A1301 and A1302
Continuous-Time Ratiometric Linear Hall Effect Sensors
DEVICE CHARACTERISTICS over operating temperature range, TA, and VCC = 5 V, unless otherwise noted
Characteristic
Electrical Characteristics
Supply Voltage
Symbol
Test Conditions
Min.
Typ.
Max.
Units
VCC
ICC
Running, TJ < 165°C
Output open
4.5
–
–
6
11
–
V
mA
V
Supply Current
–
VOUT(High) ISOURCE = –1 mA, Sens = nominal
VOUT(Low) ISINK = 1 mA, Sens = nominal
BW
4.65
–
4.7
0.2
20
Output Voltage
0.25
–
V
Output Bandwidth
Power-On Time
–
kHz
VCC(min) to 0.95 VOUT; B = ±1400 G;
tPO
–
–
–
3
2
5
5
–
µs
Ω
Slew rate = 4.5 V/µs to 4.5 V/100 ns
Output Resistance
Wide Band Output Noise, rms
ROUT
ISINK ≤ 1 mA, ISOURCE ≥ –1 mA
External output low pass filter ≤ 10 kHz;
VOUTN
150
µV
Sens = nominal
Ratiometry
Quiescent Output Voltage Error
with respect to ∆VCC
∆VOUTQ(V) TA = 25°C
∆Sens(V) TA = 25°C
–
–
–
–
±3.0
±3.0
%
%
1
Magnetic Sensitivity Error with
2
respect to ∆VCC
Output
Linearity
Lin
TA = 25°C
TA = 25°C
–
–
–
–
±2.5
±3.0
%
%
Symmetry
Sym
Magnetic Characteristics
Quiescent Output Voltage
VOUTQ
B = 0 G; TA = 25°C
2.4
2.2
2.5
–
2.6
2.8
V
V
Quiescent Output Voltage over
Operating Temperature Range
VOUTQ(∆T ) B = 0 G
A
A1301; TA = 25°C
2.0
1.0
2.5
1.3
–
3.0
1.6
mV/G
mV/G
mV/G
mV/G
Magnetic Sensitivity
Sens
A1302; TA = 25°C
A1301
1.8
3.2
Magnetic Sensitivity over
Operating Temperature Range
Sens(∆T )
A
A1302
0.85
–
1.75
1Refer to equation (4) in Ratiometric section on page 4.
2Refer to equation (5) in Ratiometric section on page 4.
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
3
A1301-DS, Rev. 2
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
