Linear CMOS output stage

Details Linear CMOS output stage Linear CMOS output stage

1991-05-28

1992-05-12

Laroche, Eugene R.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330255, 330257, H03F 345, H03F 316

Patent

active

051131480

ABSTRACT:
A class-AB push-pull CMOS output stage is driven over a control line with a drive potential from an input stage. The control line feeds the gate terminals of a complementary transistor pair whose first transistor serves as a first push-pull output transistor and whose second transistor is connected to the gate terminal of a second push-pull output transistor via a current-mirror arrangement. The source terminals of the first and second transistors are tied to a first fixed potential and a second fixed potential, respectively, the latter being stabilized by a low-impedance active compensation circuit.

REFERENCES:
patent: 4480230 (1984-10-01), Brehmer et al.
patent: 4529948 (1985-07-01), Bingham
patent: 4794349 (1988-12-01), Senderowicz et al.
patent: 4803441 (1989-02-01), Noro
patent: 4897612 (1990-01-01), Carroll
patent: 5039953 (1991-08-01), Su
patent: 5057789 (1991-10-01), Nagaraj
Joseph N. Babanezhad et al., "A Programmable Gain/Loss Circuit," IEEE Journal of Solid-State Circuits, vol. SC-22, No. 6, Dec. 1987, pp. 1082-1089.

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