Title :
A low temperature pipelined analog-to-digital converter
Author :
Mäkiniemi, Tuula K. ; Kosonen, Paavo J.
Author_Institution :
Nokia Networks, Espoo, Finland
fDate :
6/23/1905 12:00:00 AM
Abstract :
A pipelined analog-to-digital converter optimized for low-temperature operation is presented. The advantages of operating CMOS devices at low temperatures are numerous and include increased carrier mobility, higher transconductance, decreased junction leakage, and steeper subthreshold slope. At the circuit and system level, the advantages include lower interconnect line resistance and reductions in thermally activated processes such as noise and electromigration. The goal of this study was to explore how much performance enhancement can be achieved for the converter optimized for operation at -70°C. The converter is simulated to have 12 bit resolution and 100 MHz sampling speed. The performance improvement compared to room temperature operation is considerable
Keywords :
CMOS integrated circuits; analogue-digital conversion; carrier mobility; circuit simulation; cryogenic electronics; electromigration; integrated circuit design; integrated circuit interconnections; integrated circuit metallisation; integrated circuit modelling; integrated circuit noise; leakage currents; pipeline processing; signal sampling; -70 C; 100 MHz; CMOS device low-temperature operation; CMOS devices; carrier mobility; converter resolution; electromigration; interconnect line resistance; junction leakage; low temperature pipelined analog-to-digital converter; low-temperature operation; noise; optimized converter; performance enhancement; pipelined analog-to-digital converter; room temperature operation; sampling speed; subthreshold slope; thermally activated processes; transconductance; Analog-digital conversion; Circuit noise; Circuits and systems; Electromigration; Integrated circuit interconnections; Noise level; Noise reduction; Temperature; Thermal resistance; Transconductance;
Conference_Titel :
Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on
Print_ISBN :
0-7803-7057-0
DOI :
10.1109/ICECS.2001.957607
