We are using the ADS1119 in our current design, and it is configured to continuous conversion, data rate of 20 sps and we are using the four channels single ended.
As expected, the DRDY generates an interrupt at every 50 ms, but we observed that sometimes it take longer to finish the conversion, and eventually it stops completely.
It will only work again if it is reinitialized via I2C.
We couldn´t find any information regarding this issue in the datasheet. Do you have any idea why this happens?
Below you can find images of the DRDY signal, with the interrupts evenly spaced in the first picture and with the longer delay in the second picture.
Thank you in advance.