Minimising Quantization Error

Dear Colin, is adjusting the gain settings the only method to minimise quantization error by the oadc?

There are no other settings that we see such as range .



Yup - there is no range select on the input (per-say). The bonus feature of the OpenADC is a little jumper on it, you can set it to the ‘ADJ’ position and there is then a potentiometer which allows you to adjust the VREF level of the OpenADC. This provides a small amount of additional adjustment range - I think the VREF can vary from something like 0.5V to 2.0V.