Multi-stage amplifier with capacitive nesting and multi-path for

Details Multi-stage amplifier with capacitive nesting and multi-path for Multi-stage amplifier with capacitive nesting and multi-path for

1991-02-11

1992-10-13

Mullins, James B.

Amplifiers

Signal feedback

Phase shift means in loop path

330151, 330260, 330294, H03F 134

Patent

active

051554470

ABSTRACT:
A multi-stage amplifier utilizes capacitive nesting of three or more amplifier stages in combination with multiple feed-forward paths to achieve frequency compensation. Two stages (A.sub.M and A.sub.O) in cascade are first nested with a pole-splitting capacitor (C1) to form a stable device. A stable three-stage amplifier is then created by nesting the two-stage device and a further stage (A.sub.I) with another pole-splitting capacitor (C2) where feed-forward paths are provided from the further stage to both of the other stages.

REFERENCES:
patent: 4502017 (1985-02-01), Van De Plassche et al.
patent: 4559502 (1985-12-01), Huijsing
"NE5533/5533A, NE/SA/SE5534/5534A Dual and Single Low Noise Op Amp", Signetics Linear Data Manual, Industrial, vol. 2, Signetics Co., 1989, pp. 4-106 to 4-111.

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