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基于斩波技术的CMOS运算放大器失调电压的消除设计 被引量:16

Design of CMOS operating amplifier for eliminating DC offset based on chopper technology
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摘要 实现传感器系统的高分辨率,要求其内部运算放大器具有低失调电压和低噪声的性能,为此介绍了一种可减少运算放大器的失调电压和低频噪声的斩波技术,并基于该技术进行温度传感器中CMOS运算放大电路失调电压的消除设计,最后通过SPICE仿真分析来权衡电路各参数的设定。 To realize the high resolution of sensor system, the inner operating amplifier (op-amp)with low noise and voltage offset is required. A chopper technology which can be employed toreduce the effects of op-amp imperfections is introduced in this paper. A CMOS op-amp circuitbased on the chopper technology is designed for eliminating the input DC offset in the temperaturesensor. At last, we use the result of SPICE simulation to design the values of the op-amp circuitparameters.
出处 《半导体技术》 CAS CSCD 北大核心 2003年第8期60-64,共5页 Semiconductor Technology
基金 国家自然科学基金项目(No:60076015) 福建省自然科学基金项目 福建省高新技术项目
关键词 斩波技术 CMOS 运算放大器 失调电压 消除设计 集成电路 chopper technology CMOS operating amplifier DC offset
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  • 1MALCOVATI P, LEME C A, LEARY P O. Smart sensor interface with A/D conversion and programmable calibration[J]. IEEE J Solid-State Circuits, 1994, 29:963-966.
  • 2MEIJER G C M, WANG G, FRUETT F. Temperature sensors and voltage references implemented in CMOS technology[J]. IEEE Sensors Journal, 2001: 1( 3):225 -234.
  • 3PETEGHEM P M V, VERBAUWHEDE I, SANSEN W.Micropower high-performance SC building block for integrated low level signal processing[J]. IEEE J. Solid-State Circuits, 1985, SC-20: 837-844.
  • 4WENG M C, WU J C. Low cost CMOS on-chip and remote temperature sensor[J]. IEICE Trans Electron, 2001, E84-C: 451-459.
  • 5ENZ C C, TEMES G C. Circuit techniques for reducing the effects of op-amp imperfections: autozeroing,correlated double sampling, and chopper stabilization[J]. Proceedings of the IEEE, 1996,84 (11):1584-1614.

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