IMPROVED LOW-POWER HIGH-SPEED BUFFER AMPLIFIER WITH SLEW-RATE ENHANCEMENT FOR LCD APPLICATIONS

被引：6

作者：

Marano, Davide ^{[1
]}

Palumbo, Gaetano ^{[1
]}

Pennisi, Salvatore ^{[1
]}

机构：

[1] Univ Catania, DIEES, I-95125 Catania, Italy

来源：

JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS | 2010年 / 19卷 / 02期

关键词：

Buffer amplifier; high-speed; LCD; liquid crystal display; output driver; low-power; settling time; slew rate; stability; CLASS-B BUFFER; OUTPUT STAGES; DESIGN;

D O I：

10.1142/S0218126610006086

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

The present paper addresses an improved low-power high-speed buffer amplifier topology for large-size liquid crystal display applications. The proposed buffer achieves high-speed driving performance while drawing a low quiescent current during static operation. The circuit offers enhanced slewing capabilities with a limited power consumption by exploiting a slew detector which monitors the output voltage of the input differential amplifier and outputs an additional current signal providing slew-rate enhancement at the output stage. Post-layout simulations show that the proposed buffer can drive a 1 nF column line load with 8.5 V/mu s slew-rate and 0.8 mu s settling time, while drawing only 8 mu A static current from a 3V power supply.

引用

页码：325 / 334

页数：10

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