Continuously integrating high-resolution analog-to-digital converter

摘要: A continuously integrating analog-to-digital converter (ADC) calculates a digital output by an input voltage over number of time intervals using multisloping technique to define the in terms slope count. residue ADC is used lieu run-down interval integrator calculate least significant bits output. This accomplished first sampling voltage, and then after intervals, second tune. The difference between two voltages converted into fractional count multiplication with calibration constant. can be added from integrator, so that resulting total directly proportional at high resolution. Multiplication constant may effectuated controlling gain on digital-to-analog (DAC), or like device.