[oopic] Re: Easiest way to 16 /O for voltage metering?

--- In oopic@yahoogroups.com, "jeffkaypic" <jeffkaypic@...> wrote:
>
> I need to poll in somewhat-real-time 16 voltages. Since my OObot40
> only can do what's on it, how can I add more in the simplest way.
> Again, real-real-time is not an issue even up to a ful second,
etc...
>
> Jeff K.
>

There are hundreds of A/D converters that use the I2C interface. You
can hang them on the local I2C bus (the one that talks to the EEPROM)
and you are up and running.

Analog Devices comes to mind...

www.analog.com

Probably a
parametric search for single-ended (0-5V) and I2C interface will
shorten the list.

Maybe the AD7997

http://www.analog.com/UploadedFiles/Data_Sheets/AD7997_7998.pdf

Richard

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