Title :
A novel track and hold circuit with offset and gain calibration
Author :
Can Zhu ; Rongbin Hu ; Lei Zhang ; Yonglu Wang ; Zhengping Zhang ; Rongke Ye ; Yuhan Gao
Author_Institution :
Sci. & Technol. on Analog Integrated Circuit Lab., Chongqing, China
Abstract :
A novel track and hold circuit in 0.18μm SiGe BiCMOS process is presented, whose offset and gain can be digitally calibrated, and which can be used in a time-interleaved ADC to improve its performances. The simulated results show that the proposed track and hold circuit can sample a signal at a rate of 1.25GHz, while consuming just 50mW. The offset calibration can get a range of 26.6mW with a step of 0.1mW, while the gain calibration gets a range of 33.28dB with a step of 0.13dB.
Keywords :
BiCMOS integrated circuits; Ge-Si alloys; analogue-digital conversion; sample and hold circuits; BiCMOS process; SiGe; frequency 1.25 GHz; gain calibration; offset calibration; power 0.1 mW; power 26.6 mW; power 50 mW; size 0.18 mum; time-interleaved ADC; track and hold circuit; BiCMOS integrated circuits; Calibration; Capacitors; Resistors; Silicon germanium; Switches; Transistors;
Conference_Titel :
General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI
Conference_Location :
Beijing
DOI :
10.1109/URSIGASS.2014.6929332
