Title :
A 12-bit current steering DAC for cryogenic applications
Author :
Yao, Yuan ; Yu, Xuefeng ; Dai, Foster ; Jaeger, Richard C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Auburn Univ., AL
Abstract :
This paper present a 100MHz 12-bit digital to analog converter (DAC) capable to work under ultra-wide temperature (UWT) range from -180degC to +120degC and at ultra low temperature (ULT) of -230degC. To obtain high resolution and good speed over the UWT, partial thermometer-decoded and segmented scheme is employed. A bandgap voltage reference is designed for UWT applications. The cryogenic DAC chip is implemented in a 0.5mum SiGe technology with die area of 4.08times2.34 mm2 and total power consumption of 105mW with a 3.3V supply voltage
Keywords :
Ge-Si alloys; cryogenic electronics; digital-analogue conversion; reference circuits; -230 C; 0.5 micron; 100 MHz; 105 mW; 3.3 V; SiGe; SiGe technology; ULT; UWT; bandgap voltage reference; cryogenic DAC chip; cryogenic applications; current steering DAC; digital to analog converter; partial thermometer-decoding; ultra low temperature; ultra-wide temperature range; Circuit synthesis; Cryogenics; Decoding; Energy consumption; Germanium silicon alloys; Photonic band gap; Silicon germanium; Switches; Temperature distribution; Voltage; bandgap reference (BGR); digital to analog converter (DAC); ultra low temperature (ULT); ultra-wide temperature (UWT);
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1692533
