Calibration‐spur reduction in current‐steering DAC utilising digital‐and‐analogue hybrid return‐to‐zero (HRZ) method. Issue 21 (1st October 2015)

• Record Type: Journal Article
• Authors: Kim, W.‐C.; Kim, J.‐G.; Ahn, K.‐H.; Kim, G.‐J.; Park, S.‐H.; Ryu, S.‐T.
• Is Part Of: Electronics letters. Volume 51:Issue 21(2015)
• Page Start: 1649
• Page End: 1650
• Publication Date: 2015-10-01
• Subjects: calibration -- digital‐analogue conversion; calibration‐spur reduction technique -- digital‐and‐analogue hybrid return‐to‐zero method -- digital‐and‐analogue HRZ method -- current‐steering DAC -- round‐robin‐fashioned background current‐source calibration scheme -- spur‐free dynamic range -- signal‐to‐noise distortion ratio -- word length 12 bit; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2015.2161
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A simple‐but‐efficient calibration‐spur reduction technique is introduced that utilises the digital‐and‐analogue hybrid return‐to‐zero (HRZ) method in a current‐steering DAC employing a round‐robin‐fashioned background current‐source calibration scheme. A simulation with a 12 b 500 MS/s current‐steering DAC showed 9.9 and 7.8 dB improvements in the spur‐free dynamic range and signal‐to‐noise + distortion ratio, respectively, owing to the reduced calibration spur by the proposed HRZ technique.