JSSC 2006第9期RF & Wireless0.15μm

A 110 nA V oltage Regulator System With Dynamic Bandwidth Boosting for RFID Syst

一种用于RFID标签的动态带宽提升电压调节器系统，仅消耗110nA电流。

0.15μm CMOS, 1.4V/1.25V, 110nA

RFID电压调节器动态带宽超低功耗CMOS

▸动态带宽提升技术：通过感知限幅器中多余的电流并动态调整偏置电流，实现带宽的动态提升，有效应对RF传输的突发性，确保快速恢复和稳定输出（系统创新）。

▸超低功耗设计（110nA）：采用优化的电路设计和电源管理策略，使电压调节器在仅110nA的极低电流下正常工作，显著降低功耗（电路创新）。

▸电压限制器和钳位电路的应用：在调节路径中采用多级电压限制器和钳位电路，将整流器输出电压限制在1.4V的窄范围内，确保后续精细调节的稳定性（方法创新）。

▸宽输入电压范围适应性：通过创新的调节架构，能够适应整流器输出电压的极大波动（高达数十伏），并最终稳定输出至1.25V的带隙参考值（系统创新）。

Abstract

This paper describes a voltage regulator system for ultra-low-power RFID tags (also called passive tags) in a 0.15 m analog CMOS technology. These tags derive their power supply from the incoming RF energy through rectiﬁcation instead of from a battery. The regulator is functional with just 110 nA current. Owing to the huge variation of the rectiﬁed voltage (by as much as tens of volts), voltage limiters and clamps are employed at various points along the regulation path. A limiter at the recti