Basics of modeling transistors

By David Herres All transistors operate according to the exact same physical principles as diodes, the only difference being that they have greater complexity because there are additional P-N…

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The basics of diodes

By David Herres Ordinary crystalline silicon semiconductors work according to the same physical principles as the old-world galena (PbS, lead sulfide) cat’s whisker radio-frequency detectors in early crystal sets. The…

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MDO3104 overview, part three: Using the multifunction generator

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Compliance tester for DDR4 systems

Teledyne LeCroy, worldwide in high speed I/O analysis and protocol test solutions, announced its new Kibra 480 Compliance Analyzer. New DDR4 enabled systems are now available in the…

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Fast Fourier Transforms

By David Herres A previous article discussed the Fourier Transform. Now we turn to a variation, the Fast Fourier Transform (FFT), which has assumed great importance since it…

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Power measurements span 96-dB dynamic range

Keysight Technologies, Inc. announced the U2040 X-Series wide dynamic range power sensors, consisting of four USB models for wireless and radar applications, and a dedicated LAN model for…

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Basics of Fourier transforms

By David Herres Joseph Fourier (1768-1830), in his principal work, “On the Propagation of Heat in Solid Bodies” (1807), laid the groundwork for what is now known as…

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Flat-screen technology part one: Plasma

By David Herres A previous article discussed the cathode-ray tube, for a long time the only game in town for displaying waveforms. It provided a clear display and…

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Top five T&M threads on EDAboard

Our sister site EDAboard.com hosts technical discussions on a variety of subjects, including test & measurement themes. Here are the top five recent conversations oriented around making measurements….

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A simple human voice display on the oscilloscope

By David Herres For years, science-fiction movies — particularly those involving robots — have created ambience by placing an oscilloscope in the background, configured to display a trace of the human voice….

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8-channel wireless temperature measurement module OM-WLS-TEMP

Omega introduces the OM-WLS-TEMP series of wireless USB 2.0 full-speed temperature input module (fully compatible with both USB 1.1 and 2.0). This CE compliant product features 8 temperature…

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Parametric curve tracer simplifies high-voltage C-V tests

For test engineers responsible for configuring high power semiconductor test systems, the new Keithley Model 8020 High Power Interface Panel improves connectivity and simplifies complex measurements like high…

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Galil DMC-4020 moves unique instrument for leaf analysis

Custom Lab Software Systems Inc., a developer of precision instrumentation, used a Galil DMC-4020 to build the Micron Level 3-D Confocal Profiling and Thickness Measurement System. This is…

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DDR bus simulator generates BER contours

Keysight Technologies, Inc. introduced the DDR Bus Simulator; the industry’s first tool to generate accurate Bit-Error-Rate (BER) contours for the JEDEC DDR memory bus specification. The software product,…

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Kelvin probes for low-resistance measurements

TEGAM, Inc, a supplier of innovative microohmmeters, has just introduced five new Kelvin probes. When used with TEGAM’s R1L bond meters or the 1740 or 1750 microohmeters, they…

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Variable Frequency Drives: Viewing the DC Bus

By David Herres In the field of motion control it’s often necessary to vary the speed of an electric motor and even reverse its direction of rotation. When…

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Parametric test systems headed for X-FAB

Keithley Instruments, Inc. announced it had received orders for additional S530 Parametric Test Systems from X-FAB Silicon Foundries. X-FAB, a Germany-based foundry for analog/mixed-signal devices and micro electro-mechanical…

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Lucky kids get Keysight scopes

Keysight Technologies, Inc. announced it has donated an MSOX4154A oscilloscope to each of the universities supporting the company’s student internship program. The universities include: University of Colorado Boulder…

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Mixed Domain Instrument Technology

By David Herres The Tektronix MDO4000 is what is known as an integrated oscilloscope. This means it combines the functions of specific electronic test equipment with that of…

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LE250 laser sensor delivers highly optimized performance

Banner Engineering has expanded its L-Gage LE family of laser sensors with the new LE250. Optimized for measurements ranging from 100 mm to 400 mm, the LE250 features…

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Digitizers capture, transfer data simultaneously

Keysight Technologies, Inc. announced the availability of new signal processing firmware for its family of U53xxA PCIe digitizers. The new firmware (option -TSR) allows simultaneous capture and transfer…

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RF PA/FEM Characterization & Test, Reference Solution characterizes power amps

Keysight Technologies, Inc. announced a new PXI Reference Solution for RF power amplifier (PA) characterization and test. The Reference Solution, which performs S-parameter, harmonic distortion, power and demodulation…

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Next-gen audio analyzer checks voice quality

Keysight Technologies, Inc. announced the U8903B performance audio analyzer, the next-generation model of the U8903A. The U8903B is extremely flexible with configurable options such as speech and voice…

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New TESA wireless inductive probes at IMTS

Hexagon Metrology announced their new line of Brown & Sharpe/TESA wireless inductive probes with groundbreaking technical features that are unique to the metrology marketplace. The new inductive probes…

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When Oscilloscopes Went Digital

By David Herres The major players in oscilloscope development have been Tektronix Inc., Teledyne LeCroy Corp. and Agilent Technologies (originally Hewlett-Packard, now Keysight Technologies). These giants watch each…

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