Bandwidth-efficient calibration method for nonlinear errors in M-channel time-interleaved ADCs

AbstractIn order to enhance the effective resolution of time-interleaved analog-to-digital converters (TI-ADCs), both linear and nonlinear channel mismatches should be carefully calibrated. This paper concentrates on a bandwidth-efficient background calibration method for nonlinear errors in M-channel TI-ADCs. It utilizes the least-mean square algorithm as well as a certain degree of oversampling to achieve adaptive mismatch tracking. The calibration performance and computational complexity are investigated and evaluated through behavioral-level simulations. Furthermore, a calibration strategy for narrow-band input signals is proposed and verified as an improvement of the basic calibration structure for such signals.

[1]  Hui Xu,et al.  Joint Blind Calibration for Mixed Mismatches in Two-Channel Time-Interleaved ADCs , 2015, IEEE Transactions on Circuits and Systems I: Regular Papers.

[2]  Håkan Johansson,et al.  Time-interleaved analog-to-digital converters: status and future directions , 2006, 2006 IEEE International Symposium on Circuits and Systems.

[3]  Mikko Valkama,et al.  Digital correction of frequency response mismatches in 2-channel time-interleaved ADCs using adaptive I/Q signal processing , 2015 .

[4]  Christian Vogel,et al.  Linearization of Time-Varying Nonlinear Systems Using A Modified Linear Iterative Method , 2014, IEEE Transactions on Signal Processing.

[5]  Filippo Attivissimo,et al.  Effect and compensation of ADC nonlinearity on magnetic accommodation measurements , 2013 .

[6]  Hui Xu,et al.  Blind calibration of nonlinearity mismatch errors in two-channel time-interleaved ADCs , 2014, 2014 21st IEEE International Conference on Electronics, Circuits and Systems (ICECS).

[7]  Kun Shi,et al.  Blind volterra system linearization with applications to post compensation of ADC nonlinearities , 2012, 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP).

[8]  Li Tan,et al.  6 – Finite impulse response filter design , 2013 .

[9]  W. Black,et al.  Time interleaved converter arrays , 1980, 1980 IEEE International Solid-State Circuits Conference. Digest of Technical Papers.

[10]  Håkan Johansson,et al.  Efficient signal reconstruction scheme for M-channel time-interleaved ADCs , 2013 .

[11]  S. Chan,et al.  New Iterative Framework for Frequency Response Mismatch Correction in Time-Interleaved ADCs: Design and Performance Analysis , 2011, IEEE Transactions on Instrumentation and Measurement.

[12]  Christian Vogel,et al.  A Flexible and Scalable Structure to Compensate Frequency Response Mismatches in Time-Interleaved ADCs , 2009, IEEE Transactions on Circuits and Systems I: Regular Papers.

[13]  Filippo Attivissimo,et al.  Measuring the static characteristic of dithered A/D converters , 2002 .

[14]  Gernot Kubin,et al.  Analysis and compensation of nonlinearity mismatches in time-interleaved ADC arrays , 2004, 2004 IEEE International Symposium on Circuits and Systems (IEEE Cat. No.04CH37512).

[15]  Lilian Bossuet,et al.  Fast Digital Post-Processing Technique for Integral Nonlinearity Correction of Analog-to-Digital Converters: Validation on a 12-Bit Folding-and-Interpolating Analog-to-Digital Converter , 2011, IEEE Transactions on Instrumentation and Measurement.

[16]  K. V. Lever,et al.  Nonlinear system compensation based on orthogonal polynomial inverses , 2001 .

[17]  Haruo Kobayashi,et al.  Technique to Improve the Performance of Time-Interleaved A-D Converters with Mismatches of Non-linearity , 2008, 2008 17th Asian Test Symposium.

[18]  Patrick Satarzadeh,et al.  Adaptive Semiblind Calibration of Bandwidth Mismatch for Two-Channel Time-Interleaved ADCs , 2009, IEEE Transactions on Circuits and Systems I: Regular Papers.

[19]  Hui Xu,et al.  Adaptive Background Estimation for Static Nonlinearity Mismatches in Two-Channel TIADCs , 2015, IEEE Transactions on Circuits and Systems II: Express Briefs.

[20]  Håkan Johansson,et al.  A Polynomial-Based Time-Varying Filter Structure for the Compensation of Frequency-Response Mismatch Errors in Time-Interleaved ADCs , 2009, IEEE Journal of Selected Topics in Signal Processing.

[21]  Christian Vogel,et al.  Adaptive Blind Background Calibration of Polynomial-Represented Frequency Response Mismatches in a Two-Channel Time-Interleaved ADC , 2011, IEEE Transactions on Circuits and Systems I: Regular Papers.

[22]  Qingjiang Li,et al.  Estimation method for nonlinearity mismatch in time-interleaved analog-to-digital converters , 2014, 2014 IEEE International Symposium on Circuits and Systems (ISCAS).

[23]  J. Jacob Wikner,et al.  Digital estimation and compensation method for nonlinearity mismatches in time-interleaved analog-to-digital converters , 2015, Digit. Signal Process..

[24]  Hae-Seung Lee,et al.  A Zero-Crossing-Based 8-bit 200 MS/s Pipelined ADC , 2007, IEEE Journal of Solid-State Circuits.

[25]  G. P. Gualtieri,et al.  A modified Volterra series approach for nonlinear dynamic systems modeling , 2002 .

[26]  Christian Vogel,et al.  Adaptive blind compensation of gain and timing mismatches in M-channel time-interleaved ADCs , 2008, 2008 15th IEEE International Conference on Electronics, Circuits and Systems.

[27]  Gernot Kubin,et al.  Modeling of time-interleaved ADCs with nonlinear hybrid filter banks , 2005 .

[28]  Håkan Johansson,et al.  Reconstruction of nonuniformly sampled bandlimited signals by means of digital fractional delay filters , 2002, IEEE Trans. Signal Process..