共源级放大器的电路设计及版图实现

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巢湖学院2014届本科毕业论文（设计）

共源级放大器的电路设计及版图实现

摘要

集成电路设计技术是现在信息时代的关键技术之一，当今的超大规模集成电路（VLSL）设计也已经离不开计算机辅助（CAD）。Tanner就是CAD软件的一种，它是由Tanner Research公司开发的基于windows平台的用于集成电路设计的工具软件，该软件功能强大，从电路设计、分析模拟到电路布局都可实现。本设计就是基于tanner软件实现共源级放大器的电路图设计及版图绘制。共源极放大器是CMOS电路中的基本增益级。它是典型的反向放大器，负载可以是有源负载或者电流源。共源极放大器需要得到比有源负载放大器更大的增益。设计电流源负载共源极放大器对学习了解IC有着本质的帮助和提高，这是理论与实践的相结合。本论文主要设计三种情况的放大器电路，他们是电阻负载共源级放大器、二极管连接的负载的共源级放大器和电流源负载共源级放大器电路，通过这三种放大器的设计能让我们更好的使用共源级放大器。

关键词：共源级放大器；版图；Tanner Tools

共源级放大器的电路设计及版图实现

Circuit Design and Layout Implementation of the

Dommon-source Amplifier

Abstract

IC design technology is now one of the key technologies of the information age, today's VLSI (VLSL) has been inseparable from computer-aided design (CAD). Tanner is a CAD software, which is based IC design software tools for windows platform, powerful functionality of the software developed by the Tanner Research, analog circuit design, analysis of the circuit layout can be realized. This design is the circuit diagram tanner common source software based amplifier design and layout drawing. Is a common-source amplifier circuit of the basic CMOS gain stage. It is a typical inverting amplifier, or the load may be an active load current source. Common-source amplifier needs to be greater than the active load amplifier gain. Design current source load common-source amplifier IC has to learn to understand the nature of the help and improve, which is a combination of theory and practice. This thesis amplifier circuit design three cases, they are a common source amplifier resistive load of source-level amplifier and a current source diode connected load of the load common source amplifier circuit, amplifier design by these three make us more Use good common source amplifier.

Key word: CAD；TANNER；Common-source Amplifier

中文摘要 ........................................................................................................................ I 英文摘要 ....................................................................................................................... II 引言 ............................................................................................................................... 1 1 TANNER TOOLS软件简介 ................................................................................... 2 1.1 TANNER TOOLS软件的组成............................................................................... 2 1.2 TANNER TOOLS设计综合流程........................................................................... 3 2 共源级放大器电路图和版图设计及其仿真 ......................................................... 4 2.1 电阻负载共源级放大器电路原理分析 ............................................................ 4 2.1.1 电阻负载共源级放大器电路图设计 ........................................................ 5 2.1.2 电阻负载共源级放大器电路图SPICE文件设置.................................... 5 2.1.3 电阻负载共源级放大器电路图仿真图 .................................................... 6 2.1.4 电阻负载共源级放大器版图设计 ............................................................ 7 2.1.5 DRC规则检查 ........................................................................................... 7 2.1.6 电阻负载共源级放大器版图spice文件设置 .......................................... 8 2.1.7 电阻负载共源级放大器版图仿真图 ........................................................ 8 2.2 二极管连接负载的共源级放大器电路原理分析 ............................................ 9 2.2.1 二极管负载共源级放大器电路图设计 .................................................... 9 2.2.2 电路图验证 .............................................................................................. 10 2.2.3 二极管负载共源级放大器电路图SPICE文件设置.............................. 10 2.2.4 二极管连接负载的共源级放大器电路图仿真图 ...................................11 2.2.5 二极管负载共源级放大器版图设计 .......................................................11 2.2.6 DRC规则检查 ......................................................................................... 12 2.2.7 二极管负载共源级放大器版图spice文件设置 .................................... 13 2.2.8 二极管负载共源级放大器版图仿真图 .................................................. 13 2.3 电流源负载共源级放大器电路原理分析 ...................................................... 13 2.3.1 电流源负载共源级放大器电路图设计 .................................................. 14 2.3.2 电路图验证 .............................................................................................. 15 2.3.3 电流源负载共源级放大器电路图SPICE文件设置.............................. 15 2.3.4 电流源负载共源级放大器电路图仿真图 .............................................. 15 2.3.5 电流源负载共源级放大器版图设计 ...................................................... 16 2.3.6 DRC规则检查 ......................................................................................... 17 2.3.7 电流源负载共源级放大器版图spice文件设置 .................................... 17 2.3.8 电流源负载的共源级放大器版图仿真图 .............................................. 18 3 LVS对比 ............................................................................................................... 18 3.1 电阻负载共源级放大器电路LVS对比......................................................... 18 3.2 二极管连接负载的共源级放大器电路LVS对比......................................... 19 3.3 电流源负载共源级放大器电路LVS对比..................................................... 20 4 结束语 ................................................................................................................... 20 参考文献 ..................................................................................................................... 22

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