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AA and AB-Series Analog Sensors

NVE offers two types of analog magnetic sensors: magnetometers, which measure magnetic field strength; and gradiometers, which measure the change, or gradient, in field strength over a distance. Popular part types are listed below (click on Part Numbers for details, pricing, or to buy online):

Magnetometers:

Part Number1
Linear Range
(|Oe
2|)
Saturation
(|Oe
|)
Sensitivity (mV/V-Oe)
Max. Non-Linearity
(% Uni.
3)
Maximum Hysteresis
(% Uni.
3)
Max. Op. Temp.
(C)
Typical
Resistance
(Ohms)
Package
Min.
Max.
Min.
Max.
1.5
10.5
15
3.0
4.2
2
4
125
5 K
SOIC8
2.0
14
20
2
3.2
2
4
125
5 K
SOIC8
5.0
35
50
0.9
1.3
2
4
125
5 K
MSOP8
5.0
35
50
0.9
1.3
2
4
125
5 K
SOIC8
10.0
70
100
0.45
0.65
2
4
125
5 K
SOIC8
5.0
35
50
0.9
1.3
2
4
125
30 K
MSOP8
5.0
35
50
0.9
1.3
2
4
125
30 K
SOIC8
0.6
3.0
6
7.5
13.0
4
15
150
2 K
SOIC8
1.5
7.5
6
3.2
4.8
4
15
150
2 K
MSOP8
1.5
10.5
15
3.0
4.2
2
2
150
5.5 K
SOIC8


Gradiometers:

Part
Number
1
Linear
Range
(|Oe2|)
Saturation
(|Oe
|)
Element
Spacing
(mm)
Max. Non-
Linearity
(% Uni.
3)
Maximum
Hysteresis
(% Uni.
3)
Max. Op.
Temp.
(C)
Typical
Resistance
(Ohms)
Package
Min.
Max.
20
200
250
0.5
2
4
125
2.5 K
SOIC8
20
200
250
0.5
2
4
125
2.5 K
MSOP8
5.0
40
70
0.5
4
15
150
1.2 K
MSOP8


Angle Sensors:

Part
Number
1
Min. P-P
Signal
(mV/V)
Min. Applied
Field (Oe)
Max. Angular
Measurement
Error
Max. Op.
Temp.
(C)
Typical
Resistance
(Ohms)
Package
130
30
3 degrees
125
1.25 M
TDFN6


Current Sensors:

Part
Number
1
Current Measurement
Range (mA)
Sensitivity
(mV/V/mA)
Max. Non-
Linearity
Max. Op.
Temp.
(C)
Typical
Resistance
(Ohms)
Package
Min.
Max.
-80
80
0.08
1%
85
7 K
TDFN6

Notes:

  1. Add "E" suffix for RoHS-compliant versions.
  2. 1 Oersted (Oe) = 1 Gauss in air.
  3. Unipolar operation means exposure to magnetic fields of one polarity, for example 0 to +30 Gauss, or -2 to -50 Gauss. Bipolar operation (for example -5 to + 10 Gauss) increases nonlinearity and hysteresis.
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