Data Sheet

LINEAR MAGNETIC FIELD SENSORS
13
Figure 20—Two-Axis Sensor With Set/Reset Circuit and Digital Interface
* R1-R4 used to trim offest
# provides 1KHz rolloff
Magnetic
SensorS
25K
LM440
2.5V
+5V
1.6
16
20
SR
IRF7105
0.2µF
4.7µF
tantalum
1K
25K
3
4
2
1
5,6
7,8
0.1µF
Set RstRst
Signal should be in Rst
state when idle
5V
Signal input
Manual Switch
23
12V
0.22µF
1
7
5
Vcc
SHDN
GND
C1-
C1+
Vout
4
C2+
C2-
0.22µF
6
+5V
8
MAX662A
+
+
4.7µF
0.1µF
4.7µF
+
1.5nF#
650
R3*
R4*
-
+
AMP04
1
8
6
5
2
3
V+
11
8,13
9
12
+5V
14
7,18
1.6
1.5nF#
650
R1*
R2*
-
+
AMP04
HMC1002
1
8
6
5
2
3
V+
4
1,6
5
2
+5V
Vref
Vref
AIN0
AIN1
Ref+
Ref-
CLK
DIN
DOUT
NCS
EOC
1
2
14
13
18
17
16
15
19
TLC2543
12 bit A/D
10
Gnd
V+
20
+5V
Serial Bus
Interface
X
Y
Figure 21—Three-Axis Low Cost Magnetic Sensor
0.1 F
Vb
S/R strap
NDC7001 or
equiv.
-
+
Vr ef
+5V
1 F
200
+5V
-
+
100K
100K
0.1uF
-
+
Magnetic
Sensors
S/R straps
0.1 F
0.1 F
4052
0X
1X
2X
3X
X
O
utp
u
t
S
e
l2
S
e
l1
S/R
A B
S/R Control
HMC1001
-
+
Vb
Vref
-
+
+
-
Vref
LM324c
Vref
LM324b
Vb
+
-
Vref
LM324a
+
-
Vref
LM324d
Vref
Magnetic
Sensors
Magnetic
Sensor
0.1µF
0.1µF
0.1µF
1µF
Output