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GMR Switch Precision Digital Sensors Quick Reference: GMR Switch Digital Sensors The following table lists some of NVE’s most popular GMR Switch products and their key specifications: Typical Magnetic Operate Point Part Number (Oe 1 Typical Magnetic Release Point ) (Oe 1 Output ) Type 2 Maximum Operation Temperature (°C) Package Type 3 NVE AD004-02 20 10 Sink 125 SOIC8 NVE AD005-02 40 25 Sink 125 SOIC8 NVE AD021-00 20 10 Sink 125 MSOP8 NVE AD022-00 40 25 Sink 125 MSOP8 NVE AD024-00 28 14 Sink 125 MSOP8 NVE AD124-00 28 14 Source 125 MSOP8 NVE AD621-00 20 10 NVE AD824-00 28 14 - 29 - Sink + Source+ VREG 2 Sinks + SCP www.nve.com phone: 952-829-9217 fax: 952-829-9189 125 MSOP8 125 MSOP8 NVE ADH025-00 11 5 Sink 150 MSOP8 <strong>Notes</strong>: 1. 1 Oersted (Oe) = 1 Gauss in air 2. Output Types: Sink = Up to 20 mA current sink Source = Up to 20 mA current source SCP = Short Circuit Protection available for external transistor 3. See Appendix for package dimensions Note on Availability of Products NVE keeps about 25 of the most popular types of GMR Switch products in stock at our manufacturing facility. However, because there are over 100 different varieties of GMR Switch parts, some part numbers may require a six to eight week lead time before production quantities are available. Please contact NVE for further information.
GMR Switch Product Selection Guide GMR Switch Precision Digital Sensors NVE’s GMR Switch is available in a wide range of packaging, output type, and magnetic trigger field varieties. The purpose of this selection guide is to explain the different output and packaging options, as well as to provide information on how to specify the correct part number when ordering. All NVE GMR Switch product part numbers follow the same general form. As shown below, the first “x” in the part number specifies output type and available voltage regulator output, the next two x’s specify trigger field and direction of sensitivity, and the last pair specify the package type. The following sections define these variations in detail. Output Type and Available Regulator The first numeric digit of the part number NVE ADxxx-xx specifies the output type, and the availability of a regulated voltage supply on a separate pin. The following four output types are available: 20 mA Current Sink 20 mA Current Source Separate 20 mA Sink and Source Two Separate 20 mA Sinks All outputs turn ON when the magnetic field is applied. An output that turns OFF when the magnetic field is applied is available as a custom product; please consult NVE. Some of NVE’s GMR Switches also feature a regulated supply voltage available external to the part on a separate pin. This regulator provides a 5.8V reference capable of supplying up to 3 mA of drive current. This regulated output may be used to run an LED or other low power device. In addition to these options, NVE recently introduced a GMR Switch that has provisions for shutting down an external power transistor in case a short circuit is detected. This is useful in applications where the finished sensor assembly must be “bulletproof,” or immune to improper connection. - 30 - www.nve.com phone: 952-829-9217 fax: 952-829-9189
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GMR Material Physics - 80 - www.nve
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GMR Materials Types Manufactured by
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GMR Magnetic Field Sensors (Magneto
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GMR Magnetic Gradient Sensors (Grad
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The equation for the amplified volt
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Use Of GMR Magnetic Field Sensors -
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Package Drawing - TDFN6 2.5 mm x 2.
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Definitions and Conversion Factors
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Conversion Factors To Convert Into
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SB-00-014 11409 Valley View Road Ed
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