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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electronica@tdnet
on Nov 19, 2011 10:48 AM
Hi AndyR,

it seems, that I have the same problem, because I like to develop a 8-16 ch Digitizer in the size of Handheld or Smarttphone and in the News

http://www.analog.com/en/press-release/11_10_11_Highspeed_ADConvert_Feature_More_Channels/press.html

I have found the Killer:

AD9637: Octal, 12-Bit, 40/80 MSPS Serial LVDS 1.8 V A/D Converter

:-D which is realy what I like to use, uhm, 40 MSPS are enough for me! :-D

Unfortunately I have no clue, how to handel 8 or 16 LVDS channels... I was searching the Website and the Internet for App Notes or Design References but have found nothing

OK, I like to use a bigger ARM Cortex A9 (1000MHz Dual or Singel-Core) for it, which has PCIe capabilities.

Time to create a Forum Group vor the LVDS Stuff

Greetings

Michelle

P.S.: I have studies while I was in the french Army and something like a Maintenance Engineer, which mean, I have lost more then 10 years in the Army and now since more then 4 years I am out and have to re-learn all from scratch! -- Not very funny!
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electronica@tdnet
on Nov 19, 2011 10:48 AM
Hi AndyR,

it seems, that I have the same problem, because I like to develop a 8-16 ch Digitizer in the size of Handheld or Smarttphone and in the News

http://www.analog.com/en/press-release/11_10_11_Highspeed_ADConvert_Feature_More_Channels/press.html

I have found the Killer:

AD9637: Octal, 12-Bit, 40/80 MSPS Serial LVDS 1.8 V A/D Converter

:-D which is realy what I like to use, uhm, 40 MSPS are enough for me! :-D

Unfortunately I have no clue, how to handel 8 or 16 LVDS channels... I was searching the Website and the Internet for App Notes or Design References but have found nothing

OK, I like to use a bigger ARM Cortex A9 (1000MHz Dual or Singel-Core) for it, which has PCIe capabilities.

Time to create a Forum Group vor the LVDS Stuff

Greetings

Michelle

P.S.: I have studies while I was in the french Army and something like a Maintenance Engineer, which mean, I have lost more then 10 years in the Army and now since more then 4 years I am out and have to re-learn all from scratch! -- Not very funny!
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Interfacing with lots of ADCs using LVDS

AD9637: Octal, 12-Bit, 40/80 MSPS Serial LVDS 1.8 V A/D Converter

AD9637: Octal, 12-Bit, 40/80 MSPS Serial LVDS 1.8 V A/D Converter