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 […]
Medical
Precision thin-film resistors offer ±0.01% tolerances, ±2ppm TCRs
With the proliferation of electronics in nearly every market sector, there is an increasing need for precision resistors. For markets such as medical instrumentation and control, industrial and automotive controls, communications, and test & measurement, these precision resistors must maintain electrical and environmental stability long term. Stackpole’s RNCF series of precision thin film resistors meet these […]
Thin-film resistors excel in high sulfur, high humidity settings
Environmental stability for thin film resistors has become more important with increased electronic content. Sulfur contamination for film resistors, for example, is becoming a more prominent issue for a wide range of end products. Electronic devices and circuitry may encounter sulfur in the presence of oils, lubricants, gaskets, hoses, and atmospheric gasses in highly industrial […]
PCB assembly tips for medical device manufacturing
By Suresh Patel, Sales Engineer, Mer-Mar Electronics Medical PCBs are built with the highest quality standards to ensure the precision and reliability of medical devices. PCB fabrication and assembly processes are converging on greater accuracy of health monitoring and diagnostic devices. Flexible treatments and faster information exchange systems are possible due to the improved design, […]
JFET optimized for high-end sensor front-end amplification
Linear Systems has announced the re-release of its LSK489 discrete component with specialized parameter grading. The LSK489 is one of the world’s premier JFETs optimized for use in high-end sensor front-end amplification designs. The LSK489 is a monolithic dual ultra-low-noise junction field effect transistor (JFET) optimized for use in high-end sensor front-end amplification designs. Linear […]
How does a precision rectifier work?
A precision rectifier, sometimes called a super diode, is an op amp circuit designed to behave like an ideal diode and is used in high-precision signal processing applications. It’s not a synchronous rectifier. The op-amp-based precision rectifier should not be confused with power MOSFET-based synchronous rectification. Because there is no diode voltage drop between the […]
What is PSRR and why is it important in op amps and LDOs?
The power supply rejection ratio (PSRR) describes the ability of a circuit to suppress any power supply variations from passing to its output signal and is typically measured in dB. It’s most often used with operational amplifiers (op amps), dc/dc converters, linear regulators, and low drop out regulators (LDOs). For op amps, the PSRR describes […]
Medical PCB assembly: Know these regulations and standards
The reliability and safety of Medical PCB assembly are of utmost importance as they directly impact human healthcare. It is one of the most critical applications that demand the best PCB performance. Setting stringent regulatory standards is compulsory in medical device manufacturing. The standards also apply to the printed circuit boards used in medical devices. […]
Analog front end reduces, size, extends life of remote-patient monitoring devices
Reduce the size and extend the life of bioimpedance (BioZ) remote-patient monitoring (RPM) devices with the MAX30009 low-power, high-performance BioZ analog front-end (AFE) from Analog Devices, Inc. (ADI). For developers of small, battery-powered, continuously wearable devices, this AFE on a chip offers clinical-grade vital sign measurements of bioimpedance analysis for patient health assessment for wellness wearables and […]
Subminiature snap switch supports ultra-low thru high-current apps
C&K has expanded its snap switch product offering with the new sealed subminiature ZMT Series. The ZMT Series snap switch is offered with IP67-rated encapsulated wires, customized levers, and can be offered as part of the module. The ZMT is an updated and improved version of the popular ZMA switch. C&K developed the ZMT in direct response […]
