An almost-GHz active differential oscilloscope probe
https://www.electronics-lab.com/an-almost-ghz-active-differential-oscilloscope-probe/
Christer wanted to see how a 500MHz differential clock was behaving so he decided to build an active probe. To simulate the circuit he used TINA spice software and documented the process in three parts on his website. What I really wanted was an active differential probe which should be able to look at […]
Eye Diagram Basics: Reading and applying eye diagrams
https://www.electronics-lab.com/eye-diagram-basics-reading-and-applying-eye-diagrams/
Deepak Behera, Sumit Varshney, Sunaina Srivastava, and Swapnil Tiwari discuss about using an oscilloscope to create eye diagrams and quickly evaluate system performance and gain. Accelerating data rates, greater design complexity, standards requirements, and shorter cycle times put greater demand on design engineers to debug complex signal integrity issues as early as possible. Because today’s serial […]
Easily measure diode capacitance and reverse recovery
https://www.electronics-lab.com/easily-measure-diode-capacitance-and-reverse-recovery/
Glen Chenier @ edn.com wanted to find out the characteristics of an unknown diode to be able to replace it with an equivalent one so he decided to make some measurements using his test equipment. In this article he show us how to measure the junction capacitance, Cj, and reverse recovery time Trr of a diode using […]
Choosing $1 sound card for DC-capable low speed oscilloscope
https://www.electronics-lab.com/choosing-1-sound-card-for-dc-capable-low-speed-oscilloscope/
Tomasz Ostrowski has tested some cheap USB sound cards as low speed oscilloscope interfaces/recorders. He writes: I’ve tested some cheap ($1) USB sound cards for DC sampling capability, in particular for using as low speed oscilloscope/signal recorder. Some (http://tomeko.net/dsoundscope/c_media.php or one from this thread: http://www.elektroda.pl/rtvforum/topic3106124.html) don’t seem to work despite removing DC blocking capacitor, but […]
DIY Oscilloscope using Arduino and Graphic LCD
https://www.electronics-lab.com/diy-oscilloscope-using-arduino-and-graphic-lcd/
Prasad Pandit @ youtube.com: I have designed an Oscilloscope using Arduino Mega 2560 and 128×64 GLCD. It works pretty good for verification of signal the range of input frequency is upto 10-12MHz and Sampling rate is 200KSPS. It has no Attenuation so you will have to convert highvoltage signal to 5 v pTp signal. And yes […]
Compensation of Oscilloscope Probes
https://www.electronics-lab.com/compensation-of-oscilloscope-probes/
by Maurizio @ dev.emcelettronica.com: Using simple wires to measure signals with the oscilloscope would result in unreadable plots on the scope, the main reason being the noise coupled onto the “probe” itself. The first line of defense against that would be to use a coaxial cable as a probe, which would prevent external noise coupling. An unwanted […]
Open source pocket USB oscilloscope; 30 MHz, multi-platform
https://www.electronics-lab.com/open-source-pocket-usb-oscilloscope-30-mhz-multi-platform/
by Graham Prophet @ edn-europe.com: Running on Apple iPad, Android, Microsoft Windows and Linux, LabNation’s (Antwerp, Belgium) open source USB oscilloscope, SmartScope, is the result of a Kickstarter campaign commenced in 2014 – the project raised 645% of the funding goal within 30 days. Believed to be the first test equipment designed to run on multiple […]
EEVblog #797 – Siglent SDS1000X Oscilloscope Review
https://www.electronics-lab.com/eevblog-797-siglent-sds1000x-oscilloscope-review/
In a world first Dave takes an initial first impressions look at the new Siglent 1000X Series 200MHz entry level oscilloscope. What do you get for US$499? How does it compare to the Rigol DS2000 Series? EEVblog #797 – Siglent SDS1000X Oscilloscope Review – [Link]
Miniscope v2f
https://www.electronics-lab.com/miniscope-v2f/
Here is another variant (after miniscope v2a, b, c, d, e) of simple PC/USB oscilloscope/recorder: http://tomeko.net/miniscope_v2f/ It extends miniscope v2e with PGA (MCP6S21) offering same sampling frequency (480 ksps, 8 bit real time streaming to PC allowing continuous recording up to 512M samples) but 8 gain ranges and high input impedance. Estimated price is $6 […]
EEVblog #790 – Lecroy Wavejet 354 Touch Oscilloscope Teardown
https://www.electronics-lab.com/eevblog-790-lecroy-wavejet-354-touch-oscilloscope-teardown/
Take a look inside the 500MHz 4 channel Teledyne Lecroy WaveJet Touch 354 oscilloscope. EEVblog #790 – Lecroy Wavejet 354 Touch Oscilloscope Teardown – [Link]