A Programmable Analog Delay Line for Micro-Beamforming in a Transesophageal Ultrasound Probe
Our research project is to design a readout IC for an ultrasonic transducer consisting of a matrix of more than 2000 elements. The IC and the matrix transducer will be put into the tip of a transesophageal probe for 3D echocardiography. A key building block of the readout IC, a programmable analog delay line, is presented in this paper. It is based on the timeinterleaved sample-and-hold (S/H) principle. Compared with conventional analog delay lines, this design is simple, accurate and flexible. A prototype has been fabricated in a standard 0.35um CMOS technology. Measurement results showing its functionality are presented.
Zili Yu Michiel A.P. Pertijs Gerard C. M. Meijer
Electronic Instrumentation Laboratory, Delft University of Technology, 2628 CD, Delft, The Netherlands
国际会议
上海
英文
299-301
2010-11-01(万方平台首次上网日期,不代表论文的发表时间)