ba010-01 NVE Corp., ba010-01 Datasheet - Page 2

• Manufacturer Part Number: ba010-01
• Description: Ba010-01 Gmr Medical Sensors
• Manufacturer: NVE Corp.

Magnetic, Resistance, and Size Characteristics:
Part
Number
BA010-01
Electrical and Temperature Characteristics:
Property
Input Voltage Range
Operating Frequency
Operating Temperature Range
Bridge Electrical Offset
Signal Output at Max. Field
Nonlinearity
Hysteresis
TCR
TCOI
TCOV
Off Axis Characteristic
ESD Tolerance
Notes:
1.
2.
3.
4.
5.
6.
-0.2
-0.4
1.2
0.8
0.6
0.4
0.2
1
0
-80
1 Oersted (Oe) = 1 Gauss in air.
Sensors can be provided in different sensitivities and geometries by special request.
GMR BA 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
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. See the graphs below.
Beta (β) is any angle from the sensitive axis.
-60
Saturation
Field (Oe
-40
15
Constant Voltage Supply
-20
1
Applied Field (Oe)
)
0
Min
Linear Range
1.5
20
(|Oe
40
1
Max
|)
10.5
60
Min
<1
DC
-50
Min
-4
80
(mV/V-Oe
Sensitivity
3.0
-50°C
0°C
+50°C
+100°C
4
100
Max
4.2
-0.2
-0.4
1.2
0.8
0.6
0.4
0.2
1
1
0
)
-80
Typical
Cos β
+0.14
+0.03
-0.1
400
60
Resistance
-60
5K ± 20%
(Ohms)
7
-40
Constant Current Supply
-20
Applied Field (Oe)
± 25
Max
125
> 1
+4
2
4
0
436x3370
Die Size
4
(µm)
20
Medical Sensors
40
3
% (unipolar)
% (unipolar)
V pin to pin
60
% / °C
% / °C
% / °C
Thickness
mV/V
mV/V
Volts
HBM
MHz
Unit
200 ± 25
°C
(µm)
80
Die
-50°C
0°C
+50°C
+100°C
6
6
6
to -50
100
5
5