International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

Volume2,March 2017,

Topic : A High Gain Low Power CMOS Operational Amplifier

Authors:K.Poshana || K.Lokesh Krishna ,K. Veda Samhitha

Abstract:This paper presents the design and simulation of a high gain low power complementary metal oxide semiconductor operational amplifier in 90nm technology. The aspect ratios of all the transistors were designed. High gain allows the operational amplifier (op-amp) circuit to function efficiently in a closed loop feedback system, whereas wide bandwidth makes the circuit to operate for high speed applications. The proposed op-amp design consists of two stages and operates at 1.2V power supply. It is aimed to meet a set of standard specifications. The entire op-amp design is evaluated using Cadence software tools, while the layout has been developed using Virtuoso. The op-amp circuit is able to achieve 38 dB gain, a 4V output swing, a 12.7 V/μsecond slew rate and a CMRR of 61 dB with a power supply voltage of 1.2 V..

Keywords: Slew rate, low power, sampling, high speed, closed loop system, bandwidth and aspect ratio

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DOI: 01.1617/vol4/iss3/pid24703


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IMPACT FACTOR: 3.8

ISSN(Online): 2456-1290

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Thomson Reuters ID : q-6288-2016.
ORCiD Research ID : 0000-0001-9540-6799

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ACCEPTANCE RATIO: 25%
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Journal Code : IJERMCE
Electronic ISSN : 2456-1290
Impact Factor : 3.8
Frequency : monthly
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