AN 8-BIT PIPELINE ADC IN 65NM WITH 250MHZ NYQUIST FREQUENCY TO OBTAIN 6B ENOB

Authors

  • Aesha S. Zala Research Intern, GTU-CDAC, Pune India.
  • Dhwani P. Sametriya Research Intern, GTU-CDAC, Pune India.
  • Jesal P. Gajjar Research Intern, GTU-CDAC, Pune India.

Keywords:

Analog-to-Digital Converter (ADC), Interleaved Sample and Hold Circuit (ISHC), Multiplying DAC (MDAC), high speed, low power

Abstract

In this paper, an 8-bit Pipeline ADC, with 1V supply at 250MHz Nyquist frequency has been proposed. The ADC architecture uses 1.5bit stages as sub-ADCs for power reduction. This work targets 6b ENOB at both low and high input frequencies (ranging from 1-7MHz). The design has been implemented in 65nm CMOStechnology. Comparative power consumption for 180nm, 90nm and 65nm is obtained which shows a reasonable power reduction of 3.067mW from 180nm to 65nm.

References

R. Jacob Baker, “CMOS Mixed Signal Circuit Design”, A John Wiley & Sons Inc. Publication, 2014.

Timmy Sundstrom, Christer Svensson, and Atila Alvandpour,” A 2.4 GS/s, 4.9 ENOB at Nyquist, Single-channel Pipeline ADC in 65nm CMOS”, in IEEE Journal of Solid-State Circuits, Vol. 46, No. 7, July 2011.

Behzad Razavi, “Design of Analog CMOS Integrated Circuits”, McGraw Hills Book Co., 2011.

D. Meganathan, Axel Jantsch, “A Low-Power, Medium-Resolution, High-Speed CMOS Pipelined ADC” in NORCHIP-2010, 15-16 Nov. 2010.

Dong-Young Chang, Gil-Cho Ahn, and Un-Ku Moon,”Sub-1-V Design Techniques for High-Linearity Multistage/Pipelined Analog-to-Digital Converters” in IEEE Transactions on Circuits and Systems—I: Regular Papers, Vol. 52, No. 1, January 2005.

Manas Kumar Hati, Tamn K. Bhattacharyya, “Design of Low power Parallel Pipeline ADC in 180nm standard CMOS Process”, in Communications and Signal Processing (ICCSP), 2011 International Conference on 10-12 Feb. 2011.

Entienne Sicard, Sonia Delmas Bendhia, “Basic CMOS Cell Design”, McGraw Hills Book Co., 2007.

Additional Files

Published

15-04-2016

How to Cite

Aesha S. Zala, Dhwani P. Sametriya, & Jesal P. Gajjar. (2016). AN 8-BIT PIPELINE ADC IN 65NM WITH 250MHZ NYQUIST FREQUENCY TO OBTAIN 6B ENOB. International Education and Research Journal (IERJ), 2(4). Retrieved from http://ierj.in/journal/index.php/ierj/article/view/222