A 10-GS/s 8-bit 2× time interleaved hybrid ADC with λ/4 reference T-Line sharing technique

IF 7.3 2区 计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS
Zhangming Zhu, Jun Chang, Hongzhi Liang, Ruixue Ding, Shubin Liu
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引用次数: 0

Abstract

A 10-GS/s 8-bit 2× time interleaved hybrid ADC with λ/4 reference T-Line sharing technique has been demonstrated. Meanwhile, an on-chip 5th HILO with a center frequency of 20 GHz is embedded to generate the low-jitter propagation signal for T-Lines. The proposed sharing reference T-Line technique and serpentine routing enable a significant improvement on silicon-area efficiency. The ADC achieves a measured 3-dB effective bandwidth close to 6.7 GHz and an ENOB exceeding 5.5. The hybrid ADC chip fabricated in 0.9-V 28-nm CMOS achieves a 10-GS/s sampling frequency with a 31.22-mW power consumption. At Nyquist input, the SNDR is 38.11 dB, while at over-Nyquist 7.89 GHz input, the SNDR is 34.2 dB.

采用 λ/4 基准 T 线共享技术的 10-GS/s 8 位 2× 时间交错混合 ADC
采用 λ/4 参考 T 线路共享技术的 10-GS/s 8 位 2× 时间交错混合 ADC 已得到验证。同时,还嵌入了中心频率为 20 GHz 的片上第 5 HILO,以生成 T 线路的低抖动传播信号。所提出的共享参考 T 线路技术和蛇形布线可显著提高硅面积效率。ADC 的实测 3 dB 有效带宽接近 6.7 GHz,ENOB 超过 5.5。采用 0.9-V 28-nm CMOS 制造的混合 ADC 芯片实现了 10-GS/s 的采样频率,功耗为 31.22-mW。在奈奎斯特输入时,SNDR 为 38.11 dB,而在超奈奎斯特 7.89 GHz 输入时,SNDR 为 34.2 dB。
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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来源期刊
Science China Information Sciences
Science China Information Sciences COMPUTER SCIENCE, INFORMATION SYSTEMS-
CiteScore
12.60
自引率
5.70%
发文量
224
审稿时长
8.3 months
期刊介绍: Science China Information Sciences is a dedicated journal that showcases high-quality, original research across various domains of information sciences. It encompasses Computer Science & Technologies, Control Science & Engineering, Information & Communication Engineering, Microelectronics & Solid-State Electronics, and Quantum Information, providing a platform for the dissemination of significant contributions in these fields.
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