Magnetic
Field
Sensors
FEATURES
ZMZ20/30 (E-Line 4-Pin) and ZMY20/30 (SOT-223-S) are extremely sensitive magnetic
sensors employing the magneto-resistive effect of thin film permalloy
Packages : E-Line 4-Pin and SOT-223-S
Output voltage proportional to the magnetic field H
y
Adjustment of sensitivity and suppression of the hysteresis by the auxiliary magnetic field
H
x
Magnetic fields vertical to the chip level are not effective
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Unit
Supply voltage ZMY20/ZMZ20
V
B
12
V
Supply voltage ZMY30/ZMZ30
V
B
15
V
Total power dissipation
P
tot
120
mW
Operating temperature range
T
amb
-40 to +150
C
Storage temperature range
T
stg
-65 to +150
C
package : SOT223S (4-Pin)
1: +V
O
2: -V
O
3: +V
B
4: -V
B
V
O
- output voltage V
B
- supply voltage
ZMY20, ZMZ20
ZMY30, ZMZ30
package : E-Line (4-Pin)
1: +V
O
2: -V
B
3: -V
O
4: +V
B
V
O
- output voltage V
B
- supply voltage
Page 2
ZMY20/30, ZMZ 20/30
ELECTRICAL CHARACTERISTICS (at T
amb
= 25 C and H
x
= 3 kA/m unless otherwise stated)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Test conditions
Bridge resistance
ZMY20/ZMZ20
ZMY30/ZMZ30
R
br
1.2
2.0
1.7
3.0
2.2
4.0
k
Output voltage range
ZMY20/ZMZ20
ZMY30/ZMZ30
V
O
/V
B
16
12
20
16
24
20
mV/V
Open circuit sensitivity
ZMY20/ZMZ20
ZMY30/ZMZ30
S
3.7
2.0
4.7
3.0
5.7
4.0
(mV/V)/(kA/m) no disturbing
field H
d
allowed
Hysteresis of output voltage
V
OH
/V
B
-
-
50
V/V
H
y
2 kA/m
Offset voltage
V
off
/V
B
-1.0
-
+1.0
mV/V
Operating frequency
f
max
0
-
1
MHz
Temperature coefficient of
offset voltage
TCV
off
-3
-
+3
(
V/V)/K
T
amb
=
-25...+125C
Temperature coefficient of
bridge resistance
TCR
br
-
0.3
-
%/K
T
amb
=
-25...+125C
Temperature coefficient of
open circuit sensitivity
V
B
= 5 V
TCS
V
-
-0.4
-
%/K
T
amb
=
-25...+125C
Temperature coefficient of
open circuit sensitivity
I
B
= 3 mA
TCS
I
-
-0.1
-
%/K
Tamb =
-25...+125C
Devices are identified by a code on the body of the device
Ordering information:
ZMY20/ZMZ20 ..... M20 ZMY30/ZMZ30 ..... M30
ZMY20TA ..... 7" reel 1,000 components per reel
ZMY20TC ..... 13" reel 4,000 components per reel
ZMY30TA ..... 7" reel 1,000 components per reel
ZMY30TC ..... 13" reel 4,000 components per reel
ZMZ20 ........... bulk in box (2,000 components per box)
ZMZ30 ........... bulk in box (2,000 components per box)
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