Multiply Your Sampling Rate with Time-Interleaved Data Converters

Abstract: Interleaving multiple analog-to-digital converters (ADCs) is usually performed with the intent to increase a converters effective sample rate, especially if there are no or only few off-the-shelf ADCs available that fulfill the desired sample, linearity and AC requirements of such applications. However, time-interleaving data converters is not an easy task, because even with perfectly linear components, gain/offset mismatches and timing errors can cause undesired spurs in the output spectrum. The following article provides valuable insight into the theoretical approach of time-interleaved analog-to-digital converters and the kind of roadblocks (and how to compensate for them) a designer usually encounters when building a time-interleaved system.
Maxim > Design Support > Technical Documents > Tutorials > A/D and D/A Conversion/Sampling Circuits > APP 989
Maxim > Design Support > Technical Documents > Tutorials > Basestations/Wireless Infrastructure > APP 989
Maxim > Design Support > Technical Documents > Tutorials > High-Speed Signal Processing > APP 989
Keywords: interleaving, time-interleaving, high-speed, analog-to-digital converter, high-speed ADC, coarse quantizer, fine quantizer,
flash converter, bandwidth limitation, offset error, gain error, mismatches, nonlinearities, clock phase noise, clock jitter
Mar 01, 2001
TUTORIAL 989

Multiply Your Sampling Rate with Time-Interleaved Data
Converters
Mar 01, 200