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Input Offset Cancellation Trimming Technique for Operational Amplifiers
Faculty
Engineering
Year:
2013
Type of Publication:
ZU Hosted
Pages:
1-5
Authors:
Mohammed Farahat Abdelhamied Abdelrahman
Staff Zu Site
Abstract In Staff Site
Journal:
Saudi International Electronics, Communications and Photonics Conference IEEE
Volume:
Keywords :
Input Offset Cancellation Trimming Technique , Operational
Abstract:
This paper presents a novel input offset cancellation technique dedicated for analog building blocks. This technique provides an injected current to the analog input signal that is a function of the offset. The proposed technique provides a suitable method to the post-package offset cancellation. Unlike, other convention techniques, the proposed technique avoids the potentially stability issue, consumes a low silicon area, low power consumption, and temperature independent. The input offset cancellation circuit is attached to the input stage of the differential input single output (DISO) amplifier to revoke undesired DC, offset voltage (Vos, out), based on trimming current (ITrim). DISO amplifier with input offset cancellation circuit is simulated and comprehend a DC gain of 78 dB, a unity-gain frequency (GBW) of 58 MHz associated with a phase margin of 670. Moreover, the total consumption power is 0.72 mW. The statistical analysis with practical different coefficients provided from foundry demonstrates offset voltage less than 200 μν. The circuit is simulated in IBM 0.13μm CMOS technology with a single power supply 1.5-V.
Author Related Publications
Mohammed Farahat Abdelhamied Abdelrahman, "Only digital technology analog-to-digital converter circuit", IEEE 46th Midwest Symposium, 2003
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Mohammed Farahat Abdelhamied Abdelrahman, "Input–output Rail-to-RailCMOSCCIIforlowvoltage–low powerapplications", MicroelectronicsJournal, 2015
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Mohammed Farahat Abdelhamied Abdelrahman, "An Automated Design Algorithm-Simulated Annealing-Based for Design Analog Circuits", SERSC, 2020
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Department Related Publications
Abdelhamied Abdelmoniem Mohamed Shalan, "Design and Simulation of A single Feed Dual-Band U-Slot Patch Antenna", لايوجد, 1900
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Abdelhamied Abdelmoniem Mohamed Shalan, "Wideband Overlappled Patches Microstrip Antennas", لايوجد, 1900
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Abdelhamied Abdelmoniem Mohamed Shalan, " S. H. Zainud-Deen, M. N. I. Fahmy, and A. A. M. Shaalan, "On the Elimination of Backscattering from A Straight Wire Systems, Symposium on Antenna Technology and Applied Electromagnetics, ATEM, Canada, 1992", لايوجد, 1900
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Mohamed Sharaf Ismail Sayed , "Low Complexity Contrast Enhancement Algorithm for Nighttime Visual Surveillance", International Conference on Intelligent Systems Design and Applications ISDA, 2010
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