학술논문
A 92dB-DR 13mW /spl Delta//spl Sigma/ Modulator for Spaceborn Fluxgate Sensors
Document Type
Conference
Author
Source
2007 IEEE International Solid-State Circuits Conference. Digest of Technical Papers Solid-State Circuits Conference, 2007. ISSCC 2007. Digest of Technical Papers. IEEE International. :388-610 Feb, 2007
Subject
Language
ISSN
0193-6530
2376-8606
2376-8606
Abstract
A 2-2 cascaded DeltaSigma modulator is adapted for near sensor digitization of the magnetic field measured by a fluxgate sensor. The chip contains three fluxgate channels (13mW each) and one voltage channel (10mW). The fluxgate channels achieve a DR of 92dB for field ranges greater than plusmn2,000nT with 10pT resolution. The chip operates up to 260krad of total ionizing dose. The chip uses 20mm 2 in a 0.35 μm CMOS process.