Re: Simple multi-channel serial ADC (8-ch)?

Hi Jörg,
May be you want to use a very cheap ATtiny with a 4067 as Mux? I'm sure
this isn't to beat. for low data rate you can create your own quad slope
AD using the cheapest controller to be found.

Or use a cheap 1-channel ADC and a HC4051. That's really hard to beat.

I would prefer a µC so you can implement the control of the 4051 with the
same timen than the ADC and the SPI/I2C or whatever else. Have a buffer,
possibility of averaging... and the noise is almost from peripheral clocks,
you don't need this with several µC. They can be very quiet, I guess more
quiet than a discrete ADC with external oscillator pin.

Marte


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