Title :
A 23μW digitally controlled pMUT interface circuit for Doppler ultrasound Imaging
Author :
Tillak, Judyta ; Yoo, Jerald
Author_Institution :
Dept. of EECS, Masdar Inst. of Sci. & Technol., Abu Dhabi, United Arab Emirates
Abstract :
This paper describes the design and implementation of a fully integrated Tx/Rx front-end interface for Doppler Imaging with Piezoelectric Micromachined Ultrasonic Transducer (pMUT). The 4-Level Time Gain Compensation (QL-TGC) readout channel with an integrated biasing bank reduces Rx power with satisfactory noise performance (NF=17) and minimal area. The 65nm CMOS chip occupies 200 × 300 μm and has a total power consumption of 23μW, which is a 4x and 25x improvement over the state-of-art pMUT interface circuits, respectively.
Keywords :
CMOS integrated circuits; low-power electronics; medical image processing; piezoelectric transducers; ultrasonic imaging; ultrasonic transducers; 4-level time gain compensation; CMOS chip; Doppler ultrasound imaging; QL-TGC; digitally controlled pMUT interface circuit; fully integrated Tx-Rx front-end interface; integrated biasing bank; piezoelectric micromachined ultrasonic transducer; power 23 muW; power consumption; readout channel; size 65 nm; Acoustics; Attenuation; Gain; Imaging; Noise; Transducers; Ultrasonic imaging; Doppler imaging; intracranial; pMUT; time-gain compensation; ultrasound;
Conference_Titel :
Circuits and Systems (ISCAS), 2015 IEEE International Symposium on
Conference_Location :
Lisbon
DOI :
10.1109/ISCAS.2015.7168959
