The week's pick
Reseach Article
Charge Redistribution based 8 bit SAR ADC
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 62 - Number 1 |
| Year of Publication: 2013 |
| Authors: Vijay V, Bhavya R, Vipula Singh |
10.5120/10042-4625
|
Vijay V, Bhavya R, Vipula Singh . Charge Redistribution based 8 bit SAR ADC. International Journal of Computer Applications. 62, 1 ( January 2013), 6-9. DOI=10.5120/10042-4625
Abstract
An 8-bit 10 MS/s SAR A/D converter is presented. In the circuit design, a capacitor switched D/A Converter architecture, Dynamic latched comparator architecture and low power SAR logic are utilized. Design challenges and considerations are also discussed. This proposed converter is implemented based on 0. 29um CMOS logic process. With a 3. 3 V analog supply and a 5 V digital supply, the differential and integral nonlinearity are measured to be less than 0. 36 LSB and 0. 69 LSB respectively. With an input frequency of 625 KHz at 10 MS/s sampling rate and the power dissipation is measured to be 6. 62 mW.
References
- J. L. McCreary and P. R. Gray," All-MOS Charge Redistribution Analog- to – Digital Conversion Techniques- Part 1," IEEE Journal of Solid State Circuits,vol. SC -10, no. 6 , pp. 371-379,1975.
- B. Razavi and B. A. Wooley, "A 12-b 5-MSample/s Two-Step CMOS A/D Converter," IEEE JSSC Vol. 27, No. 12, December 1992.
- F. Maloberti, Design of analog-digital VLSI circuits for telecommunications and signal processing, Layout of Analog and Mixed Analog-digital Circuits, Prentice Hall, second edition, 1994, J. E. Franca and Y. Tsividis edited.
- M. J. M. Pelgrom, A. C. J. Duenmaijer and A. P. G. Welbers, "Matching Properties of MOS Transistors," IEEE Journal of Solid-State Circuits, vol. 24, no. 5, Oct. , 1989.
- P. M. Figueiredo and J. C. Vital, "Kickback Noise Reduction Techniques for CMOS Latched Comparators," IEEE Transactions on Circuits and Systems, vol. 53, no. 7, July, 2007.
- M. D. Scott, B. E. Boser and K. S. J. Pister, "An Ultralow-Energy ADC for Smart Dust," IEEE Journal of Solid-State Circuits, vol. 38, no. 7, July, 2003.
Index Terms
Keywords