R01UH0822EJ0100 Rev.1.00
Page 876 of 1041
Jul 31, 2019
RX13T Group
26. 12-Bit A/D Converter (S12ADF)
Figure 26.29
Example of Disconnection Detection When Precharge is Selected
Figure 26.30
Example of Disconnection Detection When Discharge is Selected
Precharge
control signal
Discharge
control signal
Analog input
ANn
ON
OFF
Disconnection
Sampling capacitance
Example of the
external circuit
*1
Precharge
Note 1. The converted result should be used after fully evaluated because the result data when disconnection
occurs varies depending on the external circuit.
Unit 0: AVCC0
R = 1 MΩ
Precharge
control signal
Discharge
control signal
Analog input
ANn
OFF
ON
Disconnection
Sampling capacitance
Example of the external circuit
*1
Discharge
Note 1. The converted result should be used after fully evaluated because the result data when disconnection
occurs varies depending on the external circuit.
R = 1 MΩ
Unit 0: AVSS0