Interfacing with lots of ADCs using LVDS

OliverSedlacek

on Mar 17, 2011

I need to process up to 24 ADCs, each running at 5-10MSPS. Each ADC needs to have 12 bit resolution, and the ADCs are spread over 3 PCBs. The AD9220ARS would do as a good economical 12bit ADC, but interconnecting 24 of them looks ugly. Quad or octal devices might be a way forward, but has anyone tried using LVDS interfaces to get the sheer number of interconnects down?

Tags: adc lvds

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OliverSedlacek
on Nov 22, 2011 9:52 AM
Michelle,

I'd still look at FPGAs to implement your DSP logic. Dedicated DSPs are now targeted at specific applications (e.g. audio compression, hi-fi processing), and as soon as you want to do something a bit unusual they become a bit cumbersome. You can tuck a soft core processor into them if you still need to execute some C code.
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OliverSedlacek
on Nov 22, 2011 9:52 AM
Michelle,

I'd still look at FPGAs to implement your DSP logic. Dedicated DSPs are now targeted at specific applications (e.g. audio compression, hi-fi processing), and as soon as you want to do something a bit unusual they become a bit cumbersome. You can tuck a soft core processor into them if you still need to execute some C code.
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Interfacing with lots of ADCs using LVDS