Buffer amplifier for source driver

Details Buffer amplifier for source driver Buffer amplifier for source driver

2006-07-27

2008-03-25

Choe, Henry (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S255000

Reexamination Certificate

active

07348848

ABSTRACT:
A buffer amplifier for source driver is disclosed. The buffer amplifier has an N-channel differential amplifier and a P-channel differential amplifier as its input stages so as to achieve rail-to-rail input, and a class AB amplifier to push-pull the output stage so as to achieve rail-to-rail output. The output stage of the buffer amplifier is capable of larger charge/discharge, is faster, and has equal charge/discharge time. More importantly, the buffer amplifier has advantages such as lower power consumption, higher slew rate, and a more stable output.

REFERENCES:
patent: 5959475 (1999-09-01), Zomorrodi
patent: 6064258 (2000-05-01), Shulman
patent: 6137360 (2000-10-01), Memida
patent: 6331846 (2001-12-01), Nakao
patent: 6812781 (2004-11-01), Tsuchiya
patent: 7068077 (2006-06-01), Reinschmidt
patent: 340995 (1998-09-01), None

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