3 ms·
What frequencies, how many channels of analog/digital, what bit depth, how much memory, etc? What is your actual application? And what do you mean "PC attache
by cadr 3y ago
What frequencies, how many channels of analog/digital, what bit depth, how much memory, etc? What is your actual application? And what do you mean "PC attached" here? What is your budget?
I don't think you are going to find much for less than a Picoscope.
Maybe something like the Analog Discovery 3? Under 400 USD, 2 channel oscilloscope (30 MHz), 16 channel digital, 2 channel arbitrary waveform generator (12 Mhz) https://digilent.com/shop/analog-discovery-3/ https://digilent.com/shop/analog-discovery-3/
Rigol and Siglent both make mixed signal scopes that will do two channels analog at 100MHz and 16 channel digital for ~1k USD.
- rkangel 3y agoI wasn't familiar with the the Analog Discovery. Seems good value as it covers a lot of bases in one go. 30 Mhz is a bit low, but would cover the lower speed digital stuff which is what I need a scope for most of the time. Two scope channels, some logic analyser channels, ideally 50 MHz, ideally 12 bit. That works at as about £500 from Picoscope which is pretty cheap. I was astonished at these Spectrum Analyzers and I was wondering if there was something from china at a fraction of that.
- cadr 3y agoThe TinySA is kind of like a tiny radio, just tuning through the channels and measuring how loud at each frequency. And it managed to leverage an exiting chip (designed for other purposes), which is how it got to be so cheap. This is a great explanation of the signal path: https://www.youtube.com/watch?v=z63cXhYzS1A https://www.youtube.com/watch?v=z63cXhYzS1A