18msps sampling in stm32f303 48/64 pin packages

[armindavatgaran]

Posted on October 03, 2016 at 08:15

Hello

according to stm32f303cb datasheet, 48 pin package doesn't have ADC12/34 shared channels.

If one needs to sample an input with 18msps in dual interleaved mode, how it will be possible in 48 pin package? is it possible to connect two pins (e.g. ADC1_IN1 & ADC2_IN1) externally?

[Walid FTITI_O]

Posted on October 05, 2016 at 17:02

Hi tag.aseok, 

Yes, You can  connect the signal to the 2 input pins, to reach the 18MSPS with a 6-bit resolution. But for the 12-bit resolution case, 10MSPS is the maximum sampling.-Hannibal-