NDLI: CMOS ultrasonic analogue front-end with reconfigurable pulser/switch for medical imaging applications

Content Provider	IET Digital Library
Author	Cha, H. K.
Abstract	A highly integrated bidirectional analogue front-end (AFE) circuit for interfacing capacitive micromachined ultrasound transducer in medical imaging systems is presented. The proposed AFE features a reconfigurable high-voltage (HV) pulser which generates over 15 V pulses at 2.6 MHz in the transmit mode and also operates as an HV isolation switch for the receive path circuits, thereby saving significant silicon area. The AFE also includes a low-power low-noise preamplifier which achieves 103 dBΩ transimpedance gain at 2.6 and 5 MHz bandwidth while operating at 1.65 V supply voltage. The AFE integrated circuit (IC) is implemented using 0.18 µm standard CMOS process and the total area of the single-channel core is 0.052 mm2 which is more than 65% of size reduction in comparison to previous work.
Starting Page	1564
Ending Page	1566
Page Count	3
ISSN	00135194
Volume Number	51
e-ISSN	1350911X
Issue Number	Issue 20, Oct (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/51/20
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2015.2440
Journal	Electronics Letters
Publisher Date	2015-09-17
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AFE Integrated Circuit Amplifiers Bandwidth 5 MHz Capacitive Micromachined Ultrasound Transducer Capacitive Transducers CMOS Analogue Integrated Circuit CMOS Integrated Circuit CMOS Ultrasonic Analogue Front-end Device For The Generation And Reproduction of Sound Frequency 2.6 MHz General Fabrication Technique Highly Integrated Bidirectional Analogue Front-end Circuit HV Isolation Switch Low Noise Amplifier Low Power Electronics Low-power Low-noise Preamplifier Measurement by Acoustic Technique Medical Image Processing Medical Imaging Application Micromachining Optical, Image And Video Signal Processing Patient Diagnostic Method And Instrumentation Preamplifiers Receive Path Circuit Reconfigurable High-voltage Pulser Reconfigurable Pulser/switch Size 0.18 Mum Sonic And Ultrasonic Application Sonic And Ultrasonic Radiation Sonic And Ultrasonic Transducers Standard CMOS Process Transduction Transimpedance Gain Transmit Mode Ultrasonic Imaging Ultrasonic Transducers Voltage 1.65 V
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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