A1308 and
A1309
Linear Hall-Effect Sensor ICs with Analog Output
Available in a Miniature, Low-Profile Surface-Mount Package
OPERATING CHARACTERISTICS (continued): Valid through TA , CBYPASS = 0.1 µF, VCC = 5 V, unless otherwise noted
Characteristics
ERROR COMPONENTS
Linearity Sensitivity Error
Symmetry Sensitivity Error
Symbol
Test Conditions
Min.
Typ.
Max.
Unit [1]
LinERR
–
–
±1.5
±1.5
–
–
%
%
SymERR
Ratiometry Quiescent Voltage
Output Error[9]
RatVOUT(Q) Across supply voltage range (relative to VCC = 5 V)
–
–
–
±1.5
±1.5
±1.5
–
–
–
%
%
%
Ratiometry Sensitivity Error[9]
Ratiometry Clamp Error[10]
DRIFT CHARACTERISTICS
RatSens
Across supply voltage range (relative to VCC = 5 V)
TA = 25°C, across supply voltage range (relative
to VCC = 5 V)
RatVOUTCLP
A1308KUA-1-T
A1308KUA-2-T
–15
–10
–10
–20
–20
–15
–15
–20
–20
–30
–30
–30
0
0
0
0
0
0
0
–
–
–
–
–
15
10
10
10
10
15
15
0
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
A1308KUA-3-T
TA = 125°C
A1308KUA-5-T
A1309KUA-9-T
A1308LLHLX-05-T
A1308LLHLX-1-T
A1308LLHLX-2-T
A1308LLHLX-3-T
A1308LLHLX-5-T
A1309LLHLX-9-T
A1309LLHLX-RP9-T
Typical Quiescent Voltage Output Drift
Across Temperature Range
∆VOUT(Q)
TA = 150°C
0
0
0
0
Sensitivity Drift Due to
Package Hysteresis[11]
∆SensPKG TA = 25°C, after temperature cycling
–
±2
–
%
11 G (gauss) = 0.1 mT (millitesla),
2 On power-up, the output of the device is held low until VCC exceeds VUVLOHI. After the device is powered, the output remains valid until VCC drops
below VUVLOLO , when the output is pulled low.
3 Determined by design and characterization, not evaluated at final test.
4 See the Characteristic Definitions section.
5 fC varies as much as approximately ±20% across the full operating ambient temperature range and process.
6 Output Referred Noise is calculated as 6 sigma (6 standard deviations) from characterization of a small sample of devices. Conversion of noise from
gauss to mV(P-P) can be done by: Noise (G) × Sensitivity (mV/G) = Noise (mV(P-P)).
7 VCLPLOW and VCLPHIGH scale with VCC due to ratiometry.
8 Parameter is tested at wafer probe only.
9 Percent change from actual value at VCC = 5 V, for a given temperature.
10 Percent change from actual value at VCC = 5 V, TA = 25°C.
11 Sensitivity drift through the life of the part, ΔSensLIFE, can have a typical error value ±3% in addition to package hysteresis effects.
Allegro MicroSystems, LLC
115 Northeast Cutoff
5
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com