LINEAR MAGNETIC FIELD SENSORS
KEY PERFORMANCE DATA
Sensor output vs magnetic field
Sensor output vs magnetic field
Output is repeatable in field range ±20 Oe
after being set or reset
15
60
40
20
0
1021/1022
1021/1022
Vb=5V
10
Vb=5V
5
0
Reset
-5
Set
-20
-40
-60
-10
2 sweeps
2 sweeps
-15
-20
-2
-1
0
1
2
-20
-15
-10
-5
0
5
10
15
20
Field (Oe)
Field (Oe)
Sensitivity vs temperature
Constant voltage power supply
Sensor noise vs frequency
1.3
1.2
1.1
1
1000
100
10
1021/1022
Vb=5V
1021/1022
Vb=5V
0.9
0.8
0.7
0.6
1
-50
-25
0
25
50
75
100
125
0.1
1
10
100
1000
Frequency (Hz)
Temperature (C)
Effects of set/reset pulse variation
Bridge resistance vs temperature
2µ sec pulse duration, S/R voltage >4V is recommended
1
1400
1300
1200
1100
1000
900
Vb=5V
1021/1022
All types
0.8
Vb=5V
Null Voltage (mV) (Set)
Null Voltage (mV) (Reset)
0.6
Sensitivity (mV/V/Oe) (Set)
0.4
0.2
0
Sensitivity (mV/V/Oe) (Reset)
no se reset in t
no set/reset in
this region
t/
region
0
1
2
3
4
5
-50
-25
0
25
50
75
100
125
Temperature (C)
Set/Reset Voltage (V)
4
HONEYWELL [ Honeywell ]
