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A 10 b 50 MS/s Opamp-Sharing Pipeline A/D With Current-Reuse OTAs.
- Source :
- IEEE Transactions on Very Large Scale Integration (VLSI) Systems; Sep2011, Vol. 19 Issue 9, p1610-1616, 7p
- Publication Year :
- 2011
-
Abstract
- A 10 b opamp-sharing pipeline analog-to-digital (A/D) using current-reuse operational transconductance amplifiers (OTA) with dual nMOS differential inputs is presented. The current-reuse OTA topology facilitates opamp-sharing between all of the consecutive pipeline stages, minimizing power consumption and die area. Analog transistors in the OTA are always biased in saturation ensuring no loss of settling time due to OTA power turn-on delays. The A/D is fabricated in a 0.18-\mum CMOS process and occupies an active die area of 0.7 mm^2. At 50 MS/s, maximum SNDR of 58 dB (ENOB=\ 9.3 b) is achieved with 9.2 mW analog power consumption on a 1.8 V supply. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10638210
- Volume :
- 19
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Very Large Scale Integration (VLSI) Systems
- Publication Type :
- Academic Journal
- Accession number :
- 63245570
- Full Text :
- https://doi.org/10.1109/TVLSI.2010.2052376