A low-quiescent current two-input/output buffer amplifier for LCDs

Chih Wen Lu; Ping Yeh Yin; Hsuan Lun Kuo; Salvatore Pennisi

doi:10.1109/ISCAS.2012.6271664

A low-quiescent current two-input/output buffer amplifier for LCDs

Chih Wen Lu^*, Ping Yeh Yin, Hsuan Lun Kuo, Salvatore Pennisi

^*Corresponding author for this work

Institute of Lighting and Energy Photonics

Research output: Contribution to conference › Paper › peer-review

3 Scopus citations

Abstract

This study proposes a low-quiescent current two-input/output buffer amplifier for LCD applications. A current reuse technique is employed in the output stage of the buffer amplifier to reduce the quiescent current consumption. An experimental prototype 6-bit LCD column driver with the proposed buffer amplifiers implemented in a 0.35-μm CMOS technology demonstrates that an average value of 0.6 μA static current is consumed in one channel driver. The settling time to settle within 0.2% of the final voltage is 6 μs under a 30-K-resistance and 30-pF-capacitance load. The area of this two-input/output buffer amplifier is 21.5 μm × 190 μm.

Original language	English
Pages	1975-1978
Number of pages	4
DOIs	https://doi.org/10.1109/ISCAS.2012.6271664
State	Published - 2012
Event	2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012 - Seoul, Korea, Republic of Duration: 20 May 2012 → 23 May 2012

Conference

Conference	2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012
Country/Territory	Korea, Republic of
City	Seoul
Period	20/05/12 → 23/05/12

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10.1109/ISCAS.2012.6271664

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abstract = "This study proposes a low-quiescent current two-input/output buffer amplifier for LCD applications. A current reuse technique is employed in the output stage of the buffer amplifier to reduce the quiescent current consumption. An experimental prototype 6-bit LCD column driver with the proposed buffer amplifiers implemented in a 0.35-μm CMOS technology demonstrates that an average value of 0.6 μA static current is consumed in one channel driver. The settling time to settle within 0.2% of the final voltage is 6 μs under a 30-K-resistance and 30-pF-capacitance load. The area of this two-input/output buffer amplifier is 21.5 μm × 190 μm.",

author = "Lu, {Chih Wen} and Yin, {Ping Yeh} and Kuo, {Hsuan Lun} and Salvatore Pennisi",

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doi = "10.1109/ISCAS.2012.6271664",

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AU - Lu, Chih Wen

AU - Yin, Ping Yeh

AU - Kuo, Hsuan Lun

AU - Pennisi, Salvatore

PY - 2012

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N2 - This study proposes a low-quiescent current two-input/output buffer amplifier for LCD applications. A current reuse technique is employed in the output stage of the buffer amplifier to reduce the quiescent current consumption. An experimental prototype 6-bit LCD column driver with the proposed buffer amplifiers implemented in a 0.35-μm CMOS technology demonstrates that an average value of 0.6 μA static current is consumed in one channel driver. The settling time to settle within 0.2% of the final voltage is 6 μs under a 30-K-resistance and 30-pF-capacitance load. The area of this two-input/output buffer amplifier is 21.5 μm × 190 μm.

AB - This study proposes a low-quiescent current two-input/output buffer amplifier for LCD applications. A current reuse technique is employed in the output stage of the buffer amplifier to reduce the quiescent current consumption. An experimental prototype 6-bit LCD column driver with the proposed buffer amplifiers implemented in a 0.35-μm CMOS technology demonstrates that an average value of 0.6 μA static current is consumed in one channel driver. The settling time to settle within 0.2% of the final voltage is 6 μs under a 30-K-resistance and 30-pF-capacitance load. The area of this two-input/output buffer amplifier is 21.5 μm × 190 μm.

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DO - 10.1109/ISCAS.2012.6271664

M3 - Paper

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T2 - 2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012

Y2 - 20 May 2012 through 23 May 2012

ER -

A low-quiescent current two-input/output buffer amplifier for LCDs

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