A 14-bit 1-GS/s SiGe Bootstrap Sampler for High Resolution ADC with 250-MHz Input.

Jiazhang Song,Li-Yang Chen,Mau-Chung Frank Chang,Sudhakar Pamarti,Chih-Kong Ken Yang

ISCAS（2022）

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摘要

An 86.6-dB SFDR, 1-GS/s differential bootstrap sampler in a 0.18-um SiGe BiCMOS technology is presented. The performance is achieved using an amplitude-modulated bootstrap circuit. The results show 14-bit linearity over nearly 500-MHz bandwidth, while consuming less power compared to a conventional MOSFET switched-capacitor bootstrap circuit due to less parasitic capacitance and the use of high ft HBT.

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关键词

high resolution adc,sige bootstrap sampler

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