Open Access Journal

ISSN : 2394 - 6849 (Online)

International Journal of Engineering Research in Electronics and Communication Engineering(IJERECE)

Monthly Journal for Electronics and Communication Engineering

Open Access Journal

International Journal of Engineering Research in Electronics and Communication Engineering(IJERECE)

Monthly Journal for Electronics and Communication Engineering

ISSN : 2394-6849 (Online)

A High Gain Low Power CMOS Operational Amplifier

Author : K.Poshana 1 K.Lokesh Krishna 2 K. Veda Samhitha 3

Date of Publication :7th March 2017

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.

Reference :

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