Modeling of giant magnetoresistance isolator for high speed digital data transmission utilizing spin valves

Abstract

Low resistance spin-valve-type current-perpendicular-to-plane giant magnetoresistance with Co 75 Fe 25Effects of grain cluster size on coercivity and giant magnetoresistance of NiFe/Cu/CoFe/Cu/NiFe pseudo spin valves Appl.

A Small Footprint Digital Isolator Based on CMOS Integrated Hall-Effect Sensor

“…For instance, contactless current sensors (current transducers) replaces shunt based sensing with no drop out voltage and achieve a remarkable V iso [2]. Magneto resistors, have also been employed as digital isolators [3].…”

“…Giant magnetoresistance (GMR) or tunneling magnetoresistance (TMR) technology are the magnetic sensors that have been studied for digital isolators implementation [3] and commercialized through NVE's patented IsoLoop spintronic technology. Standard CMOS processes do not include deposition of ferrite/magnetic material for MR type digital isolators.…”

4-port digital isolator based on on-chip transformer

“…Digital isolators fabricated in complementary metallic oxide semiconductor (CMOS) process technology are gaining favor from designers because of their significant advantages in terms of speed (100-150 Mbps), power dissipation, propagation delays, and more [3,4] . Digital isolators using magnetic coupling [5][6][7] , capacitive coupling [8,9] and giant magneto resistive (GMR) [10] methods have been reported in the academic literature and commercially. They are challenging the optocouplers.…”