Linearity Improvement in Vernier Delay Chain Based Time Difference Amplifiers
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Time difference amplifiers are used in fluorescence experiments where the input time differences are in picoseconds. The key challenge is to provide the linearity of such amplifiers with sufficient gain over the required input range. This amplifier has a gain greater than 2ps/ps, with the input ranging from 10 pS to 1000 pS. The gain error is found to be less than 10% at a temperature of 25◦C , voltage range of 800mV to 1.2 V. The overall power consumption from simulation is 4 mW. This design uses differential signalling based architecture and is an open loop system to realize these specifications. Initially results of the design were verified using simulation techniques and then the physical implementation was done resulting in an integrated circuit that was fabricated and tested.
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Copyright © 2014 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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bangaloreramesh-linearityimprovementinvernierdelaychainbased.pdf | 2023-05-04 | Public | Download |