Datasheet

Linear Hall Effect Sensor ICs with Analog Output
A1324, A1325,
and A1326
4
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
OPERATING CHARACTERISTICS (continued) Valid throughout T
A
range, C
BYPASS
= 0.1 μF, V
CC
= 5 V; unless otherwise noted
Characteristics Symbol Test Conditions Min. Typ. Max. Unit
1
Error Components (continued)
Quiescent Voltage Output Drift
Through Temperature Range
∆V
OUT(Q)
Defined in terms of magnetic flux density, B –10 – 10 G
Linearity Sensitivity Error Lin
ERR
–1.5 – 1.5 %
Symmetry Sensitivity Error Sym
ERR
–1.5 – 1.5 %
Ratiometry Quiescent Voltage
Output Error
4
Rat
VOUT(Q)
Throughout guaranteed supply voltage range
(relative to V
CC
= 5 V)
–1.3 – 1.3 %
Ratiometry Sensitivity Error
4
Rat
Sens
Throughout guaranteed supply voltage range
(relative to V
CC
= 5 V), T
A
= 25°C and 150°C
–1.5 – 1.5 %
Throughout guaranteed supply voltage range
(relative to V
CC
= 5 V), T
A
= –40°C
–2 – 2 %
Sensitivity Drift Due to Package
Hysteresis
∆Sens
PKG
T
A
= 25°C, after temperature cycling – ±2 – %
1
1 G (gauss) = 0.1 mT (millitesla).
2
See Characteristic Definitions section.
3
f
C
varies up to approximately ±20% over the full operating ambient temperature range and process.
4
Percent change from actual value at V
CC
= 5 V, for a given temperature.