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Self-biased charge sampling amplifier in 90nm CMOS for medical ultrasound imaging

Published: 11 March 2007 Publication History

Abstract

In this paper, we present the analysis and design of a self-biased single-ended charge sampling amplifier (CSA) in 90nm CMOS for catheter based intravenous ultrasound imaging applications. The proposed CSA is based on a 1V single-ended CMOS inverter-based cascode amplifier. The amplifier achieves a DC gain of 43.7 dB and a unity gain frequency of 1.37 GHz at a power consumption of 385 μW at 37°C - nominal temperature of human body with typical-typical (TT) models defined in the 90nm CMOS technology used for this design. Performance of the self-biased CSA is studied by connecting a single Capacitive Micro machined Ultrasound Transducer (CMUT) to it.

References

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Wygant, I. O., et al. An Endoscopic Imaging System Based on a Two-Dimensional CMUT array: Real Time Imaging Results. IEEE Ultasonics Symposium, 2005, pp. 792--795.
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Annema, A. J., et al. Analog Circuits in Ultra-Deep-Submicron CMOS. IEEE Journal of Solid-State Circuits, 2005, Vol. 40, no. 1, pp. 132--143.
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  • (2018)Feedback Biasing Based Adjustable Gain Ultrasound Preamplifier for CMUTs in 45nm CMOS2018 31st International Conference on VLSI Design and 2018 17th International Conference on Embedded Systems (VLSID)10.1109/VLSID.2018.63(204-207)Online publication date: Jan-2018

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  1. Self-biased charge sampling amplifier in 90nm CMOS for medical ultrasound imaging

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    cover image ACM Conferences
    GLSVLSI '07: Proceedings of the 17th ACM Great Lakes symposium on VLSI
    March 2007
    626 pages
    ISBN:9781595936059
    DOI:10.1145/1228784
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Publication History

    Published: 11 March 2007

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    Author Tags

    1. CMUT-CMOS
    2. CSA
    3. analog front-end for CMUTs
    4. charge sampling
    5. sampling

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    March 11 - 13, 2007
    Stresa-Lago Maggiore, Italy

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    • (2018)Feedback Biasing Based Adjustable Gain Ultrasound Preamplifier for CMUTs in 45nm CMOS2018 31st International Conference on VLSI Design and 2018 17th International Conference on Embedded Systems (VLSID)10.1109/VLSID.2018.63(204-207)Online publication date: Jan-2018

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