Fully-differential operational amplifier for MOS integrated circ

Details Fully-differential operational amplifier for MOS integrated circ Fully-differential operational amplifier for MOS integrated circ

1986-07-18

1988-06-07

Wan, Gene

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330260, H03F 345

Patent

active

047499567

ABSTRACT:
A single-stage fully differential operational amplifier has a high open-loop gain and can be incorporated in a very small area of silicon and has a very small number of bias interconnection lines. The amplifier includes two identical arms each having similar bias and loads, transconductance and common-mode feedback elements. Each of the aforementioned three elements in each branch have the same current flowing therethrough when the amplifier is quiescent.

REFERENCES:
patent: 4616189 (1986-10-01), Pengue, Jr.

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