LINEAR MAGNETIC FIELD SENSORS
HMC1021/1022 SPECIFICATIONS
Characteristic
Conditions**
Min
Typ
5
Max
25
Unit
Volts
Ω
Bridge Supply
Vbridge referenced to GND
Bridge current = 5mA
Bridge Resistance
Operating Temperature (1)
800
1100
1300
HMC1021S, 1021Z, 1022
HMC1021D*
-55
- 55
150
300*
°C
Storage Temperature (1)
Field Range (1)
Unbiased
-55
-6
175
+6
°C
Full scale (FS), — total applied field
gauss
Best fit straight line ±1 gauss
±3 gauss
0.05
0.4
1.6
Linearity Error (1)
%FS
±6 gauss
Hysteresis Error (1)
Repeatability Error (1)
Bridge Offset
3 sweeps across ±3 gauss
3 sweeps across ±3 gauss
0.08
0.08
±2.5
%FS
%FS
mV
Offset = (OUT+) – (OUT-), Field = 0 gauss
After Set pulse, Vbridge=5V
-10
0.8
11.25
1.25
Sensitivity
S/R Current = 0.5A
1.0
48
mV/V/gauss
nV/√Hz
µgauss
MHz
Noise Density (1)
Resolution (1)
Noise at 1Hz, Vbridge=5V
Bandwidth=10Hz, Vbridge=5V
Magnetic signal (lower limit = DC)
Measured from OFFSET+ to OFFSET-
TA = -40 to 125° C
85
Bandwidth (1)
5
OFFSET Strap
38
50
60
Ω
OFFSET Strap Ω Tempco (1)
OFFSET Field (1)
Set/Reset Strap
0.39
4.6
7.7
0.5
0.37
%/° C
mA/gauss
Ω
Field applied in sensitive direction
Measured from S/R+ to S/R-
2µs current pulse, 1% duty cycle
TA = -40 to 125° C
4.0
5.5
0.5
6.0
9
Set/Reset Current
Set/Reset Ω Tempco (1)
Disturbing Field (1)
4.0
Amp
%/° C
gauss
Sensitivity starts to degrade. Use S/R
pulse to restore sensitivity.
20
Sensitivity Tempco (1)
TA = -40 to 125° C Vbridge=5V
-0.32
-0.3
-0.06
-0.28
%/° C
%/° C
%/° C
Ibridge=5mA
Bridge Offset Tempco (1)
TA = -40 to 125° C no Set/Reset
±0.05
±0.001
Vbridge=5V
with Set/Reset
Resistance Tempco (1)
Cross-Axis Effect (1)
Vbridge=5V, TA = –40 to 125° C
0.25
+0.3
Cross field=1 gauss
(see AN-205) Happlied=±1 gauss
%FS
gauss
µV
Max. Exposed Field (1)
Set/Reset (1)
No perming effect on zero reading
10000
30
S/R current ≥ 0.5 Amps
*Please reference data sheet, HTMC1021D for specifications.
(1) Not tested in production, guaranteed by characterization.
Units: 1 gauss (G) = 1 Oersted (in air), 1G = 79.58 A/m,
1G = 10E-4 Tesla, 1G = 10E5 gamma
**Tested at 25° C except otherwise stated.
3
HONEYWELL [ Honeywell ]
