Low-Power, High Slew-Rate Transconductance-Boosted OP-AMP for Large Size, High Resolution TFT-LCDs

  • Choi, Jin-Chul (Division of Electrical and Computer Engineering, Hanyang University) ;
  • Kim, Seong-Joong (Division of Electrical and Computer Engineering, Hanyang University) ;
  • Sung, Yoo-Chang (Division of Electrical and Computer Engineering, Hanyang University) ;
  • Kwon, Oh-Kyong (Division of Electrical and Computer Engineering, Hanyang University)
  • Published : 2003.07.09

Abstract

For the analog output buffer in the data driver for large size and high resolution TFT-LCDs, we proposed operational amplifier (op-amp) which contains newly developed transconductance-boosted input stage which enables the low-power consumption and the high slew-rate. The slew-rate and the quiescent current of the proposed op-amp are $6.1V/{\mu}sec$ and $8{\mu}A$, respectively.

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