AA004-00E Datasheet, PDF (9/16 Pages) List of Unclassifed Manufacturers – AA and AB-Series Analog Sensors

AAV Sensors
AAV Sensors
Features:
• Operates in Magnetic Saturation, 30 to 200 Gauss
• Half-Bridge or Individual Resistor Configurations
• Sine and Cosine Outputs Available
• Utilizes Spin Valve GMR Material
• Precise Detection of Magnetic Field
• Ultra-Small PLLP Package
• Cannot Be Damaged by Large External Magnetic Fields
Description:
The AAV001-11 and AAV002-11 are arrays of four GMR resistors rotated at 90-degree intervals in
the package. The AAV001-11 features independent resistors that can be wired together to form two
half-bridges, or used as independent resistors. The AAV002-11 has the bridge connections made
internally to the package. For either part, the output can be configured to represent the sine and cosine
function of the magnetic field being applied to the sensor. Each resistor is 1.5 kΩ nominal resistance
and output of each half-bridge is ratiometric with the power supply voltage. The part features NVE’s
PLLP6 housing, which is a 3.0 mm x 3.0 mm x 0.9 mm thick surface mount package.
Operation:
The sensor elements contain two magnetic layers: a pinned, or fixed-direction layer, and a movable or
free layer. The diagram below illustrates the configuration with arrows representing the two layers:
Angle Between Pinned
and Free Layers
Determines Electrical
Resistance of Sensor
- 20 -
Free Layer Aligns
with the Applied
Magnetic Field
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