Low-voltage differential amplifier

Details Low-voltage differential amplifier Low-voltage differential amplifier

1995-05-03

1996-06-25

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330260, H03F 345

Patent

active

055304036

ABSTRACT:
A low-voltage differential amplifier (10) includes a circuit (12) having a differential pair (14) and loads (22 and 24). The first load (22) can include a first embedded differential amplifier (30) and an output transistor (32) and the second load (24) can include a second embedded differential amplifier (36) and an output transistor (38). The differential amplifier (10) can provide a wide-voltage operable range. The differential amplifier (10) is particularly useful in connection with low-voltage temperature compensated crystal oscillators.

REFERENCES:
patent: 5442318 (1995-08-01), Badyal et al.
Fisher, "A High-Performance CMOS Power Amplifier", IEEE Journal Of Solid-State Circuits, vol. SC-20, No. 6 Dec. 1985, pp. 1200-1205.
"A Compact Power-Efficient 3 V CMOS Rail-to-Rail Input/Output Operational Amplifier for VLSI Cell Libraries," IEEE Journal of Solid-State Circuits, vol. 29, No. 12, Dec. 1994; R. Hogervorst, J. Tero, R. Eschauzier and J. Huijsing; pp. 1505-1513.

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