RL78/G13 CHAPTER 11 A/D CONVERTER
R01UH0146EJ0100 Rev.1.00 533
Sep 22, 2011
(10) Internal equivalent circuit
The equivalent circuit of the analog input block is shown below.
Figure 11-47. Internal Equivalent Circuit of ANIn Pin
ANIn
C1 C2
R1
Table 11-6. Resistance and Capacitance Values of Equivalent Circuit (Reference Values)
AVREFP, VDD ANIn Pins R1 [kΩ] C1 [pF C2 [pF]
ANI0 to ANI14 14 8 2.5 3.6 V ≤ VDD ≤ 5.5 V
ANI16 to ANI26 18 8 7.0
ANI0 to ANI14 632 8 2.5 1.6 V ≤ VDD < 3.6 V
ANI16 to ANI26 902 8 7.0
Remark The resistance and capacitance values shown in Table 11-6 are not guaranteed values.
(11) Starting the A/D converter
Start the A/D converter after the AV
REFP and VDD voltages stabilize.
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