Low voltage digital switch for medical devices

The NVE BD927-14E nano power medical sensor GMR switches specifically designed to run at low voltages from 0.9V with a typical power consumption of 13.5µW . The BD927 sensors from NVE are manufactured with NVE’s patented spintronic GMR technology and offer a typical magnetic operate point of 15Oe. They exhibit extremely stable and precise detection of low magnetic fields the sensors are Inspected, tested, and qualified for implantable medical devices.

• Low voltage digital switch
• Magnetic operate point of 15Oe (typ.)
• Magnetic release point of 4.5Oe
• Operating voltage of 1.25V_DD (typ.)
• Quiescent current of 0.15μA (typ.) at 0.9V
• Typical power consumption 13.5μW at 0.9V
• Solid-state reliability
• Typical frequency response of 100Hz
• Precise detection of low magnetic fields
• Operating Temperature range from -40°C to +85°C
• Ultraminiature ULLGA Package

The NVE BD927-14E medical magnetic sensor covers the following applications:

• Pacemakers
• ICDs
• Insulin pumps
• Neurostimulators

The below table gives the full specifications of the NVE BD927-14E

1. 1Oe (Oersted) = 1 Gauss in air = 0.1 mT.

2. Large Magnetic Fields WILL NOT damage NVE GMR Sensors.

3. Valid from −20°C to −40°C at supply voltages less than 1V may not meet specifications.