec et al.
patent: 5165054 (1992-11-01), Platt et al.
"Analog MOS Integrated Circuits For Signal Processing" by R. Gregorian and G. Temes. Copyright 1986 by John Wiley & Sons, Inc. Reference pages are 251-257, 126-135 and 157-172.

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