[sdiy] sample and (infinite) hold

[ASSI]

On Mittwoch, 5. Januar 2005 07:05, Scott Juskiw wrote:
> Has anyone built a sample and infinite hold and can shed some light
> in my direction?

If 12bit resolution is enough, one of the cheaper microcontrollers that 
sport both ADC and DAC should be the appropriate solution. For instance 
a TI MSP430F15x would be sufficient, once the DMA is set up and some 
other things initialized it should even function well as an infinite 
S&H without the CPU running. If you need more channels, just multiplex 
the ouput to a few not-quite-infinite analog S&H amplifiers and refresh 
these periodically.


Achim.
-- 
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