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Implementing self-testing and self-repairable analog circuits on field programmable analog array platforms

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3 Author(s)
Venkata Naresh Mudhireddy ; Southern Illinois University Carbondale, USA ; Sarvanan Ramamoorthy ; Haibo Wang

This paper presents a methodology and experiments on implementing self-healing analog circuits on a hardware platform that consists of microcontroller, flash memory, and a switched-capacitor based field programmable analog array (FPAA) device. By taking advantage of FPAA programmability and the availability of redundant resources, the microcontroller programs the FPAA circuit into different circuit configurations to perform online testing. The microcontroller also monitors the online testing data to determine if circuit faults occur. Once a circuit fault is detected, the FPAA circuit will be reconfigured to replace the faulty circuit block by a redundant resource to achieve self-healing. Experiments results are presented to show the effectiveness of the fault detection method and demonstrate the feasibility of self-healing operations.

Published in:

Quality Electronic Design (ISQED), 2010 11th International Symposium on

Date of Conference:

22-24 March 2010