Help in finding a ADC with 10K SPS < Sampling rate > 3K SPS and with 20 < resolution > 14 bits

[umair_ejaz04]

Hello everyone,

I'm currently in search of an Analog-to-Digital Converter (ADC) for a project I'm working on and would greatly appreciate your recommendations. Here are the specific requirements:

• Sampling Rate: Between 10 Samples Per Second (SPS) and 3,000 Samples Per Second (SPS)
• Resolution: Between 14 bits and 20 bits
• Compatibility: Will be using it with an STM32 Nucleo H743ZI2

If anyone has experience with ADCs that fit these criteria or can suggest reliable models, please share your insights. Additionally, any advice on suppliers or vendors who offer good deals on such components would be very helpful.

Thank you in advance for your assistance!

[AScha.3]

Hi,

so why not using the one of the ADCs in H743 ?

They easily fulfill your requirements .

[TDK]

Your requirements aren't particularly hard to meet. There are parametric searches at most suppliers with thousands of results for those. Use one with an SPI interface for easy interface to the chip.

> vendors who offer good deals on such components

If budget is a concern, using the built-in 16-bit ADC on the STM32H7 (16 bit) seems a better choice. Note that the analog design needs to be done well in order to get suitable precision from the ADC. If you want 14 bits of precision, you'll need to incorporate many of the design suggestions here:

cd00211314-how-to-get-the-best-adc-accuracy-in-stm32-microcontrollers-stmicroelectronics.pdf