Power consumption is becoming more and more important in the Internet of Things (IOT). The ADC is the main power hungry in multi-sensor electronic systems and effectively reducing ADC power consumption without affecting ADC characteristics is an important. This paper is extended from the conference paper. The segmented SAR ADC presents reconfigurable 9 to 12-bit DACs with rail-to rail input range, and 3 MSB segmented capacitor arrays are used to improve linearity and lower switching energy than conventional architectures. The dual supply voltage skill separating digital and analog voltage is implemented for achieving low power consumption. In the provided 9 to 12 bits mode, this structure consumes 2.5, 2.8, 3.9 and 9.7 uW and SNDR achieve 52.3, 57.7, 63.2 and 68.6 db respectively, resulting in figure of merit (FoM) 148, 88.8, 66.3 and 88.4 fJ/conversion-step.
|Number of pages||8|
|Journal||Advances in Science, Technology and Engineering Systems|
|State||Published - 1 Jan 2018|
- SAR ADC
- Thermometer Coded