Part 1 of this FAQ looked at the basic available electronic filters – analog, switched capacitor, and digital – and briefly reviewed the attributes of each. As the frequencies to be filtered reach to 1 GHz and well beyond, while the selectively needed also became narrower, these filter approaches can no longer support many of […]
Open-top spring pin socket for 1-mm-pitch BGA packages
A new socket addresses high-performance requirements for burn-in and test applications. Called the SBT-BGA-6044, the socket contains a contactor that is a stamped spring pin with 19-gm actuation force per ball and cycle life of 125,000 insertions. The self-inductance of the contactor is 0.93 nH, insertion loss of < 1 dB at 14.1 GHz and […]
Isolated analog amps provide accurate current measurements
Silicon Labs has introduced a family of isolated analog amplifiers, voltage sensors and delta-sigma modulator (DSM) devices designed to provide accurate current and voltage measurement with very low drift across temperature. Based on Silicon Labs’ robust, third-generation isolation technology, the new Si89xx family provides flexible voltage, current, output and package options to help developers reduce BOM […]
Filters, Part 1: Analog, switched, and digital filters
Filters are essential functions in most circuits and systems; as frequencies extend into the multi-GHz range, surface acoustic wave (SAW) and bulk acoustic wave (BAW) filters are needed to meet the design objectives. An engineer I worked with (and whose name I have forgotten) once remarked to about electronic filters (and he was serious): “like […]
MRI, Part 2: Historical development (and lawsuits)
The modern MRI system is an amazing blend of diverse technologies, based on the realization that a small but critical aspect of the spin of hydrogen nuclei could be leveraged to provide a safe, non-invasive way to see inside a human body. Part 2 of this FAQ looks at the physics and other advances that […]
Heilind now stocking single-action lock connectors from Hirose
Heilind Electronics, an authorized distributor for Hirose, is now stocking the manufacturer’s FH62 Series FPC connectors. These robust connectors feature an easy-to-use single-action lock that secures through a simple insertion of the FPC after mounting — ultimately reducing assembly time. Because this design eliminates the requirement to close a locking lever while mating, it prevents […]
Tantalum caps can handle 150°C in industrial/automotive apps
AVX Corporation released a new series of miniature, surface-mount, J-lead tantalum capacitors that deliver high reliability and high volumetric efficiency in high-temperature automotive and industrial applications. The new F9H Series meets AEC-Q200 requirements, is compliant with RoHS2 directive 2011/65/EU, is rated for operating temperatures up to 150°C, and offers the industry’s highest CV/cc in a high-temperature […]
Analog Top Talks in February 2019 on EDABoard.com forums
Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around analog ICs and analog design. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com. Cascading filter after a two poles Sallen-Key – Hello I have a Sallen-Key topology lowpass, as in the picture, which […]
Optical amplifiers, Part 2: Basic implementations
Part 1 of this FAQ began an overview into the arcane world of all-optical amplifiers including where and why they are needed. Part 2 will briefly describe the four types and identify the two most commonly used for optical-fiber link signal boosting. Q: How “accurate” will this presentation be? A: Frankly, it will have large-scale […]
Micro-sized slide potentiometers for consumer, audio, medical, or industrial applications
TT Electronics has combined miniaturization with economy in the PSM050S-10B10KB – part of the PSM series of long-life miniature PCB mount slide potentiometers for audio, consumer, medical, and industrial applications. Available in six resistance variants ranging from 500Ω to 50kΩ, and offering linear response with better than 5% linearity tolerance, the 10mW micro miniature potentiometer […]
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