It is now trivial and non-invasive to measure blood-oxygen saturation SpO2, thanks to LEDs, algorithms, and ICs for pulse oximetry — it’s a very long way from having to draw blood and send it out for assessment. Part 1 of this FAQ discussed the principle of the non-invasive, light-based pulse-oximetry systems for reading blood-oxygen saturation […]
Analog Top Talks in October 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. Scheme for multiple solid state relays controlled by MCU – I need to control multiple AC mains power terminals […]
Quartz crystals and oscillators, Part 2: Advanced crystals
Part 1 of this FAQ established the context for the quartz crystal as the core of an oscillator whether used as a system clock or as a frequency-setting element in a tuning circuit. This part looks at the achievable performance, the factors that affect it, and what can be done for highest performance. Q: What […]
Twistable, flexible waveguides cover 5.85 to 50 GHz bands
Pasternack has introduced a new line of twistable and seamless flexible waveguides operating in the 5.85 GHz to 50 GHz range and cover 10 frequency bands from WR-137 to WR-22. Typical applications include DAS systems, base stations, antennas and test instrumentation. Pasternack’s newly released line of flexible waveguides is made-up of 78 total models – 39 seamless and […]
Precision current sources are rad-hardened for satellite apps
Renesas Electronics introduced its latest radiation-hardened devices – the ISL70591SEH and ISL70592SEH precision current sources, designed to deliver ultra-high performance, small footprint, and ease of use required in the most demanding environments, including telemetry, tracking & command, attitude & orbital control, and electrical power subsystem applications. The new devices are Renesas’ first current source ICs in […]
GPS, Part 2: Implementation
Part 1 of this FAQ looked at the basic principles of the GPS system. Part 2 looks at some hardware circuitry used to implement a GPS receiver as well as the unappreciated role that Einstein’s Theory of Special Relativity plays in providing an accurate GPS. Q What are the key elements of a GPS receiver? […]
High-frequency integrated thin film band-pass filters come in ultraminiature packages
AVX Corporation introduced new 0805-case BP Series multilayer, integrated thin film (ITF) band-pass filters. Designed for broad compatibility with a wide range of high-frequency wireless applications, including mobile communications systems, satellite TV receivers, GPSs, vehicle-locating systems, and wireless LANs, the series is available in five frequency bands spanning 1,308MHz to 4,320MHz with 50Ω characteristic impedance, and is rated for […]
Analog Top Talks in September 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. Load seen by opamp in non-inverting config – I’ve come across the result that the load seen by an […]
Ultraminiature equalizers combine resistive and capacitive elements
AVX Corporation released the new GEQ Series RC equalizers. These ruggedly constructed, ultraminiature (EIA 0402, 1005 metric) equalizers combine high-performance tantalum nitride (TaN) resistive elements and silicon/oxygen/nitrogen (SiON) capacitive elements with AVX’s proprietary, automotive-qualified, glass-sandwich FLEXITERM surface-mount technology, which provides an extra measure of protection against flexure damage during installation. The new GEQ Series equalizers are also manufactured with 100% laser trimming […]
e-Fuses, Part 2: Building or buying an e-Fuse
The electronic fuse is a powerful and versatile tool in the designer’s kit, but building one requires careful selection of the core amplifier; IC embodiments solve the problem. Part 1 of this FAQ looked at the basic structure of the electronic fuse or e-fuse. This part looks at the requirements on the current sense amplifier […]
- 1
- 2
- 3
- …
- 26
- Next Page »
@AnalogICTips
EE World Online