Fast high resolution predictive analog-to-digital converter with error correction

摘要: An analog-to-digital conversion system uses a fast converter having resolution less than the to convert difference between previously predicted value and current analog value. The converted is summed with compute actual of input signal greater that converter. high digital thus obtained becomes for next conversion. This by digital-to-analog same accuracy but not as output an which compared obtain signal. sampled held provide includes gain scaling switching circuit compensate errors would occur when true prediction exceeds range low resolution,