2021-04-07 11:11 PM
Figure 29 of the STM32G473 datasheet calls out an unspecified, internal RADC. Is there any data on this internal resistance?
2021-04-08 03:30 AM
Hello @AMcIn.1 ,
Usually, the value of Radc is used to determine the value of Rain and then Sampling time.
The maximum value of RAIN can be found in DS12712.
So, please refer to Table 62: Maximum ADC RAIN.
Imen
2021-04-13 06:45 AM
Hello @AMcIn.1 (Community Member) ,
The Radc is not constant - it depends from temperature, VDD voltage, usage of Analog switches booster . Therefore datasheet contains values of Rain for given sampling times (worst cases).
Regards
Igor
