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IEICE TRANSACTIONS on Electronics

A Compact Low-Power Rail-to-Rail Class-B Buffer for LCD Column Driver

Ming-Chan WENG, Jiin-Chuan WU

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Summary :

This paper proposes a compact, low-power, and rail-to-rail class-B output buffer for driving the large column line capacitance of LCDs. The comparator used as a nonlinear element in feedback path is modified from the current-mirror amplifier, which has area and power advantages. The output buffer was realized in a 0.35 m CMOS process. The active area of the buffer is 8673.5 m2. With a 3.3 V supply, the measured quiescent current is 7.4 A. The settling time for 0.05-3.25 V swing to within 0.2% is 8 s.

Publication
IEICE TRANSACTIONS on Electronics Vol.E85-C No.8 pp.1659-1663
Publication Date
2002/08/01
Publicized
Online ISSN
DOI
Type of Manuscript
LETTER
Category
Electronic Circuits

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