A variable-gain low-noise transimpedance amplifier for miniature ultrasound probes

E Kang, M Tan, JS An, ZY Chang… - IEEE Journal of Solid …, 2020 - ieeexplore.ieee.org
This article presents a low-noise transimpedance amplifier (TIA) designed for miniature
ultrasound probes. It provides continuously variable gain to compensate for the time …

Monolithic single PMUT-on-CMOS ultrasound system with+ 17 dB SNR for imaging applications

I Zamora, E Ledesma, A Uranga, N Barniol - IEEE Access, 2020 - ieeexplore.ieee.org
This article presents a fully integrated ultrasound system based on a single piezoelectric
micromachined ultrasonic transducer (PMUT) monolithically fabricated with a 0.13 μm …

A 64-channel transmit beamformer with±30-V bipolar high-voltage pulsers for catheter-based ultrasound probes

M Tan, E Kang, JS An, ZY Chang… - IEEE Journal of Solid …, 2020 - ieeexplore.ieee.org
This article presents a fully integrated 64-channel programmable ultrasound transmit
beamformer for catheter-based ultrasound probes, designed to interface with a capacitive …

An RX AFE with programmable BP filter and digitization for ultrasound harmonic imaging

M Zhou, S Ouzounov, E Cantatore… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
This paper presents a front-end integrated circuit for ultrasound (US) harmonic imaging,
interfacing to a one-dimensional capacitive micromachined ultrasonic transducer (CMUT). It …

A 60 dB gain range programmable gain current amplifier for ultrasound sensing

S Wang, Z Lu, Z Tang, X Yu - Microelectronics Journal, 2024 - Elsevier
This article presents a programmable gain current amplifier (CA) for ultrasound sensing
applications. The design proposed consists of a current divider and a close-loop current …

An adaptive element-level impedance-matched ASIC with improved acoustic reflectivity for medical ultrasound imaging

A Rezvanitabar, MS Kilinc, C Tekes… - IEEE transactions on …, 2022 - ieeexplore.ieee.org
This paper presents an active impedance matching scheme that tries to optimize electrical
power transfer and acoustic reflectivity in ultrasound transducers. Leveraging negative …

A 2pA/√ Hz Current-Conveyor-Assisted Ultrasound Receiver with 25pF CMUT Parasitic Capacitance

G Yun, K Jeong, H Choi, S Nam, C Oh… - 2023 IEEE Asian …, 2023 - ieeexplore.ieee.org
Ultrasound (US) imaging has emerged as a promising solution for medical diagnosis with its
low cost and biocompatibility. Recent demands for multi-dimensional imaging in medical …

Analysis of negative capacitance-based broadband impedance matching for CMUTs

A Rezvanitabar, EF Arkan… - IEEE transactions on …, 2021 - ieeexplore.ieee.org
Tight integration of capacitive micromachined ultrasonic transducer (CMUT) arrays with
integrated circuits can make active impedance matching feasible for practical imaging …

An ultrasound imaging front-end system-on-a-chip with element-level impedance matching for acoustic reflectivity reduction

A Rezvanitabar, MS Kilinc, C Tekes… - … Circuits and Systems …, 2021 - ieeexplore.ieee.org
This paper presents an ultrasound imaging frontend system-on-a-chip that reduces the
acoustic reflectivity of the ultrasound transducer array in a broad bandwidth. It integrates, for …

An Electronically Tunable Multi-Frequency Air-Coupled CMUT Receiver Array with sub-100µPa Minimum Detectable Pressure Achieving a 28kb/s Wireless Uplink …

A Singhvi, A Fitzpatrick… - 2022 IEEE International …, 2022 - ieeexplore.ieee.org
Oceans play a critical role in our ecosystem-they regulate weather and global temperature,
serve as the largest carbon sink and the greatest source of oxygen. Maintaining ocean …