GMR Switch Product Selection Guide
NVE Corporation 11409 Valley View Road, Eden Prairie, Minnesota 55344 USA
(800) 467-7141 Web: www.nve.com
Email: info@nve.com 11/15/02
In addition to defining the magnetic operate point, these two digits are used to define the
direction of sensitivity and optional low voltage operation. The GMR Switch can be
ordered in Standard Axis or Cross Axis directions of sensitivity; for definitions please see
NVE AD Series Sensitivity Direction and Pin Configuration later in this section.
NVE also makes a GMR Switch with the on-chip voltage regulator bypassed. This limits
the voltage range of the part, but allows it to operate at voltages as low as 3.0V.
The following table defines the second and third digits in the NVE AD part number:
NVE AD x xx-xx
Number Meaning
04 20 Gauss OP, Standard Direction of Sensitivity
05 40 Gauss OP, Standard Direction of Sensitivity
06 80 Gauss OP, Standard Direction of Sensitivity
20 28 Gauss OP, Standard Direction of Sensitivity
21 20 Gauss OP, Cross Axis Direction of Sensitivity
22 40 Gauss OP, Cross Axis Direction of Sensitivity
23 80 Gauss OP, Cross Axis Direction of Sensitivity
24 28 Gauss OP, Cross Axis Direction of Sensitivity
25 10 Gauss OP, Cross Axis Direction of Sensitivity
(ADH Series Only; see page 38)
81 20 Gauss OP, Cross Axis Direction of Sensitivity, Low Volt
82 40 Gauss OP, Cross Axis Direction of Sensitivity, Low Volt
83 80 Gauss OP, Cross Axis Direction of Sensitivity, Low Volt
84 28 Gauss OP, Cross Axis Direction of Sensitivity, Low Volt
Note: For parts that operate at 10 Gauss, see the following section describing the NVE
ADH Series sensors.
NVE AD Series Sensitivity Direction and Pin Configuration
Pin configuration is for the NVE AD Series GMR Switches is given in the following
diagrams. In addition, most GMR Switch parts are available with a choice of two
directions of sensitivity. “Standard” direction of sensitivity is defined as the direction
parallel to the edge of the package containing the pins. “Cross-Axis” direction of