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ADH025-00

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
GMR Switch Precision Digital Sensors
GMR Switch™ Precision Digital Sensors gital Sensors
When GMR sensor elements are combined with digital on-board signal processing
electronics, the result is the GMR Switch. The GMR Switch offers unmatched precision
and flexibility in magnetic field sensing.
When GMR sensor elements are combined with digital on-board signal processing
electronics, the result is the GMR Switch. The GMR Switch offers unmatched precision
and flexibility in magnetic field sensing.
The GMR Switch will accurately and reliably sense magnetic fields with less error than
any other magnetic sensor on the market today. In addition, there is little shift in the
magnetic field operate point of the GMR Switch over voltage and temperature extremes.
This gives NVE’s customer the ability to make a high precision, high tolerance magnetic
sensing assembly.
The GMR Switch will accurately and reliably sense magnetic fields with less error than
any other magnetic sensor on the market today. In addition, there is little shift in the
magnetic field operate point of the GMR Switch over voltage and temperature extremes.
This gives NVE’s customer the ability to make a high precision, high tolerance magnetic
sensing assembly.
The GMR switch can operate over a wide range of magnetic fields, and is the most
precise magnetic sensor on the market. It is the clear choice when a digital output signal
is required of a magnetic sensor.
The GMR switch can operate over a wide range of magnetic fields, and is the most
precise magnetic sensor on the market. It is the clear choice when a digital output signal
is required of a magnetic sensor.
Magnetic
Operate Point
(Gauss)
50
150
Operate Point Error Band for Typical Magnetic Sensors
(4.5V to 30V, -40C to +125C)
Allegro 3141LLT
(Hall Effect)
Honeywell SS441A
(Hall Effect)
Honeywell 2SSP
(AMR)
NVE AD023-00
(GMR)
NVE AD021-00
(GMR)
NVE AD022-00
(GMR)
The GMR Switch Holds Tighter
Operate Point Specifications
Than Any Competing Product!
200
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
GMR Switch Precision Digital Sensors
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
Quick Reference: GMR Switch Digital Sensors
The following table lists some of NVE’s most popular GMR Switch products and their
key specifications:
Part Number Typical
Magnetic
Operate
Point
(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 Sink +
Source
125 MSOP8
NVE AD824-00 28 18 2 Sinks +
SCP
125 MSOP8
NVE ADH025-00 11 5 Sink 150 MSOP8
Notes:
1. 1 Oersted (Oe) = 1 Gauss in air
2. Output Types:
Sink = Up to 20mA current sink
Source = Up to 20mA 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 6 to 8
week lead time before production quantities are available. Please contact NVE
for further information.
GMR Switch Product Selection Guide
GMR Switch Product Selection Guide
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.
NVE ADxxx-xx
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
Output Type and
Available Regulator
Package Type
Trigger Field, Direction of
Sensitivit
y
, Low Volta
g
e O
p
eration
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.
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ADH025-00

Mfr. #:
Buy ADH025-00
Manufacturer:
Description:
MAGNETIC SWITCH OMNIPOLAR 8MSOP
Lifecycle:
New from this manufacturer.
Delivery:
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