The Amp Hour Electronics Podcast

A weekly show about the trends in the electronic industry.

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#347 – Re-scoping the problem

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  1. OK – nit-picking from me… Every single customer that I’ve met with or spoke with have said that they really like the flex-channel configuration, even though you trade off an analog channel per 8-channel logic input. I haven’t come across one that didn’t like it. Many scopes support higher res external displays – for more than a decade – so we’ll focus on the scope’s display, which is the largest and highest resolution (15.6″ 1920×1080). The LeCroy has more total channels (8+1+16) and double the analog channel memory. The new Tek 5 series has double the analog bandwidth (2GHz), 2.5x the analog sample rate (the LeCroy is 2.5GS/s, not 10GS/s), 5x the digital channel sample rate with double the digital signal bandwidth and much higher voltage range (+/-40V threshold). Tek has analog passive probes to 1GHz (<4pF), and provides one per channel with the scope. Here's a quick 5 minute overview that I did:
    https://www.youtube.com/watch?v=4vjQl8hQdFY

    • Have to agree with you here. The LeCroy is less bandwidth, which makes a significant difference in my opninion. I feel like Dave is not giving tek the credit they deserve. I believe the LeCroy can do 10GS/s total, whereas the Tek can take 8 times 6.5GS/s, which is just so much more data for their chips to deal with..

      • The LeCroy is actually 2.5GS/s. If you read their datasheet carefully, the 10GS/s is achieved by doing a 4x sin(x)/x interpolation (they call it Enhanced Sample Rate).