>> limited to Vdd plus a bit, and I need to be able to
>> measure up to ~10V.
>> 
>> A resistor divider network could bring it down to
>> something reasonable, 
>> but I was hoping for other options.
>----------------------------------------
>Just use a Zener (ie 5 volt) to drop the voltage to
>the range you would like to read. I made a battery
>monitor for my motorcycle, and used a 10 volt zener to
>get a full 5 volt swing reading 10 to 15 volts... See 
>http://members.rogers.com/sniderj/Bat_Mon/bat_mon.html

How much linearity have you retained? 

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