12-Bit Successive Approximation ADC

A 12-bit successive approximation analog to digital converter. Minimum voltage=25 mV Maximum voltage=2.02 V Resolution=0.49 mV Added ability to adjust counter to desired level since there are 4096 discrete levels. The twelve logic sources on the left represent the LSB at the top and MSB at bottom. Set them high for the desired level then set the logic source below the counter high to load value. The initial setting is a high frequency, low amplitude run. For greater range, flip the switch for a lower frequency example (but slow as hell) and load the counter. I've already set it to close in on the signal.

published 9 years ago