สำนักราชบัณฑิตยสภา

วัลลภ สุระก� ำพลธร วารสารราชบัณฑิตยสถาน ปีที่ ๓๗ ฉบับที่ ๑ ม.ค.-มี.ค. ๒๕๕๕ 193 Abstract On the Development of Differential amplifier based Current Conveyor Circuits Wanlop Surakampontorn Department of Electronics, Faculty of Engineering, King Mongkutf’s Institute of Technology Ladkrabang (KMITL) The developments of Second Generation Current Conveyors (CCII) realized by the use of a differential amplifier as circuit building block are reviewed. The modi - fications to offer dual and multiple outputs CCIIs and improved CCIIs from Surakam - pontorn et al. circuit[13] are listed and discussed. Based on feedback mechanisms, CCIIs that provide low input impedance at port X, wide bandwidth and low offset are outlined and discussed. In order to understand the performance improvement, the characteristics of the CCIIs that have been studied and compared through the use of simulation results by Hassanenin et al.[7] are given. The concept of chemical current conveyor (CCCII) is also denoted. Key words: CMOS Analog Integrated Circuit Design, Second Generation Current Conveyor Circuits