A 192pW Hybrid Bandgap-Vth Reference with Process Dependence Compensated by a Dimension-Induced Side-Effect

📋 论文概要

该论文提出了一种192pW的超低功耗混合带隙-阈值电压参考电路，通过利用尺寸诱导的侧效应补偿工艺依赖性，解决了传统带隙参考在低功耗应用中静态功耗过高的问题。

💡 主要创新点

• 提出了一种混合带隙-阈值电压参考架构，结合CTAT和PTAT特性实现低功耗。
• 利用尺寸诱导的侧效应（如沟道长度调制）补偿工艺偏差，无需额外校准电路。
• 实现了192pW的极低功耗，适用于电池供电的物联网设备。

🏷 关键词

📄 原文摘要

various internal voltages. Since it consumes static power in standby modes, it plays an important role in energy management of battery-limited applications. The bandgap reference (BGR) has been a widely used approach since it provides a well-defined large value (~1.15V) with strong immunity to process, supply and temperature changes. Recently proposed BGR approaches achieved a great reduction of power consumption by taking only complementary-to-absolute-temperature (CTAT) quantity from a PN junction while they obtained proportional-to-absolutetemperature (PTAT) quantity from alternative CMOS circuits such as a CTAT divider [1] or leakage-based two diodes [2,3]. However, these BGR schemes are formed with multiple branches fed from a supply voltage above 1.4V and require

👥 作者与机构

Youngwoo Ji, Jungho Lee, Byungsub Kim, Hong-June Park, Jae-Yoon Sim

Pohang University of Science and Technology, Pohang, Korea A voltage reference circuit is an essential block of a system to generate