MLX90367EDC-ABS Datasheet, PDF (12/36 Pages) Melexis Microelectronic Systems – TriaxisÒ Position Sensor IC feat. SENT

MLX90367
Triaxis^® Position Sensor IC feat. SENT
10. MLX90367 Accuracy Specification
DC Operating Parameters at Nominal Supply Voltage (unless otherwise specified) and for T_A as specified
by the Temperature suffix (E or K or L).
Parameter
Symbol
Test Conditions
Min
ADC Resolution on the raw
signals sine and cosine⁽⁶⁾
Thermal Offset Drift #1⁽⁷⁾
at the DSP input (excl. DAC and
output stage)
Thermal Drift of Sensitivity
Mismatch⁽⁸⁾
Magnetic Angle phase error
Thermal Drift of Magnetic Angle
phase error
XY – Intrinsic Linearity Error⁽⁹⁾
XZ - Intrinsic Lin. Error⁽⁹⁾
YZ - Intrinsic Lin. Error⁽⁹⁾
Noise pk-pk⁽¹⁰⁾
RADC
Temperature suffix E
-60
Temperature suffix K
-60
Temperature suffix L
-90
XY axis – Temp. suffix E
- 0.3
XY axis – Temp.suffix K & L
- 0.5
XZ (YZ) axis – Temp. suffix E
-1
XZ (YZ) axis – Temp. suffix K & L
-1
TA = 25°C – XY axis
-0.3
TA = 25°C – XZ axis
-2
TA = 25°C – YZ axis
-2
XY axis, XZ (YZ) axis
Le T_A = 25°C – factory trim. “SMISM”
-1
Le T_A = 25°C – “k” trimmed for XZ
-2.5
Le T_A = 25°C – “k” trimmed for YZ
-2.5
FILTER = 0, 40mT
FILTER = 1 (recommended) , 30mT
FILTER = 2, 20mT
Typ
15
0.01
±1.25
±1.25
0.10
0.10
0.10
Max
+60
+60
+90
+ 0.3
+ 0.5
+1
+1
0.3
2
2
1
2.5
2.5
0.2
0.2
0.2
Units
bits
LSB15
%
Deg.
Deg.
Deg
Deg
Deg
Deg
6 _{16 bits corresponds to 15 bits + sign. Internal computation is performed using 16 bits.}
7 _{For instance, in case of a rotary position sensor application, Thermal Offset Drift #1 equal ± 60LSB15 yields to max. ± 0.3 Deg.}
angular error for the computed angular information (output of the DSP). This is only valid if k = 1. See “MLX90360 Front-End
Application Note” for more details.
8 _{For instance, in case of a rotary position sensor application, Thermal Drift of Sensitivity Mismatch equal ± 0.5% yields to max. ±}
0.15 Deg. angular error for the computed angular information (output of the DSP). See “MLX90365 Front-End Application Note”
for more details.
9 _{The Intrinsic Linearity Error refers to the IC itself (offset, sensitivity mismatch, orthogonality) taking into account an ideal rotating}
field for BX and BY. Once associated to a practical magnetic construction and the associated mechanical and magnetic
tolerances, the output linearity error increases. However, it can be improved with the multi-point end-user calibration. The intrinsic
Linearity Error for Magnetic angle ∠XZ and ∠YZ can be reduced through the programming of the k factor.
10 _{Noise pk-pk (peak-to-peak) is here intended as 6 times the Noise standard Deviation. The application diagram used is}
described in the recommended wiring. For detailed information, refer to section Filter in application mode (Section 15.4).
MLX90367
Rev 5.2
Page 12 of 36
Datasheet
Dec. 15, 15