High Precision Voltage Measurement System Utilizing Low-End ATE Resource and BOST
2022 IEEE 31st Asian Test Symposium (ATS)(2022)
摘要
This paper demonstrates that a 20-bit subrange ADC for' high precision voltage measurement can be implemented with standard ATE resource and BOST circuits, without special devices. Our prototype 20-bit ADC employs subranging architecture and consists of a 16bit ADC (LTC1867), a 20-bit DAC (ADC5791), Arduino and some additional circuits. Its operation has been confirmed with simulations and experiments, and effects of non-idealities for each circuit to the overall 20-bit ADC performance have been evaluated. We consider that a 16bit audio-band digitizer in an ATE system can be used as the 16bit ADC while the 20-bit DAC as well as an error amplifier (another component for the subranging ADC) can be implemented with BOST circuits.
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关键词
ADC,High Resolution,Subranging,Voltage Measurement,Mixed-Signal IC Testing,ATE,BOST
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