Digital to analog converter tolerant to element mismatch
Abstract:
According to an aspect, a tri-level digital to analog converter (DAC) comprises a first set of switches turned on to cause a first analog value with a first error as an output for a first digital value, a second set of switches turned on to cause a second analog value with a second error as the output for a second digital value, wherein, both the first set of switches and the second set of switches are turned on to cause a third analog value, proportional to the first error and the second error, as the output for a digital value equal to zero, and both the first set of switches and the second set of switches are turned off to cause a fourth analog value equal to zero as the output for a fourth digital value representing a reset state.
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