Design of 12bit 100MHz Sample and Hold Circuit for Pipeline ADC

摘要：

In this paper, design methods of Sample and Hold (S/H) circuit are discussed and gm/id method in OTA (Operational Transconductance Amplifiers) design is applied. Based upon the discussion, circuit design develops from the signal modeling, which would make circuit design concisely and easily. This work is elaborated in details by TSMC 0.18μm CMOS process. Folding telescope structure is applied for main OTA design, with two gain-boost OPAMPs, in order to achieve high gain and high GBW. In this paper, both main OTA and gain-boost OPAMP are design in gm/id method, and obtain circuit parameters from interpolated data simulated by H-Spice and MATLAB. Post-simulation and chip measurement results show that the S/H circuit performs well.

关键词： gm/id method Gain-boost folding telescope OTA Slew rate Flip-around S/H

作者: Zheng Hao Fan Xiangning Sun Yutao

作者单位: Institute of RF- & OE-ICs, School of Information Science and Engineering Southeast University Institute of RF- & OE-ICs, School of Information Science and EngineeringSoutheast University

会议类型: 国际会议

会议名称: 2011年无线通信与信号处理国际会议(WCSP 2011)

会议地点: 南京

会议语种:英文

页码: 1-5

在线出版日期: 2011-11-09（万方平台首次上网日期，不代表论文的发表时间）