DocumentCode :
3706275
Title :
On-chip reduced wire transceiver for high frequency CMUT imaging system
Author :
Jaemyung Lim;Evren F. Arkan;Gwangrok Jung;F. Levent Degertekin;Maysam Ghovanloo
Author_Institution :
School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA
fYear :
2015
Firstpage :
1
Lastpage :
4
Abstract :
A system-on-a-chip (SoC) for interfacing with a high frequency capacitive micromachined ultrasound transducer (CMUT) imaging array is presented at the post-layout simulation level. The SoC receives high and low voltage supply and clock from external sources and transfers the RF echo signal directly through a single wire. It occupies a 1.26 mm2 chip area in a 0.18-μm high voltage CMOS process and consumes 11.2 mW and 4.5 mW from the 1.8 V and 46 V supplies on the receiver (Rx) and transmitter (Tx) sides, respectively. The Tx generates a unipolar pulse with 12.5 ns width and 44 V swing in each firing. The Rx has a 95 kΩ resistive feedback transimpedance amplifier (TIA) that amplifies the echo signal with 296 μV noise integrated over 20-50 MHz band. High voltage regulators provide 44 V, 40 V, and 4.5 V supplies for the Tx driving circuits with 98.2%, 6.98%, and 1% efficiencies, respectively.
Keywords :
"Arrays","Clocks","Regulators","Wires","System-on-chip","Imaging","Transmitters"
Publisher :
ieee
Conference_Titel :
Biomedical Circuits and Systems Conference (BioCAS), 2015 IEEE
Type :
conf
DOI :
10.1109/BioCAS.2015.7348446
Filename :
7348446
Link To Document :
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