Abstract

This paper proposes a 10-bit DAC for LCD column driver ICs. This architecture achieves 10-bit resolution with a compact die size smaller than that of a conventional 8-bit resistor-string DAC (RDAC). The proposed DAC combines a 6-bit RDAC and a 4-bit DAC-embedded op with 1.6-bit current-mode interpolation cells. The 6-bit RDAC uses a one-voltage selector instead of a two-voltage selector; therefore, it requires a smaller silicon die area for the voltage selector. Fewer differential pairs are required for the voltage interpolation because the DAC-embedded op uses 1.6-bit interpolation cells with binary-weighted reference voltages. This further reduces the silicon die area. The 10-bit DAC prototype was realized in 0.35-μm CMOS technology with the worst DNL/INL of 0.45/0.93 LSB. The 10-bit DAC occupies only 64% of the conventional 8-bit RDAC area.

© 2013 IEEE

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  2. D. Marano, G. Palumbo, S. Pennisi, "A new compact low-power high-speed rail-to-rail class-B buffer for LCD applications," J. Display Technol. 6, 184-190 (2010).
  3. S.-Y. Park, S.-H. Son, W.-S. Chung, "High voltage high speed low power rail-to-rail source driver for 8-bit large TFT LCD applications," IEEE Trans. Consumer Electron. 53, 1589-1594 (2007).
  4. C.-W. Lu, L.-C. Huang, "A 10-bit LCD column driver with piecewise linear digital-to-analog converters," IEEE J. Solid-State Circuits 43, 371-378 (2008).
  5. J.-K. Woo, D.-Y. Shin, D.-K. Jeong, S. Kim, "High-speed 10-bit LCD column driver with a split DAC and a class-AB output buffer," IEEE Trans. Consumer Electron. 55, 1431-1438 (2009).
  6. C.-W. Lu, C.-C. Shen, W.-C. Chen, "An area-efficient fully R-DAC-based TFT-LCD column driver," IEEE Trans. Circuits Syst. I, Reg. Papers 57, 2588-2601 (2010).
  7. C. Park, K.-D. Kim, S.-W. Lee, G.-S. Park, S.-T. Ryu, G.-H. Cho, "A 10 b linear interpolation DAC using body-transconductance control for AMLCD column driver," IEEE Asian Solid-State Circuits Conf. Papers (2010) pp. 1-4.
  8. M. J. Bell, "An LCD column driver using a switch capacitor DAC," IEEE Int. Solid-State Circuits Conf. Dig. Tech. Papers (2005) pp. 556-557.
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  11. J.-S. Kang, J.-H. Kim, S.-Y. Kim, J.-Y. Song, O.-K. Kwon, Y.-J. Lee, B.-H. Kim, C.-W. Park, K.-S. Kwon, W.-T. Choi, S.-K. Yun, I.-J. Yeo, K.-B. Han, T.-S. Kim, S.-I. Park, "A 10 b driver IC for a spatial optical modulator for full HDTV applications," IEEE Int. Solid-State Circuits Conf. Dig. Tech. Papers (2007) pp. 138-139.
  12. J.-S. Kang, J.-H. Kim, S.-Y. Kim, J.-Y. Song, O.-K. Kwon, Y.-J. Lee, B.-H. Kim, C.-W. Park, K.-S. Kwon, W.-T. Choi, S.-K. Yun, I.-J. Yeo, K.-B. Han, T.-S. Kim, S.-I. Park, "10-bit driver IC using 3-bit DAC embedded operational amplifier for Spatial Optical Modulators (SOMs)," IEEE J. Solid-State Circuits 42, 2913-2922 (2007).
  13. Y.-J. Jeon, H.-M. Lee, S.-W. Lee, G.-H. Cho, H. R. Kim, Y.-K. Choi, M. Lee, "A piecewise-linear 10 b DAC architecture with drain-current modulation for compact AMLCD driver ICs," IEEE Int. Solid-State Circuits Conf. Dig. Tech. Papers (2009) pp. 264-265.
  14. Y.-J. Jeon, H.-M. Lee, S.-W. Lee, G.-H. Cho, H.-R. Kim, Y.-K. Choi, M. Lee, "A piecewise linear 10 bit DAC architecture with drain current modulation for compact LCD driver ICs," IEEE J. Solid-State Circuits 44, 3659-3675 (2009).
  15. H.-M. Lee, Y.-J. Jeon, S.-W. Lee, G.-H. Cho, H.-R. Kim, Y.-K. Choi, M. Lee, "A 10 b column driver with variable-current-control interpolation for mobile active-matrix LCDs," IEEE Int. Solid-State Circuits Conf. Dig. Tech. Papers (2009) pp. 266-267.
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  18. S. Yoo, J. Jung, J.-J. Nam, H. Seo, K. Lee, Y. Song, J. Ko, J.-P. Lim, J. Kim, B.-H. Kim, Y. Cho, J.-S. Kim, "A 720-channel LCD source driver with a 12-bit segmented R-C DAC," SID Int. Symp. Seminar & Exhib. Dig. Tech. Papers (2008) pp. 882-884.
  19. K. Umeda, Y. Hori, K. Nakajima, "A novel linear digital-to-analog converter using capacitor coupled Adder for LCD driver ICs," SID Int. Symp. Seminar & Exhib. Dig. Tech. Papers (2008) pp. 885-888.
  20. B. Razavi, Design of Analog Integrated Circuits, Int. Edition pp. 27.
  21. A. Atac, A. Geller, R. Wunderlich, S. Heinen, "A low power high GBW fully differential subthreshold CMOS opamp for CT ΔΣ modulators," 7th Conf. on Ph.D. Res. Microelectronics and Electronics (PRIME) (2011) pp. 205-208.
  22. A. S. Sedra, K. C. Smith, Microelectronic Circuits pp. 627-628.
  23. C.-W. Lu, "A rail-to-rail class-AB amplifier with an offset cancellation for LCD drivers," IEEE J. Solid-State Circuits 44, 525-537 (2009).

2011 (1)

2010 (2)

D. Marano, G. Palumbo, S. Pennisi, "A new compact low-power high-speed rail-to-rail class-B buffer for LCD applications," J. Display Technol. 6, 184-190 (2010).

C.-W. Lu, C.-C. Shen, W.-C. Chen, "An area-efficient fully R-DAC-based TFT-LCD column driver," IEEE Trans. Circuits Syst. I, Reg. Papers 57, 2588-2601 (2010).

2009 (3)

Y.-J. Jeon, H.-M. Lee, S.-W. Lee, G.-H. Cho, H.-R. Kim, Y.-K. Choi, M. Lee, "A piecewise linear 10 bit DAC architecture with drain current modulation for compact LCD driver ICs," IEEE J. Solid-State Circuits 44, 3659-3675 (2009).

C.-W. Lu, "A rail-to-rail class-AB amplifier with an offset cancellation for LCD drivers," IEEE J. Solid-State Circuits 44, 525-537 (2009).

J.-K. Woo, D.-Y. Shin, D.-K. Jeong, S. Kim, "High-speed 10-bit LCD column driver with a split DAC and a class-AB output buffer," IEEE Trans. Consumer Electron. 55, 1431-1438 (2009).

2008 (1)

C.-W. Lu, L.-C. Huang, "A 10-bit LCD column driver with piecewise linear digital-to-analog converters," IEEE J. Solid-State Circuits 43, 371-378 (2008).

2007 (2)

S.-Y. Park, S.-H. Son, W.-S. Chung, "High voltage high speed low power rail-to-rail source driver for 8-bit large TFT LCD applications," IEEE Trans. Consumer Electron. 53, 1589-1594 (2007).

J.-S. Kang, J.-H. Kim, S.-Y. Kim, J.-Y. Song, O.-K. Kwon, Y.-J. Lee, B.-H. Kim, C.-W. Park, K.-S. Kwon, W.-T. Choi, S.-K. Yun, I.-J. Yeo, K.-B. Han, T.-S. Kim, S.-I. Park, "10-bit driver IC using 3-bit DAC embedded operational amplifier for Spatial Optical Modulators (SOMs)," IEEE J. Solid-State Circuits 42, 2913-2922 (2007).

2005 (1)

M. J. Bell, "An LCD column driver using a switch capacitor DAC," IEEE J. Solid-State Circuits 40, 2756-2765 (2005).

IEEE J. Solid-State Circuits (5)

C.-W. Lu, L.-C. Huang, "A 10-bit LCD column driver with piecewise linear digital-to-analog converters," IEEE J. Solid-State Circuits 43, 371-378 (2008).

M. J. Bell, "An LCD column driver using a switch capacitor DAC," IEEE J. Solid-State Circuits 40, 2756-2765 (2005).

Y.-J. Jeon, H.-M. Lee, S.-W. Lee, G.-H. Cho, H.-R. Kim, Y.-K. Choi, M. Lee, "A piecewise linear 10 bit DAC architecture with drain current modulation for compact LCD driver ICs," IEEE J. Solid-State Circuits 44, 3659-3675 (2009).

J.-S. Kang, J.-H. Kim, S.-Y. Kim, J.-Y. Song, O.-K. Kwon, Y.-J. Lee, B.-H. Kim, C.-W. Park, K.-S. Kwon, W.-T. Choi, S.-K. Yun, I.-J. Yeo, K.-B. Han, T.-S. Kim, S.-I. Park, "10-bit driver IC using 3-bit DAC embedded operational amplifier for Spatial Optical Modulators (SOMs)," IEEE J. Solid-State Circuits 42, 2913-2922 (2007).

C.-W. Lu, "A rail-to-rail class-AB amplifier with an offset cancellation for LCD drivers," IEEE J. Solid-State Circuits 44, 525-537 (2009).

IEEE Trans. Circuits Syst. I, Reg. Papers (1)

C.-W. Lu, C.-C. Shen, W.-C. Chen, "An area-efficient fully R-DAC-based TFT-LCD column driver," IEEE Trans. Circuits Syst. I, Reg. Papers 57, 2588-2601 (2010).

IEEE Trans. Consumer Electron. (2)

J.-K. Woo, D.-Y. Shin, D.-K. Jeong, S. Kim, "High-speed 10-bit LCD column driver with a split DAC and a class-AB output buffer," IEEE Trans. Consumer Electron. 55, 1431-1438 (2009).

S.-Y. Park, S.-H. Son, W.-S. Chung, "High voltage high speed low power rail-to-rail source driver for 8-bit large TFT LCD applications," IEEE Trans. Consumer Electron. 53, 1589-1594 (2007).

J. Display Technol. (2)

Other (13)

C. Park, K.-D. Kim, S.-W. Lee, G.-S. Park, S.-T. Ryu, G.-H. Cho, "A 10 b linear interpolation DAC using body-transconductance control for AMLCD column driver," IEEE Asian Solid-State Circuits Conf. Papers (2010) pp. 1-4.

M. J. Bell, "An LCD column driver using a switch capacitor DAC," IEEE Int. Solid-State Circuits Conf. Dig. Tech. Papers (2005) pp. 556-557.

Y.-K. Choi, Z.-Y. Wu, K. M. Kim, Y. H. Lee, M. S. Cho, H. S. Kim, D. H. Lee, W.-G. Jung, "A compact low-power CDAC architecture for mobile TFT-LCD driver ICs," IEEE Int. Solid-State Circuits Conf. Dig. Tech. Papers (2008) pp. 176-177.

J.-S. Kang, J.-H. Kim, S.-Y. Kim, J.-Y. Song, O.-K. Kwon, Y.-J. Lee, B.-H. Kim, C.-W. Park, K.-S. Kwon, W.-T. Choi, S.-K. Yun, I.-J. Yeo, K.-B. Han, T.-S. Kim, S.-I. Park, "A 10 b driver IC for a spatial optical modulator for full HDTV applications," IEEE Int. Solid-State Circuits Conf. Dig. Tech. Papers (2007) pp. 138-139.

H.-M. Lee, Y.-J. Jeon, S.-W. Lee, G.-H. Cho, H.-R. Kim, Y.-K. Choi, M. Lee, "A 10 b column driver with variable-current-control interpolation for mobile active-matrix LCDs," IEEE Int. Solid-State Circuits Conf. Dig. Tech. Papers (2009) pp. 266-267.

Y.-C. Sung, S.-M. So, J.-K. Kim, O.-K. Kwon, "10 bit source driver with resistor-resistor-string digital to analog converter," SID Symp. Dig. (2005) pp. 1099-1101.

C.-W. Lu, P.-Y. Yin, C.-M. Hsiao, M.-C. F. Chang, "A 10 b resistor-resistor-string DAC with current compensation for compact LCD driver ICs," IEEE Int. Solid-State Circuits Conf. Dig. Tech. Papers (2011) pp. 318-319.

S. Yoo, J. Jung, J.-J. Nam, H. Seo, K. Lee, Y. Song, J. Ko, J.-P. Lim, J. Kim, B.-H. Kim, Y. Cho, J.-S. Kim, "A 720-channel LCD source driver with a 12-bit segmented R-C DAC," SID Int. Symp. Seminar & Exhib. Dig. Tech. Papers (2008) pp. 882-884.

K. Umeda, Y. Hori, K. Nakajima, "A novel linear digital-to-analog converter using capacitor coupled Adder for LCD driver ICs," SID Int. Symp. Seminar & Exhib. Dig. Tech. Papers (2008) pp. 885-888.

B. Razavi, Design of Analog Integrated Circuits, Int. Edition pp. 27.

A. Atac, A. Geller, R. Wunderlich, S. Heinen, "A low power high GBW fully differential subthreshold CMOS opamp for CT ΔΣ modulators," 7th Conf. on Ph.D. Res. Microelectronics and Electronics (PRIME) (2011) pp. 205-208.

A. S. Sedra, K. C. Smith, Microelectronic Circuits pp. 627-628.

Y.-J. Jeon, H.-M. Lee, S.-W. Lee, G.-H. Cho, H. R. Kim, Y.-K. Choi, M. Lee, "A piecewise-linear 10 b DAC architecture with drain-current modulation for compact AMLCD driver ICs," IEEE Int. Solid-State Circuits Conf. Dig. Tech. Papers (2009) pp. 264-265.

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