In RZ/A1H Group User Manual, under section '27.7.4 Processing of Analog Input Pin' of 'A/D convertor' it is mentioned that "To prevent damage from voltage surges at the analog input pins (AN0 to AN7), connect an input protection circuit like the one shown in Figure 27.8".
I would like to know whether this input protection circuit comes in-built in GR-PEACH board or it has to be connected externally when integrating a sensor to the GR-PEACH board?
I checked the schematic diagram of GR-Peach (Rev. B, C, D, E, & F), and the analog pins are directly connected to the header. Meaning, the board doesn't have a built-in protection circuit for the analog pins.
JBRenesasRulz Forum Moderator