DSP-Based Testing of Analog and Mixed-Signal Circuits
DSP-Based Testing of Analog and Mixed-Signal Circuits
CONTROLLED SINE WAVE FITTING FOR ADC TEST
ITC '04 Proceedings of the International Test Conference on International Test Conference
A Computationally Efficient Method for Accurate Spectral Testing without Requiring Coherent Sampling
ITC '04 Proceedings of the International Test Conference on International Test Conference
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The paper describes the implementation of a novel Analog-to-Digital-Converter (ADC) test technique for next generation low cost massive parallel ADC testing using a Field Programmable Gate Array (FPGA) on tester load board. The goal is to test the ADC which is embedded in an automotive micro controller with only pure digital tester sources. Therefore, the analog test stimulus for the ADC is generated by using 驴驴-modulation technique off-line and analog filtering on load board. The digital test response is analyzed by a FPGA in real time by comparing the measured data with a reference signal. The modular concept of FPGA evaluation allows for quick and flexible reaction on changing production test requirements. Simply by reprogramming the FPGA with a new module there is no need of any hardware reconfigurations. Measurements with a high precision reference ADC in laboratory environment show that the method is ready for production.