PSoC 5 ADC's Voltage Ref | Cypress Semiconductor
PSoC 5 ADC's Voltage Ref
With the 2*VDAC Vref sourcing option, can you apply low voltages to the range? For example, with the VDAC, it is theoretically possible to set the range to 8mV (4mv*2). I would assume that this would probably cause a lot of noise, or cause a major reduction in SINAD. It seems that we also have to use external decoupling capacitors too.
If this is the case, what is the lowest range that we can set using the VDAC and still get good results? For example, would setting the VDAC to 0.512V give it a good performance range of 1.024V (0.512V*2)?
Any clarification would be helpful.