R01UH0823EJ0100 Rev.1.00
Page 1611 of 1823
Jul 31, 2019
RX23W Group
44. 12-Bit A/D Converter (S12ADE)
Figure 44.26
Example of Disconnection Detection When Discharge is Selected
Precharge
control signal
Discharge
control signal
Analog input
ANn
OFF
ON
R = 1 M
Disconnection
Sampling capacitance
Example of the
external circuit
*1
Discharge
VREFL0
or AVSS0
Note 1. The converted result should be used after fully evaluated because the result data when disconnection
occurs varies depending on the external circuit.