All items tagged with JFET (25)

New Nisshinbo NL8902 High-Performance Dual Audio Op-Amp with JFET Input

June 30, 2025 by audioXpress Staff

New Nisshinbo NL8902 High-Performance Dual Audio Op-Amp with JFET Input

Nisshinbo Micro Devices recently expanded its lineup of premium audio components with the launch of the NL8902, a high-performance dual op-amp inspired by the renowned MUSES range. The NL8902 combines low noise, low distortion, high slew rate, and high EMI immunity with exceptional audio fidelity, making it ideal for high-end audio applications while remaining cost-effective for entry-level designs. Available in a compact EMP-8 package and a smaller DFN package.

Modern Op-Amp Distortion Tests: Part 2 — A Few More BJT Types and JFET Devices

April 16, 2025 by Douglas Self

Modern Op-Amp Distortion Tests: Part 2 — A Few More BJT Types and JFET Devices

Many new op-amp types have appeared in the last decade, and Douglas Self thought it was time to evaluate those for distortion performance. In Part 1 of his article, he measured BJT-input devices using a similar protocol for five different loads and testing for basic op-amp distortion in favorable circumstances. In this second article, the measurement of BJT types is concluded, and he moves the JFET types to the test bench.

Linear Systems Announces LSK489 Premier Performance JFET Re-Release

August 4, 2022 by audioXpress Staff

Linear Systems Announces LSK489 Premier Performance JFET Re-Release

Linear Integrated Systems, the world class producer of ultra-low-noise JFETS and other small-signal discrete semiconductors, 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, and the re-release in 2022 introduces improved manufacturing consistency.

Linear Systems Releases Low-Cost, Low-Noise LS844 JFET for High-Performance Applications

July 28, 2022 by audioXpress Staff

Linear Systems Releases Low-Cost, Low-Noise LS844 JFET for High-Performance Applications

Linear Systems announced the re-release of the low-noise, low-cost LS844 series dual JFET with immediate large-scale availability and large-volume pricing. The re-released LS844 is the latest evolution of a classic dual JFET developed and introduced by Linear Systems over 20 years ago. The company has refined the part’s design and fabrication processes to improve its low noise, matching and Common Mode Rejection Ratio qualities while retaining the linearity and other characteristics sought by audio and other circuit designers.

New EVO 16 USB-C Audio Interface by Audient

May 23, 2022 by audioXpress Staff

New EVO 16 USB-C Audio Interface by Audient

British audio company Audient announces the launch of the latest product in its EVO by Audient range, until now available in two-, and four-channel USB-C audio interfaces. The new EVO 16 is a 24 inputs and 24 outputs audio interface, featuring eight EVO preamplifiers, advanced converter technology, as well as the company's Smartgain feature which can be used on all 8 channels simultaneously, and is a basic feature of EVO interfaces to ‘make recording easy’.

Linear Systems Announces 2022 Small-Signal Discrete Semiconductor Data Book

April 13, 2022 by audioXpress Staff

Linear Systems Announces 2022 Small-Signal Discrete Semiconductor Data Book

Linear Integrated Systems, the world-class designer and manufacturer of precision, high-performance, small-signal discrete semiconductors, announced the release of its 2022 Small Signal Discrete Data Book. The Data Book provides all Linear Systems’ datasheets in one spot. The Table of Contents includes product category, part number and part description, so users can browse the entire product line with ease. There is also a dedicated section on packages, highlighting the latest package innovations and packing options.

audioXpress.com - The Most Popular Stories of 2021

December 28, 2021 by audioXpress Staff

audioXpress.com - The Most Popular Stories of 2021

We looked at the most-read articles of 2021 in audioXpress.com (including selected articles from Voice Coil magazine), and we created this Top 10 list of news stories and online articles. 2021 expanded slightly on the record-breaking year that was 2020 for audioXpress.com, in terms of number of visits and regular users of the website. Visitors from all over the world returned more often to read the more than 7,700 stories available. Which of the topics and stories published online in 2021 were the most popular? Here are the results!

New Approaches to Speaker Optimization in audioXpress December 2021

November 11, 2021 by audioXpress Staff

New Approaches to Speaker Optimization in audioXpress December 2021

audioXpress December 2021 is now available. Learn how Room Correction and Speaker Calibration is influencing efforts towards the Self-Calibrating Loudspeaker, Dirac's take on Spatial Room Correction Technology, and how to Measure Directivity of In-Wall Loudspeakers. Richard Modafferi describes his unique crossover design build, Frans de Wit talks about DC Power Supplies, Morty Tarr discusses important aspects of amplifier design, and Michel Nieuwenhuizen offers an Arduino-based motor control for turntables. Start reading online or in print.

Fresh From the Bench: Parasound Halo JC 5 Stereo Power Amplifier - The Measurements

October 27, 2021 by Stuart Yaniger

Fresh From the Bench: Parasound Halo JC 5 Stereo Power Amplifier - The Measurements

Oliver A. Masciarotte was looking for an amplifier that he could respect without emptying his bank account. Richard Schram offered to send the Parasound JC 5, his company’s largest stereo power amplifier for evaluation. Anticipating the fun of enjoying the pleasures of this John Curl design, Oliver accepted the challenge, and Stuart Yaniger tested the JC 5 to confirm the amplifier’s merits with actual measurements. This article was originally published in audioXpress, September 2021.

Build a Discrete High Output Current Buffer with JFET Input

June 24, 2021 by Dimitri Danyuk

Build a Discrete High Output Current Buffer with JFET Input

This article from Dimitri Danyuk explores ways to provide better isolation between input and output terminals and lower input noise current using JFETs from Linear Integrated Systems. For unity-gain buffer applications there are many open-loop IC buffers on the market based on bipolar technology. They are mostly complementary emitter followers connected in series. With the appearance of complementary JFETs from Linear Integrated Systems, it is possible to construct a discrete buffer with JFET input. This article was originally published in audioXpress, March 2019.

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