Digital-to-Analog Converter (DAC) Characteristics
Allowable User-Induced Differential
Offset
擝
DIFFEXT
Operation within specification
?60
G
Functional Characteristics
Operating Signal Range
10
B
DIFF
Differential signal, measured peak-to-peak;
operation within specification
30
1000 G
Minimum Operating Signal
B
DIFFOP(MIN)
Output switching (no missed edges); duty cycle
not guaranteed
20
G
Allowable Signal Amplitude Variation
B
SOA
See Functional Description section
Operational Air Gap Range
AG
Using Reference Target 60-0, duty cycle within
specification
0.5 2.75 mm
Maximum Operational Air Gap Range AG
OP(MAX)
Using Reference Target 60-0, output switching
(no missed edges); duty cycle not guaranteed
3.00 mm
Duty Cycle
11
D AG within specification
41
61
%
Consecutive Duty Cycle Variation
12
err
D
AG = 1.5 mm
?.5
%
1
Typical values are at T
A
= 25癈 and V
CC
= 12 V. Performance may vary for individual units, within the specified maximum and minimum limits.
2
1 G (gauss) = 0.1 mT (millitesla).
3
Maximum voltage must be adjusted for power dissipation and junction temperature; see Power Derating section.
4
Negative current is defined as conventional current coming out of (sourced from) the specified device terminal.
5
Power-On Time includes the time required to complete the internal automatic offset adjust after which the DAC is ready for peak acquisition.
6
See Device Operation section.
7
dI is the difference between 10% of I
CC(LOW)
and 90% of I
CC(HIGH)
, and dt is the time period between those two points.
8
C
LOAD
is the probe capacitance of the oscilloscope used to make the measurement.
9
Refer to Functional Description section for performance over input magnetic frequency.
10
AG is dependent on the available magnetic field. The available field is dependent on target geometry and material, and should be independently
characterized. The field available from the Reference Target is given in the Reference Target parameter section of the datasheet.
11
Target rotation from pin 4 to pin 1.
12
Consecutive Duty Cycle Variation represents the difference between consecutive duty cycles, D(n) D(n1); mean ?3 sigma.
OPERATING CHARACTERISTICS (continued) Valid at V
CC
and T
A
within specification; unless otherwise noted
Characteristics
Symbol
Test Conditions
Min. Typ.
1
Max. Unit
2
Miniature, Two-Wire, True Zero Speed
Differential Peak-Detecting Sensor IC
ATS682LSH
4
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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