ad621-00 NVE Corp., ad621-00 Datasheet - Page 5

• Manufacturer Part Number: ad621-00
• Description: Gmr Switch? Precision Digital Sensors Gital Sensors
• Manufacturer: NVE Corp.

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
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
NVE Corporation
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Number
04
05
06
20
21
22
23
24
25
81
82
83
84
Meaning
20 Gauss OP, Standard Direction of Sensitivity
40 Gauss OP, Standard Direction of Sensitivity
80 Gauss OP, Standard Direction of Sensitivity
28 Gauss OP, Standard Direction of Sensitivity
20 Gauss OP, Cross Axis Direction of Sensitivity
40 Gauss OP, Cross Axis Direction of Sensitivity
80 Gauss OP, Cross Axis Direction of Sensitivity
28 Gauss OP, Cross Axis Direction of Sensitivity
10 Gauss OP, Cross Axis Direction of Sensitivity
20 Gauss OP, Cross Axis Direction of Sensitivity, Low Volt
40 Gauss OP, Cross Axis Direction of Sensitivity, Low Volt
80 Gauss OP, Cross Axis Direction of Sensitivity, Low Volt
28 Gauss OP, Cross Axis Direction of Sensitivity, Low Volt
(ADH Series Only; see page 38)
Web:
11409 Valley View Road, Eden Prairie, Minnesota 55344 USA
www.nve.com
GMR Switch Product Selection Guide
Email:
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11/15/02