A1220, A1221,
A1222, and A1223
Chopper Stabilized Precision Hall Effect Latches
A1222 Magnetic Characteristics
Operate Point versus Temperature
150
140
130
120
(V)
110
2.6
24
100
90
80
70
-60 -40 -20 0 20 40 60 80 100 120 140 160
TA (°C)
Release Point versus Temperature
-70
-80
-90
-100
-110
-120
(V)
2.6
24
-130
-140
-150
-60 -40 -20 0 20 40 60 80 100 120 140 160
TA (°C)
Switchpoint Hysteresis versus Temperature
300
280
260
240
(V)
220
2.6
24
200
180
160
140
-60 -40 -20 0 20 40 60 80 100 120 140 160
TA (°C)
180
170
160
150
140
130
120
110
100
90
80
70
2
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
-180
2
Operate Point versus Supply Voltage
(°C)
-40
25
150
6
10
14
18
22
26
VCC (V)
Release Point versus Supply Voltage
(°C)
-40
25
150
6
10
14
18
22
26
VCC (V)
Switchpoint Hysteresis versus Supply Voltage
300
280
260
240
220
200
180
160
140
2
6
10
14
18
22
26
VCC (V)
(°C)
-40
25
150
Allegro MicroSystems, Inc.
9
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com