Continuous-Time Ratiometric
Linear Hall Effect Sensor ICs
A1301 and
A1302
4
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
DEVICE CHARACTERISTICS over operating temperature range, T
A
, and V
CC
= 5 V, unless otherwise noted
Characteristic
Symbol
Test Conditions
Min. Typ. Max. Units
Electrical Characteristics
Supply Voltage
V
CC
Running, T
J
< 165癈
4.5 6 V
Supply Current
I
CC
Output open
11 mA
Output Voltage
V
OUT(High)
I
SOURCE
= 1 mA, Sens = nominal
4.65 4.7 V
V
OUT(Low)
I
SINK
= 1 mA, Sens = nominal
0.2 0.25 V
Output Bandwidth
BW
20 kHz
Power-On Time
t
PO
V
CC(min)
to 0.95 V
OUT;
B = ?400 G;
Slew rate = 4.5 V/約 to 4.5 V/100 ns
3 5 約
Output Resistance
R
OUT
I
SINK
d 1 mA, I
SOURCE
e 1 mA
2 5 ?/DIV>
Wide Band Output Noise, rms
V
OUTN
External output low pass filter d 10 kHz;
Sens = nominal
150 糣
Ratiometry
Quiescent Output Voltage Error
with respect to V
CC
1
擵
OUTQ(V)
T
A
= 25癈
?.0 %
Magnetic Sensitivity Error with
respect to V
CC
2
擲ens
(V)
T
A
= 25癈
?.0 %
Output
Linearity
Lin T
A
= 25癈
?.5 %
Symmetry
Sym T
A
= 25癈
?.0 %
Magnetic Characteristics
Quiescent Output Voltage
V
OUTQ
B = 0 G; T
A
= 25癈
2.4 2.5 2.6 V
Quiescent Output Voltage over
Operating Temperature Range
V
OUTQ(DT
A
)
B = 0 G
2.2 2.8 V
Magnetic Sensitivity
Sens
A1301; T
A
= 25癈
2.0 2.5 3.0 mV/G
A1302; T
A
= 25癈
1.0 1.3 1.6 mV/G
Magnetic Sensitivity over
Operating Temperature Range
Sens
(DT
A
)
A1301
1.8 3.2 mV/G
A1302
0.85 1.75 mV/G
1
Refer to equation (4) in Ratiometric section on page 4.
2
Refer to equation (5) in Ratiometric section on page 4.
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