NEW METHOD OF ON-LINE SUCCESSIVE-APPROXIMATION ADC CALIBRATION

Abstract

A new method of successive approximation ADC calibration without interruption of the main conversion process is proposed. The method is based on the use of information redundancy in the form of redundant positional number systems. The method is based on the selection and analysis of unused combinations in the redundant ADC conversion characteristic.

Keywords

• analog-to-digital converter (ADC)
• successive-approximation algorithm
• self-calibration
• redundant number systems
• ADC transfer function