A High-Performance Sample-and-Hold Circuit for 14-bit 125MS/s Pipelined ADC
This paper presents a design of a high-performance sample-and-hold (S/H) circuit. Switches constraints on signal settling in charge-transferring S/H circuit are discussed. Then the optimum combination of switches for this S/H circuit is proposed. Hspice simulated results based on Chartered 0.18μ 1P5M CMOS process under 1.8V supply voltage shows a 103dB SFDR, 86dB SNDR at Nyquist input @ Fs=125MS/s and preserves 91dB SFDR and 82dB SNDR with the input frequency up to 160MHz. The designed circuit has been used in the front end of 14-bit 125MS/s pipelined ADC adapted for single-ended applications.
Rui Zhang Hong-Hui Deng Yong-Sheng Yin Shang-Quan Liang Ming-Lun Gao
Institute of VLSI Design, Hefei University of Technology, Hefei, 230009, China
国际会议
上海
英文
424-426
2010-11-01(万方平台首次上网日期,不代表论文的发表时间)