This paper presents the experimental validation of a low-power, large output swing, class-AB buffer amplifier for column drivers of active-matrix flatpanel displays. By exploiting two complementary input amplifiers and a dual-path push-pull output stage the proposed circuit achieves high-drive performance and rail-to-rail operation. In addition, two current boosters allow area optimization of the output diving transistors by dynamically lowering their threshold voltage. Implemented in a standard triple-well CMOS 0.35-μm technology and supplied from a 3-V supply, the proposed buffer amplifier can drive a 1-nF column line load within a 1.11-μs settling time under a full voltage swing, while drawing only 1.6 μA quiescent current and occupying 5562 μm2 of silicon area. As compared to the state of the art, the best Figure of Merit (pF/μ∙μA) is found.

Dual push-pull high-speed rail-to-rail CMOS buffer amplifier for flat-panel displays

Grasso, A. D.
Primo
Investigation
;
Palumbo, G.
Investigation
;
Pennisi, S.
Investigation
2018-01-01

Abstract

This paper presents the experimental validation of a low-power, large output swing, class-AB buffer amplifier for column drivers of active-matrix flatpanel displays. By exploiting two complementary input amplifiers and a dual-path push-pull output stage the proposed circuit achieves high-drive performance and rail-to-rail operation. In addition, two current boosters allow area optimization of the output diving transistors by dynamically lowering their threshold voltage. Implemented in a standard triple-well CMOS 0.35-μm technology and supplied from a 3-V supply, the proposed buffer amplifier can drive a 1-nF column line load within a 1.11-μs settling time under a full voltage swing, while drawing only 1.6 μA quiescent current and occupying 5562 μm2 of silicon area. As compared to the state of the art, the best Figure of Merit (pF/μ∙μA) is found.
2018
buffer amplifier; class AB; CMOS technology; column drivers; Current measurement; liquid crystal display; Rail to rail amplifiers; rail-to-rail; settling time.; Simulation; Threshold voltage; Transistors; Electrical and Electronic Engineering
File in questo prodotto:
File Dimensione Formato  
r34 lcd driver.pdf

accesso aperto

Tipologia: Documento in Pre-print
Dimensione 627.29 kB
Formato Adobe PDF
627.29 kB Adobe PDF Visualizza/Apri
Dual Push-Pull High-Speed Rail-to-Rail CMOS Buffer Amplifier for Flat-Panel Displays.pdf

solo gestori archivio

Tipologia: Versione Editoriale (PDF)
Dimensione 1.17 MB
Formato Adobe PDF
1.17 MB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/332184
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 27
  • ???jsp.display-item.citation.isi??? 19
social impact