ADS1220 wiring on Raspberry Pi 4B

[Suasua44]

Hi everyone,

I'm trying to connect an Olimex ADS1220 on my Raspberry Pi 4B.

I'm a beginner with this kind of SPI ADC and I don't really know how to properly wire it to the RPi. Particularly, I don't understand why there is two AVSS pins and where is the SCLK pin.

Thank you in advance for helping me !

Sua

[LubOlimex]

The clock is CLK.

Just connect AVSS and GND to GND of the Pi 4B.

For VDD and AVDD connect them to the 3.3V of the Pi 4B.

Maybe also check this project:

https://github.com/OLIMEX/BB-ADS1220/tree/master/SOFTWARE/OLINUXINO