Title: Dynamic Offset Cancellation for PLL-Based Sensor Interfaces
Authors: Danneels, Hans
Van Rethy, Jelle
Vergauwen, Johan
Gielen, Georges
Issue Date: Sep-2012
Host Document: Procedia Engineering vol:47 pages:1319-1322
Conference: Eurosensors edition:XXVI location:Krakow date:9-12 September 2012
Abstract: Time-/frequency-to-digital conversion is gaining in popularity since it benefits from the improved timing
resolution in new technologies whereas voltage processing suffers from the reduced supply voltage. Sensor signals
however are small compared to other signal processing fields. Therefore, offset in the building blocks of the interface results in a significant degradation of the desired signal. While a lot of dynamic offset cancellation techniques are available for the voltage information domain (chopping, autozeroing,…), techniques for the frequency information domain are not investigated yet. This paper describes an offset compensation mechanism that overcomes this problem. Simulation results in XFAB 0.35 μm CMOS technology demonstrate reduced offset drift from around 10%
to 0.5%.
ISSN: 1877-7058
Publication status: published
KU Leuven publication type: IC
Appears in Collections:ESAT - MICAS, Microelectronics and Sensors

Files in This Item:
File Description Status SizeFormat
hdanneel2012_cal_vfull.pdfMain article Accepted 385KbAdobe PDFView/Open Request a copy

These files are only available to some KU Leuven Association staff members


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science