SNR measurement based on linearity test for ADC BIST

Linearity and spectral performance test contributes most cost of ADC test. This paper presents a new method for testing an ADC's SNR from its linearity test data. The method does not require additional data acquisition or accurate sinusoidal stimulus. Data collected for linearity test is used to compute the input noise power and test ADC's SNR. Both simulation and experimental results show that the proposed method can estimate SNR value accurately.

[1]  Degang Chen,et al.  Cost effective signal generators for ADC BIST , 2009, 2009 IEEE International Symposium on Circuits and Systems.

[2]  J. Doernberg,et al.  Full-speed testing of A/D converters , 1984 .

[3]  Augustus J. E. M. Janssen,et al.  Estimating the integral non-linearity of A/D-converters via the frequency domain , 1999, International Test Conference 1999. Proceedings (IEEE Cat. No.99CH37034).

[4]  Filippo Attivissimo,et al.  FFT test of A/D converters to determine the integral nonlinearity , 2002, IEEE Trans. Instrum. Meas..

[5]  Ieee Std,et al.  IEEE Standard for Terminology and Test Methods for Analog-to-Digital Converters , 2011 .

[6]  Gordon W. Roberts,et al.  A BIST scheme for an SNR test of a sigma-delta ADC , 1993, Proceedings of IEEE International Test Conference - (ITC).

[7]  Degang Chen,et al.  INL based dynamic performance estimation for ADC BIST , 2010, Proceedings of 2010 IEEE International Symposium on Circuits and Systems.

[8]  Degang Chen,et al.  Accurate testing of analog-to-digital converters using low linearity signals with stimulus error identification and removal , 2005, IEEE Transactions on Instrumentation and Measurement.