Background Adaptive Cancellation of Digital Switching Noise in Pipelined ADCs without Noise Sensors

被引：0

作者：

Chang, N. C. -J. ^{[1
]}

Hurst, P. J. ^{[2
]}

Levy, B. C. ^{[2
]}

Lewis, S. H. ^{[2
]}

机构：

[1] Marvell Semicond Inc, Santa Clara, CA 95054 USA

[2] Univ Calif Davis, Dept ECE, Davis, CA 95616 USA

来源：

2012 IEEE CUSTOM INTEGRATED CIRCUITS CONFERENCE (CICC) | 2012年

关键词：

SUBSTRATE NOISE;

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：

Switching noise cancellation (SNC) at the output of a pipelined ADC without noise sensors is proposed to reduce both additive and multiplicative noise errors stemming from digital switching noise coupling to analog circuits. A prototype 12b 40MS/s ADC was fabricated in 0.18-mu m CMOS. The ADC plus digital test circuits occupy 4 mm(2). With periodic switching noise, SNC improves SNDR by 10 dB and SFDR by 26 dB. With random switching noise, SNC improves SNDR by 13 dB and SFDR by 9 dB. In both cases, SNC nearly cancels all the switching noise errors.

引用

页数：4

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