Explore how an analog-to-digital converter saves power in FDSOI technology.
Today’s sensor applications show a rising demand on miniaturized autonomous sensors nodes with extreme requirements on power dissipation. One core functionality of these sensor nodes is the conversion of analog sensor signals to digital data for post processing and data communication. In this work a 11-bit Successive Approximation Register (SAR) ADC with minimized power dissipation is developed for a modern 22 nm FDSOI technology. The design takes advantage of analog body biasing feature of FDSOI technology. It achieves a power dissipation of 5 µW at a sampling rate of 100 kS/s with an INL of ± 2.8 LSB without calibration. The ADC design is flexible and easy to migrate among technology nodes due to the use of generator-based Intelligent IP technology.
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