| Characteristic |
Conditions |
Min |
Typ |
Max |
Unit
|
| Bridge supply |
Vbridge referenced to GND |
|
5
|
12
|
Volts
|
| Bridge Resistance (2) |
Bridge current = 5mA |
800
|
1100
|
1300
|
ohm
|
| Operating Temperature |
HMC1021S, 1021Z, 1022
HMC1021D * |
-40
-40
|
|
125
300*
|
C
|
| Storage Temperature |
Unbiased |
-55
|
|
125
|
C
|
| Field Range |
Full scale (FS), total applied field |
-6
|
|
+6
|
gauss
|
| Linearity Range |
Best fit straight line
+/- 1 gauss
(at 25C)
+/- 3 gauss
+/- 6 gauss
|
|
0.05
0.4
1.6
|
0.5
2
|
%FS
|
| Three-Axis Orthoganality |
Angle from 90 degrees |
|
+/- 1
|
|
degrees
|
| Hysteresis Error |
3 sweeps across +/- 3 gauss @ 25C |
|
0.08
|
|
%FS
|
| Repeatability Error |
3 sweeps across +/- 3 gauss @ 25C |
|
0.08
|
|
%FS
|
| Bridge Offset |
Offset=(OUT+) - (OUT-), Field=0 G
after Set pulse, Vbridge=5V |
-10
|
+/-2.5
|
+10
|
mV
|
| Sensitivity |
At Vbridge=5V |
.8
|
1.0
|
1.2
|
mV/V/gauss
|
| Noise Density |
Noise at 1Hz, Vbridge=5V |
|
48
|
|
nV/ Hz
|
| Resolution |
Bandwidth=10Hz, Vbridge=5V |
|
85
|
|
ugauss
|
| Bandwidth |
Magnetic signal (low limit=DC) |
|
5
|
|
MHz
|
| OFFSET Strap |
Measured from OFFSET+ to OFFSET- |
40
|
50
|
60
|
ohm
|
| OFFSET Strap Tempco |
Ta= -40 to 125C |
|
3900 |
|
ppm/C
|
| OFFSET Field |
Field applied in sensitive direction |
4.0
|
4.6
|
6.0
|
mA/gauss
|
| Set/Reset Strap (1) |
Measured from S/R+ to S/R- |
2.0
|
3.0
|
4.0
|
ohm
|
| Set/Reset Current (1) |
2us current pulse |
1.5
|
2.0
|
4.0
|
Amp
|
| Disturbing Field |
Sensitivity starts to degrade. Use S/R
pulse to restore sensitivity. |
20
|
|
|
gauss
|
| Sensitivity Tempco |
Ta=-40 to 125C
Vbridge=5V
Ibridge=5mA |
-2800 |
-3000
-600
|
-3200
|
ppm/C
|
| Bridge Offset Tempco |
Ta= -40 to 125C
no Set/Reset
Ibridge=5mA
With Set/Reset |
|
+/-500
+/-10
|
|
ppm/C
|
| Resistance Tempco |
Vbridge=5V, -40 to 125C |
|
2500
|
|
ppm/C
|
| Cross-Axis Effect |
Cross field=1 gauss
(see AN-205)
Happlied=+/- 1 gauss |
|
+0.3
|
|
%FS
|
| Max. Exposed Field |
No perming effect on zero reading |
|
|
200
|
gauss
|
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