Title :
A 61.5dB SNDR pipelined ADC using simple highly-scalable ring amplifiers
Author :
Hershberg, Benjamin ; Weaver, Skyler ; Sobue, Kazuki ; Takeuchi, Seiji ; Hamashita, Koichi ; Moon, Un-Ku
Author_Institution :
Oregon State Univ., Corvallis, OR, USA
Abstract :
A ring amplifier based pipelined ADC is presented that uses simple cells constructed from small inverters and capacitors to perform amplification. The basic ring amplifier structure is characterized and demonstrated to be highly scalable, power efficient, and compression-immune (inherent rail-to-rail output swing). The prototype 10.5-bit ADC, fabricated in 0.18μm CMOS technology, achieves 61.5dB SNDR at a 30MHz sampling rate and consumes 2.6mW, resulting in a FoM of 90fJ/conversion-step.
Keywords :
CMOS integrated circuits; amplifiers; analogue-digital conversion; 10.5-bit ADC; CMOS technology; SNDR pipelined ADC; capacitor; compression-immune; frequency 30 MHz; inherent rail-to-rail output swing; noise figure 61.5 dB; power efficient; ring amplifier based pipelined ADC; ring amplifier structure; Accuracy; CMOS integrated circuits; CMOS technology; Digital audio players; Inverters; Structural rings; Transistors;
Conference_Titel :
VLSI Circuits (VLSIC), 2012 Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4673-0848-9
Electronic_ISBN :
978-1-4673-0845-8
DOI :
10.1109/VLSIC.2012.6243775
