# Looking for links to projects where video decoders are used as general purpose ADCs

The pricing for high speed ADCs is very high. However, since video decoders are used in just about every flat panel display, and these generally contain a couple of ADCs, their prices are very low. So, the obvious question arises. Is it possible to use a video decoder as a multichanneled general purpose ADC....and even interleaving the channels to increase the bandwidth further. I've been scouring the web and haven't been able to find any papers or DIY projects doing this. If anyone reading this is aware of any such projects, then please point me towards them. I'd love to see if this is possible (both using them channel by channel and interleaving the channels to get an even higher sampling rate). In terms of pricing, a video speed general purpose ADC would cost in the order of $30 per chip, whereas the video decoder would be priced at about$3 per chip, a pricing order of 10:1 !!!! So, if you know of a project or paper related to this, please pass on the link. Many thanks in advance.

• Yes! Someone did discover that a common satellite DVB decoder could be used as a software defined radio (SDR) chip and now you can get a $15 SDR solution, instead of the previous$1000 solutions. So, that is very similar to what I'm thinking. Making use of chips for uses that they were not designed for can occasionally result in innovative solutions to previously unsolved problems. On your 2nd point, most of the DIY scope projects don't handle more than audio frequency ranges. I'm looking for things like 250MS/s .... So, thank you and anyone else reading, keep the ideas coming.... – webmasterpdx Jan 25 '16 at 10:29