Hi,
On 05/08/2016 09:53 PM, Attila Kinali wrote:
On Wed, 4 May 2016 15:26:37 +0200
Magnus Danielson <[email protected]> wrote:
Indeed. ADC conversion speed is not a big issue these days, so the Nutt
style of interpolator is just expensive to parallelize for speed, the
time-to-voltage system is better and should have a much better
recycle-time and thus result in less hardware needs.
True and not true. Yes, there are many ADCs that do high conversion
rates, but these are optimized for piplined applications where conversion
happens at a constant rate. Ie they expect a constant conversion clock
with a constant rate. If you want to trigger conversion at an arbitrary time,
you either have to build your own sampler or need to use one of the
non-pipelined ADCs whic are much slower (IIRC they stop around 5-10Msps
aka >100ns conversion time). Flash ADCs with direct access to the sampling
circuitry are basically extinct.
You can let the ADC convert as a continuous process as long as you
filter out the samples you are interested in.
Cheers,
Magnus
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