A system includes a first digital-to-analog converter (DAC), a replica
DAC, a control module, and a calibrating DAC. The first DAC receives a
first input and generates a first analog output based on the first input.
The replica DAC receives the first input and generates a replica analog
output based on the first input. The control module generates a first
control based on the first input. The calibrating DAC generates a
calibration analog output based on the first control. The calibration
analog output adjusts the replica analog output.