Re: fast ADC
- From: John Larkin <jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Wed, 05 Aug 2009 16:23:01 -0700
On Wed, 05 Aug 2009 16:10:18 -0700, Joerg <invalid@xxxxxxxxxxxxxxx>
wrote:
John Larkin wrote:
The good news is that Hittite has announced a 28 G sample/second ADC.
The bad news is that it's 3 bits.
Yeah, but: Depending on performance you may be able to stagger or play
tricks like using a 2nd ADC for "in between" quantization steps of the
first. Done it a few times, can be tough to get an auto-cal going but we
got things like that into series production (at much lower frequencies
but higher bit numbers).
Is there a datasheet out? <drool, pant, pant ...>
No, a rep sent me a PowerPoint thing.
Other question is who's going to catch all that data flying out of it.
Must be like having to bat 2000 baseballs per second. And of course then
there is the price.
The data is demux'd, probably.
They also have a 10 Gs/s part at 6 bits, which is starting to sound
useful. It demuxes into eight LVDS streams at 1.25 gs/s each. Still a
handfull!
Also 8 bits at 6G. All new stuff.
Yeah, their pricing is insane. They have some fast flipflops for,
like, $200 each; similar OnSemis are more like $35.
John
.
- References:
- fast ADC
- From: John Larkin
- Re: fast ADC
- From: Joerg
- fast ADC
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