Chinese Physics C > 2013, Vol. 37 > Issue(11): 116102 DOI: 10.1088/1674-1137/37/11/116102

A new method of waveform digitization based on time-interleaved A/D conversion

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Abstract：
Time interleaved analog-to-digital conversion (TIADC) based on parallelism is an effective way to meet the requirement of the ultra-fast waveform digitizer beyond Gsps. Different methods to correct the mismatch errors among different analog-to-digital conversion channels have been developed previously. To overcome the speed limitation in hardware design and to implement the mismatch correction algorithm in real time,this paper proposes a fully parallel correction algorithm. A 12-bit 1-Gsps waveform digitizer with ENOB around 10.5 bit from 5 MHz to 200 MHz is implemented based on the real-time correction algorithm.
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YE Chun-Feng, ZHAO Lei, FENG Chang-Qing, LIU Shu-Bin and AN Qi. A new method of waveform digitization based on time-interleaved A/D conversion[J]. Chinese Physics C, 2013, 37(11): 116102. doi: 10.1088/1674-1137/37/11/116102

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Received: 2012-12-11
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

A new method of waveform digitization based on time-interleaved A/D conversion

Corresponding author:ZHAO Lei,

Received Date:2012-12-11
Accepted Date:1900-01-01
Available Online:2013-11-05

Abstract:Time interleaved analog-to-digital conversion (TIADC) based on parallelism is an effective way to meet the requirement of the ultra-fast waveform digitizer beyond Gsps. Different methods to correct the mismatch errors among different analog-to-digital conversion channels have been developed previously. To overcome the speed limitation in hardware design and to implement the mismatch correction algorithm in real time,this paper proposes a fully parallel correction algorithm. A 12-bit 1-Gsps waveform digitizer with ENOB around 10.5 bit from 5 MHz to 200 MHz is implemented based on the real-time correction algorithm.