2020-03-03 09:42 PM
Hellow.
Mr.Kang system engineer in South Korea.
Looking an ADC high performance STM32.
The specification is as follows:
1~5Msps , 2channel, PGA (if possible)
2020-03-03 10:25 PM
I would suggest ST's MCU finder application : https://www.st.com/en/development-tools/st-mcu-finder.html
Or, you manually browse through the online MCU data.
I'd say, almost all M4 STM32 devices make at least 1Msps. To achieve the upper 5Msps, some devices would require a dual/triple mode, where two or three ADCs units are working in an interleaved fashion.
The package type should be listed in the MCU Finder, too.
A 12 bit resolution and 8 or more channels per ADC are standard for ST's SAR-ADCs.
2020-03-03 11:05 PM
Does any ST MCU work in triple interleaved mode?
2020-03-04 08:26 PM
I ran my nucleo board stm32f429ZIT 3 with 3 adc at 3 x 2.4 = 7.2 Mhz
I run my nucleo board with stm32f303RET with 4 adc at 4 channels of 6 mHz each, or interleaved for 2 of 12 Mhz channels
This is at 10 bits, at 12 bit its only 5.14 or 10.28 mhz
The 303 also has 4 pga opamps
2020-03-04 11:42 PM
The F407 (at the F4 Discovery) and F74x (at the F746 Nucleo) do.
I didn't check for others.