Open AccessDesign of Bootstrap Sample and Hold Circuit
Author(s) -
Ankush Chunn
Publication year - 2019
Publication title -
international journal of recent technology and engineering
Language(s) - English
Resource type - Journals
ISSN - 2277-3878
DOI - 10.35940/ijrte.d8462.118419
Subject(s) - effective number of bits , electronic engineering , sample and hold , total harmonic distortion , converters , cmos , dissipation , linearity , computer science , sampling (signal processing) , circuit design , sample (material) , noise (video) , power (physics) , electrical engineering , engineering , electronic circuit , voltage , artificial intelligence , filter (signal processing) , physics , quantum mechanics , image (mathematics) , thermodynamics
This paper describes the design and implementation of open loop sample and hold circuit using bootstrap technique, which can be used as front end sampling circuit for high speed analog-to-digital converters. Different design criteria viz. speed, power, resolution, linearity, noise and harmonic analysis have been dealt with. Both theoretical analysis and simulation results are carried out. The bootstrap circuit is designed and then compared in a 0.18μm and 0.35μm CMOS process. It is observed that signal to noise and distortion ratio (SNDR) and effective number of bits (ENOB) are higher for 0.35µm technology. But these advantages are at the cost of higher power dissipation. Hence there exists a trade-off between these performance metrics.