Analog Sensors
NVE analog GMR and TMR sensors have high sensitivity, excellent temperature stability, low power consumption, and small size. Their unmatched versatility make them an excellent choice for a wide range of analog sensing applications from rugged industrial and automotive position, speed, and current sensors to low voltage, battery-powered sensors for handheld instrumentation, and implantable medical devices.
All sensors use a temperature compensating Wheatstone bridge configuration. Five analog product families are available: the low tempco AA-Series; the high-sensitivity AAH-Series; the low-hysteresis AAL-Series; high-output ALT-Series, and AAT-Series angle sensors. Their key characteristics are summarized in the following table:
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AB-Series sensors are differential devices, or gradiometers. Two families of AB
sensors are offered: the standard AB-Series and the high-sensitivity ABH-Series.
They have operational characteristics similar to the AA and AAH sensors described
above, but with the bipolar linear output characteristics of a differential sensor.
AA-Series GMR Analog Sensor Demonstration
Ultralow
Temperature Coefficient Sensing Current Through a Circuit Board Trace
Our analog sensors include magnetometers, gradiometers, angle sensors, and current sensors:
| Magnetometers | ||||||||||
| Part Number |
Linear Range
(|mT|) |
Saturation (|mT|) |
Typical
Sensitivity (mV/V/mT) |
Max. Non-Linearity (% Uni.) |
Maximum Hysteresis (% Uni.) |
Typ. Tempco (%/°C; const V) |
Max. Op. Temp. (°C) |
Typical Bridge Resistance |
Package | |
|
Min.
|
Max.
|
|||||||||
|
0.15
|
1.05
|
1.5
|
36
|
2
|
4
|
-0.05 |
125
|
5 kΩ
|
SOIC8
|
|
|
0.2
|
1.4
|
2
|
26
|
SOIC8
|
||||||
|
0.05
|
3.5
|
5
|
10
|
MSOP8
|
||||||
|
0.5
|
3.5
|
5
|
10
|
SOIC8
|
||||||
|
0.5
|
3.5
|
5
|
10
|
DFN6
|
||||||
|
1
|
7
|
10
|
5
|
MSOP8
|
||||||
|
1
|
7
|
10
|
5
|
SOIC8
|
||||||
|
0.5
|
3.5
|
5
|
10
|
30 kΩ
|
MSOP8
|
|||||
|
0.5
|
3.5
|
5
|
10
|
SOIC8
|
||||||
|
5
|
45
|
50
|
1
|
5 kΩ
|
MSOP8
|
|||||
|
0.06
|
0.3
|
0.6
|
150
|
4
|
15
|
-0.4 |
150
|
2 kΩ
|
SOIC8
|
|
|
0.15
|
0.75
|
1.5
|
40
|
2 kΩ
|
MSOP8
|
|||||
|
0.15
|
0.75
|
1.5
|
35
|
2
|
2
|
125
|
5.5 kΩ
|
SOIC8
|
||
|
0.15
|
0.75
|
1.5
|
35
|
2.2 kΩ
|
DFN6
|
|||||
| AAL024-10 |
0.15
|
1.05
|
1.5
|
35
|
2.2 kΩ
|
DFN6
|
||||
| ALT022-20 |
-0.25
|
+0.25
|
0.5
|
200
|
3
|
10
|
0.1 |
125
|
20 kΩ
|
WLCSP
|
| ALT002-14 |
-0.25
|
+0.25
|
0.5
|
200
|
DFN4
|
|||||
| ALT021-10 |
-0.25
|
+0.25
|
0.5
|
500
|
DFN6
|
|||||
| ALT023-10 |
-1
|
+1
|
1.5
|
200
|
0.1
|
5
|
||||
| ALT024-10 |
-2
|
+2
|
3
|
120
|
1
|
|||||
| ALT025-10 |
-10
|
+10
|
30
|
20
|
||||||
|
50
|
800
|
1500
|
0.05
|
2
|
4
|
-0.21 |
85
|
1 MΩ
|
DFN4
|
|
Click on a magnetometer part type for more information:
| Part Number |
Linear Range (|mT|) | Saturation (|mT|) |
Element Spacing (mm) |
Max. Non- Linearity (% Uni.) |
Maximum Hysteresis (% Uni.) |
Max.
Op. Temp. (°C) |
Typical Resistance |
Package | |
|
Min.
|
Max.
|
||||||||
|
2
|
20
|
25
|
0.5
|
2
|
4
|
125
|
2.5 kΩ
|
SOIC8
|
|
|
2
|
20
|
25
|
0.5
|
2
|
4
|
125
|
2.5 kΩ
|
MSOP8
|
|
|
0.5
|
4
|
7
|
0.5
|
4
|
15
|
150
|
1.2 kΩ
|
MSOP8
|
|
| Part Number |
Current
Measurement Range (mA) |
Sensitivity (mV/V/mA) |
Max. Non- Linearity |
Max. Op. Temp. (°C) |
Typical Resistance |
Package | |
|
Min.
|
Max.
|
||||||
|
-500
|
500
|
0.04
|
1%
|
150
|
7 kΩ
|
TDFN6
|
|
Sensor Reference Designs
Sensor output vs. magnet distance calculator
GMR
analog sensor datasheet ALT-Series
TMR analog sensor datasheet AAV-Series
current sensor datasheet AAT001/AAT009
angle sensor datasheet