A 12b 16GS/s RF-Sampling Capacitive DAC for Multi-Band Soft-Radio Base-Station Applications with On-Chip Transmission-Line Matching Network in 16nm FinFET

📋 论文概要

提出一种12位16GS/s的RF采样电容式DAC，用于多波段软件无线电基站，旨在替代传统需大量校准的电流舵架构，实现高线性、紧凑和高效能。通过片上传输线设计解决了高速接口问题。

💡 主要创新点

• 采用电容式DAC架构替代传统电流舵，减少了对校准的依赖，降低了复杂度。
• 实现了16GS/s的超高采样率与12位分辨率，适用于多波段软无线电基站的大带宽需求。
• 集成片上传输线，改善了高速信号完整性。

🏷 关键词

📄 原文摘要

*Equally-Credited Authors (ECAs) Future multi-band software-defined-radio base-stations for digital beamforming and massive MIMO applications depend heavily on the availability of highly linear and compact data converters with good power efficiency, while at the same time offering multi-GHz signal-bandwidth at sampling rates well in excess of 10GS/s. Wideband RFsampling D/A-converters have traditionally been implemented in current-steering architectures, mostly with extensive calibration infrastructure [1-3]. The transistor stack required to achieve the necessary static and dynamic output impedance for the codesteered current sources leads to limited supply voltage scalability, while the capacitive self-loading by the current-source array makes true wideband matching at the RF-output

👥 作者与机构

Daniel Gruber*1, Martin Clara*2, Ramon Sanchez3, Yu-shan Wang4,

Christoph Duller1, Gerald Rauter1, Patrick Torta1, Kamran Azadet2 Intel, Villach, Austria Intel, Santa Clara, CA 3 Intel, Madrid, Spain 4 Intel, Hillsboro, OR 1 2