1Department of Neuroscience, Washington University Medical School, Saint Louis, MO, USA; 2FMRIB Centre, Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK; 3Center for Magnetic Resonance Research (CMRR), University of Minnesota, Minneapolis, MN, USA; 4Department of Psychiatry, Washington University Medical School, Saint Louis, MO; 5Translati...

Mikko Johannes Nissi, Ferenc Toth, Jinjin Zhang, Sebastian Schmitter, Michael Benson, Bruce Hammer, Cathy Carlson, and Jutta Maria Ellermann CMRR and Department of Radiology, University of Minnesota, Minneapolis, MN, United States, Department of Orthopaedic Surgery, University of Minnesota, Minneapolis, MN, United States, Department of Veterinary Population Medicine, College of Veterinary Medic...

D. Idiyatullin, C. Corum, S. Moeller, H. S. Prasad, M. Garwood, and D. R. Nixdorf CMRR, University of Minnesota, Minneapolis, MN, United States, Division of Oral Pathology in the Department of Diagnostic & Biological Sciences, University of Minnesota, Minneapolis, MN, United States, Division of TMD & Orofacial Pain and Department of Neurology, University of Minnesota, Minneapolis, MN, United St...

Magnetic recording currently is the major data storage technology. Conventional magnetic media implement continuous magnetic layers consisting of microscopic grains. Such media have constraints of thermal instability due to the superparamagnetic effect, which occurs when the magnetic grains become too small. The superparamagnetic effect may set the fundamental limit of about 0.5Tbit/inon achiev...

In current HDD’s with disks covered with a continuous magnetic coating, a bit can be written anywhere on the disk. Of course, there is some sanity in the placement of these bits. This sanity is enforced by servo markers and sector headers which define the positions of tracks and sectors. In writing, once the position of a sector and a track are found, the placement of the bits on this track is ...

INTRODUCTION This application note describes a systematic approach to calculating the overall error in an instrumentation amplifier (in amp) application. We will begin by describing the primary sources of error (e.g., offset voltage, CMRR, etc.) in an in amp. Then, using data sheet specifications and practical examples, we will compare the accuracy of various in amp solutions (e.g., discrete vs...

In this paper a novel common mode separation technique for implementing fully differential current buffers is introduced.  Using the proposed method two high CMRR (Common Mode Rejection Ratio) and high PSRR (Power Supply Rejection Ratio) fully differential current buffers in BIPOLAR and CMOS technologies are implemented.   Simulation results by HSPICE using 0.18μm TSMC process for CMOS based st...