digital background calibration

A 13-ENOB Second-Order Noise-Shaping SAR ADC Realizing Optimized NTF Zeros Using the Error-Feedback Structure

JSSC, 2018

A 6-bit 0.81-mW 700-MS/s SAR ADC With Sparkle-Code Correction, Resolution Enhancement, and Background Window Width Calibration

JSSC, 2018