动态阀值调控的电流带隙启动电路设计

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中图分类号：TN710.2 文献标志码：A 文章编号：1000-582X（2025）12-123-10

Abstract： This paper proposes a novel startup circuit for a current-mode bandgap reference （CMBGR） to resolve startup issues in low-voltage CMOS processes while balancing design cost，PVT （process， voltage，temperature） robustness， CMBGR performance，and curvature compensation compatibility. The proposed circuit employs a dynamic threshold voltage mechanism，implemented in 0.11μm CMOS technology，which dynamically adjusts the startup threshold to ensure reliable operation across varying PVTconditions.Validation through 20 400 Monte Carlo simulations under diverse PVT settings confirmed successful startup without failure.The CMBGR operates over a supply voltage range from 2.3V to 4.3V： ，deliveringa configurable reference voltage output from 0.1V to （204号 2.0V. Atemperature coefficient of 8.7×10-6/∘C was achieved，which is superior to current 45×10-6/∘C and maintains the inherently low-temperature sensitivity of the CMBGR.Moreover，the design preserves full compatibilitywith curvature compensation strategies and requires no additional circuitry or performance tradeoffs.This approach provides a comprehensive and eficient solution for achieving stable startup in configurable CMBGR applications.

Keywords： current-mode bandgap reference; startup circuit; PVT; wide reference range; wide temperature range

带隙基准电路（bandgap reference circuit，BGR）作为集成电路中不可或缺的核心模块，其功能是提供温度稳定的参考电压，保障系统在复杂环境下的可靠运行1-5]。（剩余12097字）