temperature / voltage sensor recomendation?

Hello,

In my next uC design I need to check periodically battery and uC 
temperature and battery and power-supply voltage.

I do not have a native I2C nor 1Wire on the uC wherever CAN or SPI or 
some IOs are available.
What I prefer would be a kind of simple 2wire interface to some small 
and handy sensors.

Some recommendations ? Are there some don't use sensors?

Thx,

theAdib.
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Adib Taraben wrote:
> Hello,
>
> In my next uC design I need to check periodically battery and uC
> temperature and battery and power-supply voltage.
>
> I do not have a native I2C nor 1Wire on the uC wherever CAN or SPI or
> some IOs are available.
> What I prefer would be a kind of simple 2wire interface to some small
> and handy sensors.
>
> Some recommendations ? Are there some don't use sensors?

You can find ADC that also include temperature sensors.  I know ADI
makes a few.  But I have found that external ADCs tend to be a bit
expensive compared to the MCU, especially when they contain a
temperature sensor.  I suggest that you go with an MCU that has an
internal temp sensor and ADC.  The ADuCxxxx family of parts are
specifically designed to have good ADC at a reasonable price.  The low
end devices are 8051 powered and the higher end devices contain an ARM7
core.