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external ADC working with SPI TI mode

SebB
Associate II

Hi,

Would someone have a external ADC that works with SPI TI mode to recommend? 

Thank you.

1 REPLY 1
Pierre_Paris
ST Employee

Hello @SebB,

The SPI interface is compatible with the TI protocol. (which is the default case)

However, I inform you that STM32F4 has his own internal ADCs. In fact, you must know, the 12-bit ADC is a successive approximation analog-to-digital converter. It has up to 19 multiplexed channels allowing it to measure signals from 16 external sources, two internal sources, and the VBAT channel. The A/D conversion of the channels can be performed in single, continuous, scan or discontinuous mode. The result of the ADC is stored into a left- or right-aligned 16-bit data register.

Would someone have a external ADC that works with SPI TI mode to recommend? 

You must choose your ADC regarding your application and what you are searching in terms of :

- Resolution (bits)

- Architecture (Delta-Sigma, SAR...)

- Number of input channels

- SNR

- Price...

Best Regards,

Pierre

 

 

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