A Novel Fully Differential Second Generation Current Conveyor and its application as a very High CMRR Instrumentation Amplifier
Publish place: 2nd International Conference on Electrical Engineering
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICELE02_139
تاریخ نمایه سازی: 7 اسفند 1396
Abstract:
This paper aims to introduce a novel design of a Fully Differential second generation Current Conveyor (FDCCII) and its application to design a Low Power (LP), very high CMRR, wide band-width Current Mode Instrumentation Amplifier (CMIA). In the proposed circuit, CMRR as the most important property of IA has been greatly improved using a common mode feed forward (CMFF) and common mode feedback (CMFB) techniques verified by a perfect circuit analysis. The FDCCII has been designed using 0.18 um TSMC CMOS Technology with ±1.2 V supply voltages. The simulation of the proposed FDCCII and CMIA have been done in HSPICE LEVEL 49 that achieves for CMIA; a voltage CMRR of 216 dB, voltage CMRR bandwidth of 300 Hz , and differential voltage gain bandwidth of 18.1 MHz . Intrinsic resistance of X-terminals is only 45 Ω. The IA’s power dissipation is 383.4 μW
Keywords:
Current-mode , Instrumentation amplifier , CMIA , fully differential second generation current conveyor (FDCCII) , Very High CMRR
Authors
Soma Ahmadi
Department of Electrical and Electronic engineering, Iran University of Science and Technology, Tehran, Iran
Seyed Javad Azhari
Department of Electrical and Electronic engineering, Iran University of Science and Technology, Tehran, Iran
Hosein Ali Jafari
Department of Electrical and Electronic engineering, Iran University of Science and Technology, Tehran, Iran