Title :
A programmable analog delay line for Micro-beamforming in a transesophageal ultrasound probe
Author :
Yu, Zili ; Pertijs, Michiel A P ; Meijer, Gerard C M
Author_Institution :
Electron. Instrum. Lab., Delft Univ. of Technol., Delft, Netherlands
Abstract :
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 time-interleaved 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 0.35μm CMOS technology. Measurement results showing its functionality are presented.
Keywords :
CMOS analogue integrated circuits; analogue processing circuits; programmable circuits; readout electronics; sample and hold circuits; ultrasonic transducers; 3D echocardiography; CMOS technology; matrix transducer; microbeamforming; programmable analog delay line; readout IC; time-interleaved sample-and-hold principle; transesophageal probe; transesophageal ultrasound probe; ultrasonic transducer; Capacitors; Clocks; Delay; Delay lines; Prototypes; Transducers; Ultrasonic imaging;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2010 10th IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-5797-7
DOI :
10.1109/ICSICT.2010.5667749
