The impact of combined channel mismatch effects in time-interleaved ADCs

@article{citeulike:3000208, abstract = {A time-interleaved multichannel analog-to-digital converter (ADC) achieves high sampling rates with the drawback of additional distortions caused by channel mismatches. In this paper, we consider the dependency of the signal-to-noise-and-distortion ratio (SINAD) on the combination of several different channel mismatch effects. By using either explicitly given mismatch parameters or given parameter distributions, we derive closed-form equations for calculating the explicit or the expected SINAD for an arbitrary number of channels. Furthermore, we extend the explicit SINAD by the impact of timing jitter. We clarify how channel mismatches interact and perform a worst case analysis of the explicit SINAD for individual mismatch errors. We also show that equations describing the expected SINAD of individual mismatch errors are special cases of our general formulation. We indicate how to use the expected SINAD for finding efficient optimization priorities and demonstrate the importance of worst case analyses.}, author = {Vogel, C. }, booktitle = {Instrumentation and Measurement, IEEE Transactions on}, citeulike-article-id = {3000208}, doi = {http://dx.doi.org/10.1109/TIM.2004.834046}, journal = {Instrumentation and Measurement, IEEE Transactions on}, keywords = {adc, analysis, channel, combined, deterministic, error, gain, l, mismatches, offset, snr, statistica, time, time-interleaved, timing}, number = {1}, pages = {415--427}, posted-at = {2008-07-14 21:22:07}, priority = {5}, title = {The impact of combined channel mismatch effects in time-interleaved ADCs}, url = {http://dx.doi.org/10.1109/TIM.2004.834046}, volume = {54}, year = {2005} }

TY - JOUR ID - citeulike:3000208 L3 - citeulike-article-id:3000208 TI - The impact of combined channel mismatch effects in time-interleaved ADCs T2 - Instrumentation and Measurement, IEEE Transactions on JF - Instrumentation and Measurement, IEEE Transactions on VL - 54 IS - 1 SP - 415 EP - 427 N2 - A time-interleaved multichannel analog-to-digital converter (ADC) achieves high sampling rates with the drawback of additional distortions caused by channel mismatches. In this paper, we consider the dependency of the signal-to-noise-and-distortion ratio (SINAD) on the combination of several different channel mismatch effects. By using either explicitly given mismatch parameters or given parameter distributions, we derive closed-form equations for calculating the explicit or the expected SINAD for an arbitrary number of channels. Furthermore, we extend the explicit SINAD by the impact of timing jitter. We clarify how channel mismatches interact and perform a worst case analysis of the explicit SINAD for individual mismatch errors. We also show that equations describing the expected SINAD of individual mismatch errors are special cases of our general formulation. We indicate how to use the expected SINAD for finding efficient optimization priorities and demonstrate the importance of worst case analyses. KW - adc KW - analysis KW - channel KW - combined KW - deterministic KW - error KW - gain KW - l KW - mismatches KW - offset KW - snr KW - statistica KW - time KW - time-interleaved KW - timing AU - Vogel, C PY - 2005/// UR - http://dx.doi.org/10.1109/TIM.2004.834046 ER -