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ThinkMind // SIGNAL 2019, The Fourth International Conference on Advances in Signal, Image and Video Processing // View article signal_2019_3_20_60049


Integrated Streak Camera With on Chip Averaging for Signal to Noise Ratio Improvement

Authors:
Wilfried Uhring
Jean-Baptiste Schell
Luc Hébrard

Keywords: High-speed imaging; CMOS; N-path filter; noise

Abstract:
A technique to reject the noise of the Trans-Impedance Amplifiers (TIAs) of an integrated streak camera in the case of a repeatable input signal is proposed. The modifications of the sensor architecture are marginal with only one additional power supply connected to the column buffer of the sampling cell. The noise rejection can be adjusted independently of the effective bandwidth of the system. The simulation results show that the TIA noise can be reduced from 3.5mV to 0.31mV, which is the limit of the used sampling cells due to kTC noise. The resulting signal-to-noise ratio is more than 10 times better with an acquisition time of only 20 µs thanks to the on-chip analog averaging feature.

Pages: 33 to 36

Copyright: Copyright (c) IARIA, 2019

Publication date: June 2, 2019

Published in: conference

ISSN: 2519-8432

ISBN: 978-1-61208-716-0

Location: Athens, Greece

Dates: from June 2, 2019 to June 6, 2019

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