Low-noise circuitry is critical to image quality of medical ultrasound, an indispensable diagnostic tool. Efficiency versus noise It may seem that if there is a tradeoff between power-supply noise versus potential efficiency, the need for ultralow noise in the ultrasound application should prevail. After all, a few more tens of milliwatts of dissipation should not […]
Applications
Minimizing electrical noise to improve medical-ultrasound images, Part 2
Low-noise circuitry is critical to image quality of medical ultrasound; an indispensable diagnostic tool. Despite the conceptual simplicity of the underlying principle, a complete, high-end ultrasound imaging system is a complicated device (Figure 1). The ultimate performance of the system is largely determined by the transducer and analog front end (AFE), while post-processing of the […]
Minimizing electrical noise to improve medical-ultrasound images, Part 1
Low-noise circuitry is critical to the image quality of medical ultrasound, an indispensable diagnostic tool. Ultrasound technology, a widely used non-invasive tool in medical diagnostics and other applications, has shifted from static to dynamic images and from black-and-white to color Doppler images. These important enhancements are largely due to the introduction of digital ultrasound technology […]
Integrated ASIC platform aids in low-power designs for space, terrestrial, and industrial applications
Orca Systems has introduced a highly integrated ASIC platform that significantly improves system performance and reduces power consumption for power-sensitive space, terrestrial, industrial and edge computing applications. Orca’s new ORC5000 ASIC platform has been applied to develop Orca’s first ASIC product, the ORC5990, designed for use in low-Earth orbit (LEO) IoT satellite payload and terrestrial IoT […]
Bare element shunt resistors help lower thermal stress of PCBs
Current sensing for motor control applications often requires robust current handling and the lowest possible PCB temperatures. Unfortunately, high current or overload current handling typically means higher PCB temperatures. One cost-effective and popular solution to these requirements is a raised bare element sense resistor. The elevated bare element yields PCB temperatures of 30% to 40% […]
Clock oscillator achieves 0.2 ppm frequency tolerance
Depending on temperature range, the SiT7910 Super TCXO from SiTime can attain frequency stability of less than 0.1 ppm. Clock oscillator circuits serve two functions. They provide a clock timing signal for digital circuits such as microprocessors and they keep track of time, often for time-stamping of events. While oscillators for digital circuits typically produce […]
Common mode filter for automotive Ethernet reduces line-to-line capacitance
TDK Corporation has announced the introduction of its new ACT1210E Series (3.2 x 2.5 x 2.5 mm (L x W x H)) of common mode filter for automotive Ethernet 10BASE-T1S. Mass production of this new common-mode filter began in February 2023. This product is the industry’s first common mode filter for automotive Ethernet 10BASE-T1S. Adopting […]
Copolymer resin meets stricter regulatory requirements for 1.5Kv solar systems
SABIC launched a breakthrough polycarbonate (PC)-based copolymer resin, well-suited for photovoltaic (PV) connector bodies, that meets stricter performance and regulatory requirements for emerging 1.5Kv solar systems. The new LNP EXL9334P copolymer resin achieves the highest comparative tracking index (CTI) level (UL PLC0) and IEC as Material Group 1 (IEC MG 1). It also delivers low-temperature […]
Eight SiC Schottky barrier diodes rated at 1200V
Diodes Incorporated announced the release of its first Silicon Carbide (SiC) Schottky barrier diodes (SBD). The portfolio includes the DIODES DSCxxA065 series with eleven products rated at 650V (4A, 6A, 8A, and 10A) and the DIODES DSCxx120 series with eight products rated at 1200V (2A, 5A, and 10A). These wide-bandgap SBDs bring the benefits of significantly […]
Potentiometer models feature resistance ratings from 1 to 2000 kΩ
CUI Devices’ Motion and Control Group announced the addition of a new line of potentiometers. Available in shaft or shaftless options, these rotary potentiometers feature resistance ratings from 1 to 2000 kΩ and panel mount or through-hole mounting styles. With a rotational life of 10,000 cycles, CUI Devices’ PT and PTN family of potentiometers are ideal for […]
