The question that interested me was: How strongly does the SNR of the ADC-peripheral of the H7 depend on the chosen clock source? Unfortunately, neither the H7 datasheets nor application notes like AN5354 treat this topic. The FFT plot shown in figure 1 of AN5354 Read More …
Schlagwort: ADC
H7 ADC revisited (Bandpass sampling and analog bandwidth of the 16-bit ADC peripheral of the STM32H7, Part III)
Summary: It is shown that the shape of the transfer function and of the SNR of the internal ADC of the STM32H7 vs. frequency of the applied signal can be explained with a very simple simulation model up to quite high signal frequencies. The PLL Read More …
Bandpass sampling and analog bandwidth of the 16-bit ADC peripheral of the STM32H7, Part II
The STM32H7-application sends ADC data to the PC via USART3. Rx and Tx of USART3 are connected to the ST-Link debugger on board of the NUCLEO-STM32H743ZI. The ST-Link driver that gets installed when you install the STM32CubeIDE supplies also a virtual COM port that can Read More …
Bandpass sampling and analog bandwidth of the 16-bit ADC peripheral of the STM32H7, Part I
I have to admit of having had some prejudices about ADCs in microcontrollers.From my experience, they are slow and noisy of no use for really demanding applications.Well, the 16-bit ADC peripheral of the STM32H7 of ST Microelectronics may be a real game-changer. It seems to Read More …