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AB001-02 Datasheet(PDF) 4 Page - List of Unclassifed Manufacturers |
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4 / 4 page ABH Sensors RHOPOINT COMPONENTS Tel: +44 (0) 870 608 1188 Fax: +44 (0) 870 241 2255 Web: www.rhopointcomponents.com Email: sales@rhopointcomponents.com General Characteristics: Property Min Typical Max Unit Input Voltage Range <1 4 ± 12.5 4 Volts Operating Frequency DC > 1 MHz Operating Temperature Range -50 150 °C Bridge Electrical Offset -4 +4 mV/V Signal Output at Max. Field 80 mV/V Nonlinearity 4 % (unipolar) 5 Hysteresis 15 % (unipolar) 5 TCR +0.30 % / °C6 TCOI -0.28 % / °C6 TCOV -0.40 % / °C6 Off Axis Characteristic Cos β7 ESD Tolerance 400 V pin to pin HBM Notes: 1. 1 Oersted (Oe) = 1 Gauss in air. 2. See the Appendix for package dimensions and tolerances. 3. Sensors can be provided in die form by special request. 4. GMR AB Series sensors are pure ratiometric devices, meaning that they will operate properly at extremely low supply volt ages. The output signal will be proportional to the supply voltage. Maximum voltage range is limited by the power dissipation in the package and the maximum operating temperature of the sensor. 5. Unipolar operation means exposure to magnetic fields of one polarity, e.g. 0 to 30 Gauss, or –2 to –50 Gauss, but not–20 to +30 Gauss (bipolar operation). Bipolar operation will increase nonlinearity and hysteresis. 6. TCR is resistance change with temperature with no applied field. TCOI is the output change with temperature, using a constant current source to run the sensor. TCOV is the output change with temperature, using a constant voltage source to run the sensor. 7. Beta ( β) is any angle from the sensitive axis. The Figure to the left is a simulated output from an NVE Gradiometer. The output / gradient correlation shown assumes one pair of resistors is held at zero field. Note the bipolar output. Typical Gradiometer Transfer Function -50 -40 -30 -20 -10 0 10 20 30 40 50 -400 -200 0 200 400 Magnetic Field Applied to Resistors Increasing field on X resistors Increasing field on Y resistors |
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