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Cited by 12 publications
(3 citation statements)
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“…The impedance models inform the design of noise-optimal interfacing electronics for each CMUT using well-known circuit design principles [26]. While most immersion CMUT devices use current-sensing front-ends [27], the low acoustic impedance of air (which often translates to low CMUT resistance) makes it more power and noise efficient to use a voltage amplifying analog front-end (AFE) for some air-coupled CMUTs [20]. We thus use a programmable twostage voltage amplifying (100-1000 V /V ) AFE and on-board filtering to interface with the vacuum CMUT and the vented CMUT with trenches.…”
Section: B Ultrasound Detection Unitmentioning
confidence: 99%
“…The impedance models inform the design of noise-optimal interfacing electronics for each CMUT using well-known circuit design principles [26]. While most immersion CMUT devices use current-sensing front-ends [27], the low acoustic impedance of air (which often translates to low CMUT resistance) makes it more power and noise efficient to use a voltage amplifying analog front-end (AFE) for some air-coupled CMUTs [20]. We thus use a programmable twostage voltage amplifying (100-1000 V /V ) AFE and on-board filtering to interface with the vacuum CMUT and the vented CMUT with trenches.…”
Section: B Ultrasound Detection Unitmentioning
confidence: 99%
“…Key areas of innovation for ultrasound system design include improvements to power consumption and battery life, form factor and portability, and cost. 1,2 Battery-operated ultrasound scanner design consequently focuses on improving sensitivity without sacrificing efficiency and cost. Advanced imaging techniques requiring high computational load such as Plane Wave imaging or Synthetic Transmit Aperture imaging, or even increasing number of hardware receive channels to increase sensitivity, can have a direct impact on efficiency and cost, therefore other methods of improving sensitivity should be examined.…”
Section: Introductionmentioning
confidence: 99%
“…Key areas of innovation for ultrasound system design include improvements to power consumption and battery life, form factor and portability, and cost. 1 , 2 …”
Section: Introductionmentioning
confidence: 99%