参数资料
型号: 12217
厂商: NVE Corp/Sensor Products
文件页数: 25/145页
文件大小: 0K
描述: MAGNET 3.5MM DIA X 4MM THICK
标准包装: 10
系列: *
其它名称: Q7078272A
AB Sensors
General Characteristics:
<1
Parameter
Input Voltage Range
Operating Frequency
Operating Temperature Range
Bridge Electrical Offset
Signal Output at Max. Field
Nonlinearity
Hysteresis
TCR
TCOI
TCOV
Min
4
DC
-50
-4
Typical
120
+0.14
+0.03
-0.1
Max
±12.5
>1
125
+4
2
4
4
Unit
Volts
MHz
° C
mV/V
mV/V
% (unipolar)
% (unipolar)
6
% / ° C
6
% / ° C
6
% / ° C
5
5
Off Axis Characteristic
ESD Tolerance
Notes:
Cos β
400
7
V pin-to-pin HBM
1.
2.
3.
4.
5.
6.
7.
1 Oersted (Oe) = 1 Gauss in air.
See the Appendix for package dimensions and tolerances.
Sensors can be provided in die form by special request.
GMR A B-Series sensors are pure ratiometric devices, meaning that they will operate properly at extremely low supply
voltages . 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.
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.
TCR is resistance change with temperature with no applied field . TCOI is the output change with temperature using a
constant current source to power the sensor . TCOV is the output change with temperature using a constant voltage source
to power the sensor.
Beta ( β ) is any angle deviation from the sensitive axis.
Typical Gradiometer Transfer Function
50
40
30
20
The Figure at left is a
simulated output from an
NVE Gradiometer. The
output / gradient
correlation shown
-200
-400 Increasing field
on Y resistors
10
0
-10
-20
0
Increasing field
on X resistors
200 400
assumes one pair of
resistors is held at zero
field. Note the bipolar
output.
-30
-40
-50
Magnetic Field Applied to Resistors
- 25 -
www.nve.com phone: 952-829-9217 fax: 952-829-9189
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