The monthly “Flea at MIT” swapfest is where you go to find electronics long forgotten but still working, usually.
Amplifiers
Multifunction GaAs pHEMTs target 100-GHz apps
WIN Semiconductors Corp. has released its newest 0.1µm pHEMT technology: PP10-20. Building on the proven PP10 platform, this second-generation technology offers a substantial transistor gain, improving the ƒt/ƒmax to 160GHz and 240 GHz. These improvements maintain the reliable 4V operation necessary for backhaul power amplifiers and high linearity receivers operating from W-band through D-band. Targeting […]
Amplifier boosts signals from 2 GHz to 18 GHz
The AM1111 amplifier from Atlanta Micro provides 16 dB of gain from 2 GHz to 18 GHz. You can cascade multiple amplifiers to boost signals as needed. Powered by +5 V and packaged in 3 mm QFN package, the AM1111’s input and output provide a 50-Ω DC-blocked impedance.It consumes 500 mW and has a 2.5…
Negotiate through 1/f noise challenges towards sample sizes into the 100s of years
Measuring and determining 1/f voltage noise over a multiple-year sample requires an operational amplifier and effective 1/f knowledge. This article shows how to identify and determine the actual op amp 1/f voltage noise across a sample size of years and explains why the 1/f voltage noise is a non-issue at higher frequencies. After many years […]
Dual 5-V op amp sports 50-MHz gain-bandwidth, low input offset voltage, 6.5 nV/√Hz input voltage noise
STMicroelectronics’ TSV792 dual 5V operational amplifier (op-amp) combines 50MHz gain-bandwidth with precision attributes including low input offset voltage and extremely low input voltage noise of just 6.5nV/√Hz. The typical 50MHz gain-bandwidth product enables accurate amplification of high-frequency signals. Adding a fast slew rate of 30V/µs, the TSV792 is suited to photodiode-signal conditioning in battery-powered smoke detectors. […]
Sound design considerations for Class D amps
The first two FAQs in this series, “Class D Amplifiers for High-Efficiency Switched-Mode Sound” and “Class D Audio – Why Now?” focused on basic Class D amplifier topologies, modulation techniques, general component and technology advancements that have made Class D amplifiers an increasingly viable option, and the evolving tradeoffs between silicon and GaN power devices. […]
Waveguide-to-waveguide transitions deliver minimal loss and VSWR as low as 1.08:1
Fairview Microwave Inc., an Infinite Electronics brand, has launched a new line of waveguide transitions that operate from 5.85 to 110 GHz across 14 frequency bands. These waveguide adapters are ideal for high power wireless applications such as test benches, instrumentation, MILCOM, SATCOM, telecom and radar applications where signal strength and integrity are critical. Fairview’s […]
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 […]
Isolated amplifier enables more accurate measurements of ±10-V signals
Texas Instruments introduced a new reinforced isolated amplifier that features the industry’s highest precision and working voltages, and longest lifetime reliability. With exceptional performance that includes better nonlinearity, lower offset and gain error, and higher temperature stability, the ISO224 allows engineers to overcome performance limitations and design high-precision systems. The new amplifier is designed for […]
USB Type-C and USB Power Delivery controllers source up to 200 W
Texas Instruments introduced two new USB Type-C and USB Power Delivery (PD) controllers, with fully integrated power paths to simplify designs, minimize solution size and speed time to market. The TPS65987D and TPS65988 offer system designers the industry’s highest level of integration which can reduce design complexity and overall cost. The devices are the industry’s […]
