Dynamic calibration of current-steering DAC

Su, Chao

doi:10.31274/rtd-180813-17147

Cited by 1 publication

(1 citation statement)

References 16 publications

(26 reference statements)

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“…A glitch originates from imperfect timing during the change between two consecutive states of the converter. In [3] it has been shown that the dynamic settling error is of minor importance as opposed to the dynamic glitch error.…”

Section: The Origin Of Glitchesmentioning

confidence: 99%

A Digital Calibration Technique for the Correction of Glitches in High-Speed DAC's

Catteau

Rombouts

Weyten

2007

2007 IEEE International Symposium on Circuits and Systems (ISCAS)

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Abstract-The accuracy of high-speed DAC's is limited by dynamic effects such as glitches. Here, a digital calibration technique to compensate this effect is presented. Because of the digital approach, this solution can not be an exact correction of the phenomenon, but a band limited attenuation. The approach consists of adding a (digital) compensation signal to correct the glitch. Both a 2-tap and a 4-tap correction are investigated and it is shown that they can greatly reduce spurs over a bandwidth of 30% and 60% of the Nyquist band respectively, provided the glitch energy is known. Next, it is shown how an adaptive calibration with an additional low-speed calibration ADC can be used to estimate the glitch energy. Simulations confirm that the spectral performance can be greatly improved this way.

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Section: The Origin Of Glitchesmentioning

confidence: 99%