Hi Luis, A couple of things to note with the katADC: 1. The analogue band is only good from about 10MHz up to 650MHz. You can populate a wider band front end but that hasn't been tested yet. It sounds like this would not be a major problem for you. 2. They have so far only been produced in South Africa and you would have to inquire with Mo if he is ready to make them.
In terms of performance and programmability - for a 50MHz band these will both work fine and they are fully supported in the tool-flow, so no problems there. More characterisation data is available for katADC than is on the wiki - let me know and I will get you access. -Francois On Wed, Sep 15, 2010 at 8:09 PM, Luis Quintero <[email protected]> wrote: > Hi all, > > I am looking for a dual channel (single pixel, dual pol antenna) 8 bits > iADC, and my options are the ADC2x1000-8 (v1.1, 2x1Gsps) and the KatADC > (2x1.5Gsps). The bandwidth is more than enough for my application (radar, > <=50MHz bandwidth). But, I am considering ~Gsps sampling rate in order to > use this system in other applications (e.g. spectrometer). > > I wonder if someone has experience comparing these iADCs in terms of > performance and/or programmability (almost the same, I think...). For now, > the KatADC is my best choice; the RF front-end offers a lot of flexibility. > But I would like to know if this iADC has any issues. > > Finally, any comment about the ADC2x550-12 (2x550Msps, 12bits) or > ADC2x400-14 (2x400 Msps, 14bits). The wiki does not have much information > about these boards. > > Thanks, > > -- > Luis A. Quintero > NAIC Arecibo Observatory > > > > -- Francois Kapp Sub-system Manager Digital Back End meerKAT SKA SA (p) +27 (0)21 531 7282 (f) +27 (0)21 531 9761 (m) +27 (0)82 787 8407
