AK7401 Datasheet, PDF (5/29 Pages) Asahi Kasei Microsystems – Rotary Position Sensor IC

[AK7401]
(V_DD=4.0 to 5.5V)
Parameter
EEPROM
Endurance
Ambient
Temperature in
Writing
Writing Time
8. EEPROM Characteristics
Symbol Min. Typ.
Max. Unit
Notes
Een
1000
Cycle
This parameter is
guaranteed by design.
Taw
0
+85
C
Tw
20
ms
9. Operating Conditions
Parameter
Symbol Min.
Typ.
Max. Unit
Notes
Supply Voltage
V_DD
4.0
5.0
5.5
V
Operating Ambient
Temperature
Ta
-40
-
+150
C
WARNING: Electrical and magnetic characteristics are not guaranteed when operated at or beyond
these conditions.
10. Electrical and Magnetic Characteristics
(Ta=-40 to +150C, V_DD=4.0 to 5.5V; unless otherwise specified)
Parameter
Symbol
Conditions
Min. Typ.
Max.
Unit
Magnetic Flux Density Range
Angle Detection Range
Angle Resolution
Angle Linearity Error
B_RANGE
A_RANGE
A_RES
A_INL
12bit
Ta=25°C
SPC,HP settings
20
0
-0.95
50
0.088
70
359.9
+0.95
mT
Deg.
Deg.
Deg.
Thermal Angle Drift
Caused by Sensitivity
Mismatch
Thermal Angle Drift
Caused by ADC offset
H_MXY
ADC_os
Ta=25°C basis
SPC,HP settings
-0.45
-0.18
+0.45 Deg.
+0.18 Deg.
Angle Output Noise
A_NOISE
1σ
SPC settings
+0.2 Deg.
Angle Update Period
A_CYCLE
100
110
μs
Supply Current
I_DD No output load
8
12
mA
Startup Time (Note 3)
T_START
2.0
ms
Note 3. Startup time is defined as the time from when V_DD reaches operating voltage level to when the
serial data connection is available.
014002685-E-01
-5-
2015/07