EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: Christopher on July 27, 2013, 11:34:22 am
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Guys,
Looking for a cheap 2 channel digital scope. At least 50 MHz with USB so I can save snaps on a flash drive.
Is the Rigol DS1052E still a good option? Or is there something a bit more 2013?
I found a Siglent SDS1102CNL for £215 on ebay which looks good. It's only got 32kpts memory, but I cant see that being a massive problem?
Will only be looking at some digital signals like SPI I2C so i won't need to look back that far, if I did i'd use the logic sniffer.
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Guys,
Looking for a cheap 2 channel digital scope. At least 50 MHz with USB so I can save snaps on a flash drive.
Is the Rigol DS1052E still a good option? Or is there something a bit more 2013?
I found a Siglent SDS1102CNL for £215 on ebay which looks good. It's only got 32kpts memory, but I cant see that being a massive problem?
Will only be looking at some digital signals like SPI I2C so i won't need to look back that far, if I did i'd use the logic sniffer.
SDS1102CNL have max 40k
SDS1000DL models have max 32k (DL models have max 500MSa/s)
SDS1102CNL In one channel use and if horizontal speed is so that it use 1GSa/s then it is 40k for this single channel. In other cases 20k for each channel.
For very low speeds it have also 6M record memory (can use only low speeds (when scope is in scan mode). It can store continuous record.
But be careful when you estimate memory needs.
It is good to note that it also affect to samplerate.
If you use example 100us/div and one channel.
With "normal memory (20k)" samplerate is 5MSa/s and with LongMemory samplerate is 100MSa/s
If you look these sellers "specifications" note that there may be what ever mistakes (example this 32k) Many sellers do not know anything what they sell. They only resend cartons.
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I would just go with the Siglent. I ordered one myself as well. Go on siglent's website, and here are the specs for it. It seems pretty good for the price. 330 USD for the scope, and free shipping via UPS. About the scope, 100MHz, 40KPt mem, 1GS/s sample rate, and good features.
http://siglent.com/en/product/detail.aspx?id=100000004399111&nodecode=119008001 (http://siglent.com/en/product/detail.aspx?id=100000004399111&nodecode=119008001) :)