利用片上驱动保护环抑制混合信号电路中的有源衬底噪声

Proceedings of the IEEE 2000 Custom Integrated Circuits Conference (Cat. No.00CH37044) Pub Date : 2000-05-21 DOI:10.1109/CICC.2000.852684

W. Winkler, F. Herzel

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引用次数: 19

摘要

本文提出了一种采用一对同心保护环的有源衬底噪声抑制电路。外保护环检测衬底噪声，该噪声由SiGe电路反转和放大。片上放大器驱动内保护环，从而实现有效的噪声消除。环形振荡器用于检测残余衬底噪声。测量到的噪声抑制带宽高达400mhz。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Active substrate noise suppression in mixed-signal circuits using on-chip driven guard rings

This paper presents an active substrate noise suppression circuit using a pair of concentric guard rings. The outer guard ring senses the substrate noise, which is inverted and amplified by a SiGe circuit. This on-chip amplifier drives the inner guard ring such that efficient noise cancellation is achieved. A ring oscillator is used to sense the residual substrate noise. The measured noise suppression bandwidth is as high as 400 MHz.

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Proceedings of the IEEE 2000 Custom Integrated Circuits Conference (Cat. No.00CH37044)

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