Impact of Time-interleaved Analog-to-Digital Converter Mismatch on Digital Receivers

Soudan, Michael and Farrell, Ronan (2008) Impact of Time-interleaved Analog-to-Digital Converter Mismatch on Digital Receivers. In: IEEE International Conference on Electronics, Circuits, and Systems, 31st August - 3rd September 2008, Malta.

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This paper presents the impact that gain, offset and timing mismatch in time-interleaved analog-to-digital converter (TIADC) have on digital receiver systems. An analysis of the mismatch errors shows the dependency of the different errors from the spectrum of the input signal. A discrete-time TIADC model is derived allowing to simulate the mismatch effects of the individual ADCs. Finally, simulations results present the performance degradation that can be expected by the usage of non-ideal analog-to-digital converters (ADC) sampling alternately the inphase and quadrature signals in a direct conversion receiver architecture when random data is processed.

Item Type: Conference or Workshop Item (Paper)
Keywords: Time-interleaved Analog-to-Digital Converter Mismatch; Digital Receivers;
Academic Unit: Faculty of Science and Engineering > Electronic Engineering
Item ID: 1397
Depositing User: Dr. Ronan Farrell
Date Deposited: 26 May 2009 14:34
Refereed: Yes

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