Hello
Thank you for taking the time to answer this question.
We would like to use the ADS1015 in a low noise application. The application uses a 16bit converter, different converter, and has great noise performance. The ADS1015 would be used to sample a couple voltages at power up and then again probably every couple of minutes. So the ADS1015 would be in a powerdown state most of the time. In powerdown mode are there any sources of noise that may be coming for the converter such as the oscillator is still on or is the internal reference still on? I would assume the oscillator is shutdown and the reference is also shutdown but I would like that verified as it is not clear in the datasheet. Also how is the internal reference generated? I noted on another ADC from another company that the internal reference was generated from a bandgap reference and then amplified up with a switched capacitor amplifier. Probably doesn't affect the performance of the ADC as it was only 10 bits but in a low noise system we have that switching can be killer if it leaks back into the system.
Okay thank you for your time.
Gary
