1.6mW 0.5GHz开环VGA，具有快速启动和UWB无线电偏移校准功能

2011 Proceedings of the ESSCIRC (ESSCIRC) Pub Date : 2011-10-13 DOI:10.1109/ESSCIRC.2011.6044925

P. Harpe, Cui Zhou, K. Philips, H. D. Groot

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引用次数: 9

摘要

本文设计了一种低功耗、快速启动的宽带VGA，具有6阶低通滤波功能，适用于超宽带无线电。提出了一种直流耦合6级开环拓扑结构，包括直流偏置校准和快速启动偏置电路。包括去耦电容和数字接口在内的90nm CMOS原型仅占地0.075mm2。该电路从1V电源消耗1.6mW，实现−1.2dB到37.7dB增益，带宽可编程范围为80MHz ~ 460MHz，启动时间为12ns。

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A 1.6mW 0.5GHz open-loop VGA with fast startup and offset calibration for UWB radios

This paper presents a low-power fast-startup wideband VGA with a 6th-order low-pass filter function for UWB radios. A DC-coupled 6-stage open-loop topology is proposed, which includes DC offset calibration and fast-startup biasing circuits. The prototype in 90nm CMOS occupies only 0.075mm2, including decoupling capacitors and digital interfacing. The circuit consumes 1.6mW from a 1V supply, achieves −1.2dB up to 37.7dB gain with a programmable bandwidth from 80MHz to 460MHz, and achieves a startup-time of 12ns.

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2011 Proceedings of the ESSCIRC (ESSCIRC)

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