TY - GEN
T1 - A Counting Based Bridge to Digital Converter Achieving a Walden FoM of 0.048 nJ/Conv-Step
AU - Fordymacka, Annamaria
AU - Salgado, Gerardo Molina
AU - O'Connell, Ivan
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - This paper presents a counting based BDC for environmental monitoring based IoT applications, where the ramp is generated with a compact and power efficient switched capacitor DAC. This DAC is realized using a single switched capacitor resistor, eliminating the source of any mismatch. The BDC is fabricated in 65 nm CMOS and occupies an area of 0.014 mm2. It has a wide input range of 830 mV and achieves an SNR of 49.97 dB and 65.6 dB, for dynamic and static inputs respectively. The BDC consumes 30 μ A with a 0.41 ms conversion time, resulting in a Walden FoM of 0.048 n.J/Conv-step.
AB - This paper presents a counting based BDC for environmental monitoring based IoT applications, where the ramp is generated with a compact and power efficient switched capacitor DAC. This DAC is realized using a single switched capacitor resistor, eliminating the source of any mismatch. The BDC is fabricated in 65 nm CMOS and occupies an area of 0.014 mm2. It has a wide input range of 830 mV and achieves an SNR of 49.97 dB and 65.6 dB, for dynamic and static inputs respectively. The BDC consumes 30 μ A with a 0.41 ms conversion time, resulting in a Walden FoM of 0.048 n.J/Conv-step.
KW - Analog-to-digital converter
KW - bridge-to-digital converter (BDC)
KW - Dual-slope converter
KW - Single-slope converter
KW - switched capacitor DAC
KW - Wheatstone bridge (WhB)
UR - https://www.scopus.com/pages/publications/85217620088
U2 - 10.1109/ICECS61496.2024.10849223
DO - 10.1109/ICECS61496.2024.10849223
M3 - Conference proceeding
AN - SCOPUS:85217620088
T3 - Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems
BT - 2024 31st IEEE International Conference on Electronics, Circuits and Systems, ICECS 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 31st IEEE International Conference on Electronics, Circuits and Systems, ICECS 2024
Y2 - 18 November 2024 through 20 November 2024
ER -