Datasheet

V850ES/JG3 CHAPTER 13 A/D CONVERTER
R01UH0015EJ0300 Rev.3.00 Page 409 of 870
Sep 30, 2010
(12) Compare voltage generation DAC
This compare voltage generation DAC is connected between AV
REF0 and AVSS and generates a voltage for
comparison with the analog input signal.
(13) ANI0 to ANI11 pins
These are analog input pins for the 12 A/D converter channels and are used to input analog signals to be
converted into digital signals. Pins other than the one selected as the analog input by the ADA0S register can be
used as input port pins.
Caution Make sure that the voltages input to the ANI0 to ANI11 pins do not exceed the rated values. In
particular if a voltage of AV
REF0 or higher is input to a channel, the conversion value of that
channel becomes undefined, and the conversion values of the other channels may also be
affected.
(14) AV
REF0 pin
This is the pin used to input the reference voltage of the A/D converter. Always make the potential at this pin the
same as that at the V
DD pin even when the A/D converter is not used. The signals input to the ANI0 to ANI11 pins
are converted to digital signals based on the voltage applied between the AV
REF0 and AVSS pins.
(15) AV
SS pin
This is the ground pin of the A/D converter. Always make the potential at this pin the same as that at the V
SS pin
even when the A/D converter is not used.