A low offset high voltage swing rail-to-rail buffer amplifier for LCD driver

Guo Teng Hong, Chih-Hsiung Shen

研究成果: Conference contribution

3 引文 斯高帕斯(Scopus)

摘要

The size of LCDs is getting larger in particular , it is essential to compromise the driving ability. So , source drivers with high performance , high resolution , and low power dissipation will achieve more additional value. This paper presents a design and implementation of using 10-bit multiple DAC ( Digital to Analog Converter ) for the driver , and proposes a rail-to-rail output buffer with low offset and high driving ability. We designed a class-B output buffer with offset compensation ability to reduce the nonlinearity of output voltage. With the H-SPICE model of TSMC 0.35μm 2P4M 3.3V / 5V process , the maximum offset is less than 2mV , and the input / output swing are nearly full swing. Besides , it also performs a rail-to-rail swing range and high slew rate of 14 V / μs and 11.5 V / μs for rising and falling edges under a 400 pF capacitance load. For high driving capability , two push-pull output stages are used , two frequency compensation stages are also introduced for stability , one is the miller compensation with 0.04 pF capacitance , and the other is zero compensation with 0.1 kΩ added between two push-pull output stages for stable driving under different capacitance loads. The result exhibits that the settling time are within 5μs under the max voltage swing with voltage 5V under a 400 pF capacitance load. Even under a 1000 pF capacitance load , it still has the settling time of 1.52 μs and 1.80 μs for rising and falling edges , respectively. The effective area of this buffer is only 100 × 100 μm2 with build-in offset voltage holding capacitor.

原文English
主出版物標題IEEE Conference on Electron Devices and Solid-State Circuits 2007, EDSSC 2007
頁面841-846
頁數6
DOIs
出版狀態Published - 2007 十二月 1
事件IEEE Conference on Electron Devices and Solid-State Circuits 2007, EDSSC 2007 - Tainan, Taiwan
持續時間: 2007 十二月 202007 十二月 22

出版系列

名字IEEE Conference on Electron Devices and Solid-State Circuits 2007, EDSSC 2007

Other

OtherIEEE Conference on Electron Devices and Solid-State Circuits 2007, EDSSC 2007
國家Taiwan
城市Tainan
期間07-12-2007-12-22

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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  • 引用此

    Hong, G. T., & Shen, C-H. (2007). A low offset high voltage swing rail-to-rail buffer amplifier for LCD driver. 於 IEEE Conference on Electron Devices and Solid-State Circuits 2007, EDSSC 2007 (頁 841-846). [4450257] (IEEE Conference on Electron Devices and Solid-State Circuits 2007, EDSSC 2007). https://doi.org/10.1109/EDSSC.2007.4450257