AG920-07 NVE, AG920-07 Datasheet - Page 106

• Manufacturer Part Number: AG920-07
• Description: KIT EVALUATION GT SENSOR
• Manufacturer: NVE

Specifications of AG920-07

• Sensor Type: Magnetic. GMR (Giant Magnetoresistive)
• Interface: Analog
• Embedded: No
• Utilized Ic / Part: ABL & AKL Series GT Sensors
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Supply: -
• Sensitivity: -
• Sensing Range: -
• Other names: 391-1022

Use Of GMR Magnetic Field Sensors
General Considerations
All of NVE’s GMR Magnetic Field sensors have a primary axis of sensitivity. The figure below shows
an AAxxx-02 Series GMR Magnetic Field Sensor with a cut away view of the die orientation (not to
scale) within an SOIC8 package.
The flux concentrators on the sensor die gather the magnetic flux along the axis shown and focus it at
the GMR bridge resistors in the center of the die. The sensor will have the largest output signal when
the magnetic field of interest is parallel to the flux concentrator axis. For this reason, care should be
taken when positioning the sensor to optimize performance. Although sensor position tolerance may
not be critical in gross field measurement, small positional variation can introduce undesirable output
signal errors in certain applications.
S
ENSITIVE
www.nve.com
M
AGNETIC
Axis of Sensitivity
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Flux Concentrators
A
XIS
– AA00
X
-02 S
Application Notes
ENSOR