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9 years, 2 months ago. This question has been closed. Reason: Unclear question
Is it possible to use an external reference voltage "Vref"?
Is there a way to perform analog conversion using an externally supplied reference.
As far as I can determine the 1768 chip has a Vref pin but it is wired to Vdd on the MBED. The 1114 chip appears to have Vref hardwired. Previously I've used PIC series devices where you could set Vref to be either the supply or one analog input.
posted by Oliver Broad 26 Feb 2015