AAV002-11

11409 Valley View Road Eden Prairie, MN 55344 Phone: (952) 829-9217 Fax: (952) 996-1600 Preliminary Data Sheet NVE AAV001-11, AAV002-11 Spin Valve GMR Bridge Sensor For Angle Detection and Magnetic Encoder Applications Sine and Cosine Outputs Available Utilizes Spin Valve GMR Material Precise Detection of Magnetic Field Ultra – Small PLLP Package Cannot Be Damaged By Large 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 1.2KOhms 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 3.0mm X 3.0mm X 0.9mm thick surface mount package. Operation – The end user must apply a magnetic field planar with the IC package. As this magnetic field varies, the resistance values of the individual resistors change and output is provided by the half bridges. An example output signal is shown in the diagram below: Sine and Cosine Output from AAV Sensors 2.58 Voltage Output (5V Supply) 2.56 2.54 2.52 2.5 2.48 2.46 2.44 2.42 0 90 180 270 360...