低频低噪声集成运放XD1531的设计和分析
DESIGN AND ANALYSIS OF INTEGRATED OPERATIONAL AMPLIFIER WITH LOW NOISE AT LOW FREQUENCY
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摘要: 本文阐明了低频低噪声运放XD1531的设计原理。从电路和版图设计两方面论述了该电路整个设计过程。针对电路第一级的结构,采用低频低噪声方法进行设计。在版图方面主要考虑了降低低频噪声,尤其是降低表面1/f噪声的措施。通过对XD1531噪声性能的分析以及与国内外同类产品的比较,说明了该集成电路具有低噪声特性。同时,说明本文提出的设计方法对于降低集成电路的低频噪声是有效的。
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关键词:
- 集成电路; 低噪声; 运算放大器
Abstract: The design principle is described for low frequency integrated operational amplifier XD1531 with low noise. The design procedures of both circuit and mask pattern are considered. The circuit structure of the first stage is designed with the methods for obtaining low noise at low frequency. The measures for decreasing the low frequency noise, especially the surface 1/f noise, are used for mask pattern design. By comparing its characteristics with those of other products at home and abroad, it is shown that XD1531 has lower noise in low frequency region than others and the design method is effective for bringing low noise. -
姚立真,郝跃,XD1531低频低噪声运算放大器工作报告,西北电讯工程学院内部资料,1985年11月.[2]S. T. Hsu, Solid State Electronics, 13(1970)6, 843-855.[3]M. Nishida, IEEE Trans. on ED, ED-20(1973)3, 221-226.[4]郝跃等, 几种复化钝化膜对集成运算放大器的影响,第五届全国半导体物理与器件会议,厦门,1985年12月.[5]郝跃等, 集成低频低噪声运放XD1531实现过程之探讨,第五届全国半导体物理与器件会议,厦门,1985年12月.[6]C. D. 莫特钦巴切尔著,尤忠棋译,低噪声电子设计,国防工业出版社,1977年.[7]R. C. Jaeger, IEEE Trans. on ED, ED-17(1970)2, 128-133.[8]庄奕琪,半导体器件表面1/f噪声源及低频低噪声化技术的研究,西北电讯工程学院硕士研究生论文,1986年2月 -
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