Hi all,
I wonder if anyone could help me with my issue. I'm using the ADS1120 to sample a single ended signal with the PSU as the reference. I configure the registers with the following values, I have tried with single shot and continuous techniques.
REG0 = 0x81
REG1 = 0x00
REG2 = 0xC0
REG3 = Default
I have verified the SPI timing and configuration, the PSU and the signal going into the ADC, I have no problem with all of these aspects.
The problems I'm en-counting are:
1. In continuous conversion mode, the ADC eventually stops generating interrupts at a random interval but happens between 2 and 10 samples.
2. In continuous conversion mode, the ADC often 'locks up' and only returns the same same forever.
3. In both continuous and single ended mode I see random spike in my data, often saturating at the top or bottom rails while the input voltage to the ADC remains constant. I also see random corrupt data that always goes to the same value.
