NDLI: A single-chip time-interleaved 32-channel analog beamformer for ultrasound medical imaging

Content Provider	IEEE Xplore Digital Library
Author	Ji-Yong Um Jae-Hwan Kim Eun-Woo Song Yoon-Jee Kim Jae-Yoon Sim Park, H.-J.
Copyright Year	2012
Description	Author affiliation: Dept. of Electr. Eng., Pohang Univ. of Sci. & Technol. (POSTECH), Pohang, South Korea (Ji-Yong Um; Eun-Woo Song; Yoon-Jee Kim; Jae-Yoon Sim; Park, H.-J.) \|\| Div. of IT Convergence Eng., Pohang Univ. of Sci. & Technol. (POSTECH), Pohang, South Korea (Jae-Hwan Kim)
Abstract	This paper proposes a single-chip time-interleaved 32-channel analog beamformer for ultrasound medical imaging. The proposed analog beamformer circuit consists of multiple sub analog beamformers which are time-interleaved for beamforming of multiple focal points on a scan line. Each sub analog beamformer executes beamforming for an assigned focal point on a scan line sequentially by sampling and summing the ultrasound echo signals of 32 channels. The proposed 32-channel analog beamformer circuit was fabricated in a single chip with an active area of 15.75 $mm^{2}$ in a 0.13 μm standard CMOS process. The total power consumption of the chip is 150 mW with a 1.2V supply. The delay resolution of the implemented analog beamformer circuit is 1/200 of the ultrasound carrier period. The analog beamformer operation was successfully verified through measurements by applying the emulated ultrasound echo signals taken from a commercial ultrasound imaging device through commercial DAC chips to the fabricated chip.
Sponsorship	IEEE Solid-State Circuits Soc.
Starting Page	193
Ending Page	196
File Size	1421537
Page Count	4
File Format	PDF
DOI	10.1109/IPEC.2012.6522658
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-12
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	single-chip ultrasound analog beamformer time interleaving medical imaging
Content Type	Text
Resource Type	Article

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