A Track-and-Hold Amplifier for 1GSps 8bit ADC in 0.18 μm CMOS Process

被引：0

作者：

Zhang, Yi ^{[1
]}

Meng, Qiao ^{[1
]}

Huang, Qing ^{[1
]}

Tang, Kai ^{[1
]}

机构：

[1] Southeast Univ, Inst RF & OE ICs, Nanjing, Jiangsu, Peoples R China

来源：

2012 INTERNATIONAL CONFERENCE ON ADVANCED TECHNOLOGIES FOR COMMUNICATIONS (ATC 2012) | 2012年

关键词：

THA; bootstrapped switch; buffer; F&I ADC;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A track-and-hold amplifier (THA) for 1GSps 8bit pipelined folding and interpolation (F&I) ADC is realized in TSMC 0.18 mu m 1p6m CMOS process. The THA adopts bootstrapped switch instead of simple MOS switch. Dummy transistors and duplicated source follower are also taken to improve its performance. Post simulation results prove that the THA achieves a SNDR of 51.1dB at Nyquist sampling rate. Under a 1.8V supply, its power is 29mW. Simulation results of the F&I ADC demonstrate that the THA is suitable for the application.

引用

页码：5 / 8

页数：4

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