一种带有温漂修调的二阶曲率补偿基准源电路*

doi:10.16257/j.cnki.1681-1070.2019.1106

电子与封装 ›› 2019, Vol. 19 ›› Issue (11): 26 -30. doi: 10.16257/j.cnki.1681-1070.2019.1106

一种带有温漂修调的二阶曲率补偿基准源电路^*

李娟¹, 张海波¹, 李健¹, 屈柯柯¹, 常红^1,2

1.中科芯集成电路有限公司,江苏无锡 214072;
2.电子科学与工程学院,东南大学,南京 210096

出版日期:2019-11-20 发布日期:2019-12-25
作者简介:李娟(1986—),女,江苏江都人,本科,助理工程师,现从事电源管理及抗辐照方向的版图设计工作。
基金资助:
*江苏省博士后科研资助计划项目（2019K117）

Second-Order Curvature-Compensated Band-Gap Reference with TrimmingResistive Circuits

LI Juan¹, ZHANG Haibo¹, LI Jian¹, QU Keke¹, CHANG Hong^1,2

1.China Key System &Integrated Circuit Co., Ltd., Wuxi 214072, China;
2.School of Electronic Science &Engineering, Southeast University, Nanjing 210096, China

Online:2019-11-20 Published:2019-12-25

摘要/Abstract

摘要： 提出了一种带有温漂修调电路的二阶曲率补偿带隙基准电压源。采用V_BE线性化补偿原理,通过在特定支路上产生二阶正温度系数电流来补偿V_BE的二阶负温度系数项,从而大大提高了基准电压的温漂特性。另外,设计了电阻修调电路,简化了修调方式,降低了设计难度和设计成本,并且保证了基准电压的高精度。电路基于TSMC 0.18 µm BCD工艺设计,使用Cadence Spectre对电路进行仿真验证,仿真结果表明,在3.3 V电源电压下,基准输出电压约为1.22 V,在-55~125 ℃温度范围内,温度系数为3.02×10^_6/℃,低频时电源电压抑制比为_51.21 dB。

关键词: 带隙基准, 二阶曲率补偿, 温度系数, 电源抑制比

Abstract: A second-order curvature compensation bandgap reference voltage source with temperature drift trimming circuit was proposed. Based on the principle of VBE linearization compensation, the temperature drift characteristic was greatly improved by generating a branch current with the positive temperature coefficient to compensate the negative temperature coefficient of nonlinear terms of VBE. In addition, the trimming resistance circuit was designed to simplify the trimming mode, reduce the design difficulty and cost, and ensure the high precision of reference. The circuit was designed based on TSMC 0.18 µm BCD process. And the circuit was simulated and verified by using Cadence Spectre. The simulation results showed that the reference output voltage was about 1.22 V at the power supply of 3.3 V and the temperature coefficient of the voltage reference was 3.02 ×10^_6 /℃ in the range of -55-125 ℃. Furthermore, the power supply rejection ratio was _51.21 dB at low frequency.

Key words: band-gap reference, second-order curvature compensation, temperature coefficient, power supply rejection ratio

中图分类号:

TN402

李娟, 张海波, 李健, 屈柯柯, 常红. 一种带有温漂修调的二阶曲率补偿基准源电路^*[J]. 电子与封装, 2019, 19(11): 26 -30.

LI Juan, ZHANG Haibo, LI Jian, QU Keke, CHANG Hong. Second-Order Curvature-Compensated Band-Gap Reference with TrimmingResistive Circuits[J]. Electronics & Packaging, 2019, 19(11): 26 -30.

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中国半导体行业协会封装分会会刊

中国电子学会电子制造与封装技术分会会刊

一种带有温漂修调的二阶曲率补偿基准源电路^*

Second-Order Curvature-Compensated Band-Gap Reference with TrimmingResistive Circuits

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