| Characteristic |
Conditions |
Min |
Typ |
Max |
Unit
|
| Bridge supply (4) |
Vbridge referenced to GND |
|
5
|
12
|
Volts
|
| Bridge Resistance |
Bridge current = 10mA |
600
|
850
|
1200
|
ohm
|
| Operating Temperature (4) |
|
-40
|
|
125
|
C
|
| Storage Temperature (4) |
Unbiased |
-55
|
|
125
|
C
|
| Field Range (1) (2) (4) |
Full scale (FS), total applied field |
-2
|
|
+2
|
gauss
|
| Linearity Range (1) (2) (4) |
Best fit straight line
+/- 1 gauss
(at 25C)
+/- 2gauss
|
|
0.1
1
|
0.5
2
|
%FS
|
| Hysteresis Error (1) (2) (4) |
3 sweeps across +/- 2 gauss @ 25C |
|
0.05
|
0.01
|
%FS
|
| Repeatability Error (1) (2) (4) |
3 sweeps across +/- 2 gauss @ 25C |
|
0.05
|
0.01
|
%FS
|
S/R Repeatability (1)
S/R Repeatability (2) |
Output variation after alernate S/R pulses |
|
2
|
10
100
|
uV
|
| Bridge Offset |
Offset=(OUT+) - (OUT-), Field=0 G
after Set pulse, Vbridge=8V |
-60
|
-15
|
30
|
mV
|
| Sensitivity (1) (2) |
At Ioffset= +/- 50mA, Vbridge=5V |
2.5
|
3.2
|
4.0
|
mV/V/gauss
|
| Noise Density (4) |
Noise at 1Hz, Vbridge=5V |
|
29
|
|
nV/ Hz
|
| Resolution (4) |
Bandwidth=10Hz, Vbridge=5V |
|
27
|
|
ugauss
|
| Bandwidth (4) |
Magnetic signal (low limit=DC) |
|
5
|
|
MHz
|
| OFFSET Strap |
Measured from OFFSET+ to OFFSET- |
|
2.5
|
3.5
|
ohm
|
| OFFSET Strap Tempco (4) |
Ta= -40 to 125C |
|
3900 |
|
ppm/C
|
| OFFSET Field (4) |
Field applied in sensitive direction |
46
|
51
|
56
|
mA/gauss
|
| Set/Reset Strap |
Measured from S/R+ to S/R- |
|
1.5
|
1.8
|
ohm
|
| Set/Reset Current (1) (3) (4) |
2us current pulse |
3.0
|
3.2
|
5
|
Amp
|
| Disturbing Field (4) |
Sensitivity starts to degrade. Use S/R
pulse to restore sensitivity. |
3
|
|
|
gauss
|
| Sensitivity Tempco (4) |
Ta=-40 to 125C
Vbridge=8V
Ibridge=5mA |
-2800 |
-3000
-600
|
-3200
|
ppm/C
|
| Bridge Offset Tempco (4) |
Ta= -40 to 125C
no Set/Reset
Ibridge=5mA
With Set/Reset |
|
+/-300
+/-10
|
|
ppm/C
|
| Resistance Tempco (4) |
Vbridge=8V, -40 to 125C |
|
2500
|
|
ppm/C
|
| Cross-Axis Effect (4) |
Cross field=1 gauss
no Set/Reset
(see AN-205)
With Set/Reset |
|
+/-3
+/-0.5
|
|
%FS
|
| Max. Exposed Field (4) |
No perming effect on zero reading |
|
|
100
|
gauss
|
| Weight |
HMC1001
HMC1002 |
|
0.14
0.53
|
|
gram
|
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