专利名称：Impedance matching circuit and method
thereof
发明人：Hsin-Hsien Li,Chin-Chun Lin,Tsung-Hsien
Hsieh,Zi-Long Huang
申请号：US12683386申请日：20100106公开号：US08022758B2公开日：20110920
专利附图：
摘要：A circuit comprises an amplifier circuit and a trimming circuit. The amplifiercircuit includes an operational amplifier. The operational amplifier has a first input
configured to receive input signals, and the operational amplifier also has a second inputand an amplifier output. One of the first input or the second input is a negative input. Thetrimming circuit is coupled to the amplifier output. The trimming circuit includes atermination resistor coupled in parallel with at least one trimming resistor. Thetermination resistor is coupled to a first switch in series, and the trimming resistor iscoupled to a second switch in series. The amplifier output is connected back to thenegative input through the first switch.
申请人：Hsin-Hsien Li,Chin-Chun Lin,Tsung-Hsien Hsieh,Zi-Long Huang
地址：Hsin Chu TW,Hsin Chu TW,Hsin Chu TW,Hsin Chu TW
国籍：TW,TW,TW,TW
代理机构：Alston & Bird LLP
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