Dear all,
I am working with the RA6M2 (Part number R7FA6M2AD3CFB) ADC.
Here are my queries:
1. The datasheet mentions the ADC conversion time as 0.4us/channel, but Table 55.35 indicates a conversion time of 1.06 us/channel (AN000 to AN002).
Could you assist me in understanding these calculations?
Note: We are not utilizing channel-dedicated sample-and-hold circuits, and the sampling states are set to 24.
2. We are using a total of 10 channels, so I am assuming the total conversion time equals the conversion time of a single channel multiplied by the total number of channels.
I refer below datasheet
Renesas RA6M2 Group User's Manual: Hardware
Hello Kanu,
First of all, if you don't use channel-dedicated sample-and-hold circuits, please forget the value 1.06us.
For your case, you mentioned that you have 24 sampling states which means that the total sampling time is 16.7ns*24 = 0.4us:
Νοw the conversion time is the sum of the sampling time and comparison time
From the test conditions, it seems that the comparison time is approximately 0.213us.
So, the total conversion time in your case for one channel will be 0.613us.
Also, you are right, the total time for 10 channels will be 0.613*10 = 6.13us.
Regards,
AL_Renesas