670-nA CMOS OTA FOR AMLCD COLUMN DRIVER-Reference-Cited by-同舟云学术

670-nA CMOS OTA FOR AMLCD COLUMN DRIVER

Published:2009-04 Issue:02 Volume:18 Page:339-350
ISSN:0218-1266
Container-title:Journal of Circuits, Systems and Computers
language:en
Short-container-title:J CIRCUIT SYST COMP

Author:

PENNISI SALVATORE¹,DI FAZIO SALVATORE²,SIGNORELLI TIZIANA²,PULVIRENTI FRANCESCO²

Affiliation:

1. DIEES, University of Catania, Viale A. Doria, 6, Catania, I-95125, Italy

2. STMicroelectronics, Photovoltaic B.U., Stradale Primosole, 50, Catania I-951211, Italy

Abstract

A transconductance operational amplifier specifically optimized for a switched-capacitor LCD column driver is presented. It exploits MOS transistors in subthreshold region and dissipates 670 nA at DC. Despite this extremely low quiescent current value, the amplifier exhibits a DC gain of about 80 dB, and a gain-bandwidth product and phase margin around 2 MHz and 70°, with a load capacitance of 500 fF. Besides, working in class AB, the solution provides a slew rate equal to 27 V/μs. With exception of the DC gain, these performances represent an improvement with respect to comparable solutions, and are obtained while halving the area occupation.

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Hardware and Architecture,Electrical and Electronic Engineering,Hardware and Architecture

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218126609005101

Reference15 articles.

1. A 402-output TFT-LCD driver IC with power control based on the number of colors selected

2. 1-billion-color TFT-LCD TV with full HD format

3. On-Panel Output Buffer With Offset Compensation Technique for Data Driver in LTPS Technology

4. An LCD column driver using a switch capacitor DAC

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