一種高線性度cmos跨導放大器

1、本 科 學 生 畢 業(yè) 論 文2013 年 6 月 13 日論文題目： 一種高線性度 一種高線性度 CMOS 跨導放大器 跨導放大器學 院：年 級：專 業(yè)：姓 名：學 號：指導教師：AbstractDue to the rapid progress of VLSI technology, the CMOS circuit is developing toward the small size, low

2、 power dissipation, and low voltage, making small CMOS circuit become the hot spot of current research. Characteristics of CMOS operational trans-conductance amplifier circuit include: 1) simple structure, high output re

3、sistance, and invariable output current with the change of load. 2) high frequency, large band width, and adjustable gain. Thus, the trans-conductance amplifier has an important practical significance and application val

4、ue due to so good performance. In this thesis, an operational trans-conductance amplifier has been designed based on 0.25um CMOS process using current mirror as output stage. The low impedance nodes can effectively reduc

5、e the power dissipation of circuit. The designed circuit is simulated by Tspice software, and the layout is designed. The simulation results of the operational trans-conductance amplifier is following: circuit voltage is

6、 3.3V, the gain is 73.17dB, unit gain bandwidth is about 98MHz, the phase margin is 76 °, common-mode input range is 0~3V, the layout area is 26660.0um2, reached the expected design requirements.Key wordsOTA；High li