A BIST scheme for on-chip ADC and DAC testing
DATE '00 Proceedings of the conference on Design, automation and test in Europe
Transformer-Coupled Loopback Test for Differential Mixed-Signal Specifications
VTS '07 Proceedings of the 25th IEEE VLSI Test Symmposium
Parallel Loopback Test of Mixed-Signal Circuits
VTS '08 Proceedings of the 26th IEEE VLSI Test Symposium
Digitally-Assisted Analog/RF Testing for Mixed-Signal SoCs
ATS '08 Proceedings of the 2008 17th Asian Test Symposium
A Built-in self-calibration scheme for pipelined ADCs
ISQED '09 Proceedings of the 2009 10th International Symposium on Quality of Electronic Design
TAC: Testing time reduction for digitally-calibrated designs
IMS3TW '09 Proceedings of the 2009 IEEE 15th International Mixed-Signals, Sensors, and Systems Test Workshop
Calibration and Testing Time Reduction Techniques for a Digitally-Calibrated Pipelined ADC
VTS '09 Proceedings of the 2009 27th IEEE VLSI Test Symposium
Prediction of analog performance parameters using fast transient testing
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Hi-index | 0.00 |
Modern mixed-signal/RF circuits with a digital calibration capability could achieve significant performance improvement through calibration. However, the calibration process often takes a long time--in the order of hundreds of milliseconds or even minutes. As testing such devices would require completion of the calibration process first, lengthy calibration would result in unacceptably long testing time. In this paper, we propose techniques to reduce the calibration time in a production testing environment, thereby reduce the overall testing time for the digitally-calibrated designs. In particular, we propose DfT modifications to accelerate the underlying adaptation algorithms and to terminate the calibration process as soon as it reaches convergence. We discuss the applicability of our techniques to general digitally-calibrated designs and illustrate the details using a case study of a digitally-calibrated pipelined ADC. Simulation results show that, for the target ADC, the proposed technique can achieve, on average, 99.5% reduction in the calibration time, which, in turn, results in a 75% reduction in production test time assuming a typical 300-millisecond testing time for testing the specifications of a calibrated ADC.