Title :
A 346μm2 reference-free sensor interface for highly constrained microsystems in 28nm CMOS
Author :
Freyman, Laura ; Fick, David ; Blaauw, D. ; Sylvester, Dennis ; Alioto, Massimo
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
A 346μm2 reference-free, asynchronous VCO-based sensor interface circuit is demonstrated in 28nm LP CMOS. This design does not require high accuracy current sources, voltage sources, or low jitter timing references. It achieves wide resolution and voltage scalability, and consumes only ~1/100th the area of prior approaches. Resolution can be scaled from 2.8 to 11.7 bits and VDD from 500mV to 1.0V.
Keywords :
CMOS integrated circuits; asynchronous circuits; detector circuits; signal processing equipment; voltage-controlled oscillators; CMOS integrated circuit; asynchronous VCO; highly constrained microsystems; reference free sensor interface; sensor interface circuit; size 28 nm; voltage 500 mV to 1 V; Accuracy; Calibration; Energy resolution; Radiation detectors; Voltage measurement; Wireless communication; Wireless sensor networks;
Conference_Titel :
Solid-State Circuits Conference (A-SSCC), 2013 IEEE Asian
Conference_Location :
Singapore
Print_ISBN :
978-1-4799-0277-4
DOI :
10.1109/ASSCC.2013.6690993
