山西电子技术
山西電子技術
산서전자기술
SHANXI ELECTRONIC TECHNOLOGY
2011年
6期
11-13
,共3页
弱信号放大%TLC2652%仪表放大器
弱信號放大%TLC2652%儀錶放大器
약신호방대%TLC2652%의표방대기
weak-signal amplification%TLC2652%instrumentation amplifier
依据仪表放大器的工作原理，利用德州仪器公司的TLC2652设计了一低频弱信号放大电路。通过Multisim软件仿真分析，该电路具有极高的输入电阻，极低的输出电阻，共模抑制能力很强，能放大频率在0—300Hz内的微伏级信号，且该电路的工作稳定，失真度小。
依據儀錶放大器的工作原理，利用德州儀器公司的TLC2652設計瞭一低頻弱信號放大電路。通過Multisim軟件倣真分析，該電路具有極高的輸入電阻，極低的輸齣電阻，共模抑製能力很彊，能放大頻率在0—300Hz內的微伏級信號，且該電路的工作穩定，失真度小。
의거의표방대기적공작원리，이용덕주의기공사적TLC2652설계료일저빈약신호방대전로。통과Multisim연건방진분석，해전로구유겁고적수입전조，겁저적수출전조，공모억제능력흔강，능방대빈솔재0—300Hz내적미복급신호，차해전로적공작은정，실진도소。
According to the principle of instrumentation amplifier, the paper designs a low frequency weak signal amplifier circuit using the TLC2652 which made by Texas Instruments Company. Then, it simulates and analysis the circuit through the Multisim soft- ware, this circuit has extremely high input resistance and very low output resistance. The CMR is very strong and can magnify uV weak-signal in 0 - 300 Hz, the circuit work is stable, and the distortion degree of it is very small.
