2 research outputs found
8-bit 50ksps ULV SAR ADC
With the growing market of MCUs and embedded electronic powered by batteries, more
energy efficient peripherals are needed. This project presents an Analog to Digital converter
using ultra low supply voltage on transistor level. With a charge recycling spilt
capacitive DAC using set and down switching method. And a comparator with a dynamic
amplifier, resulted in a very energy efficient SAR ADC. The ADC got a samplings rate of
50k Hz and an ENOB of 7.89 bits, while only draining 75nW power from a 0.5V supply.
This results in a Walden FOM of 7.39fJ/conv.step