AS5046 AB austriamicrosystems, AS5046 AB Datasheet - Page 37

• Manufacturer Part Number: AS5046 AB
• Description: BOARD ADAPTER AS5046
• Manufacturer: austriamicrosystems

Specifications of AS5046 AB

• Sensor Type: Magnetic, Rotary Position
• Sensing Range: 360°
• Interface: Serial
• Voltage - Supply: 9V
• Embedded: No
• Utilized Ic / Part: AS5046
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption
• Sensitivity: -

AS5046
Data Sheet
21.2 Accuracy; Analog Output
The analog output has the same accuracy as the digital output with the addition of the nonlinearities of the DAC and
the OPAMP (+/-1LSB; see Table 23 and Table 8).
Figure 25
The maximum non-linearity error on this example is better than ±1 degree (inner circle) over a misalignment radius of
~0.7mm. For volume production, the placement tolerance of the IC within the package (±0.235mm) must also be
taken into account.
The total nonlinearity error over process tolerances, temperature and a misalignment circle radius of 0.25mm is
specified better than ±1.4 degrees.
The magnet used for this measurement was a cylindrical NdFeB (Bomatec® BMN-35H) magnet with 6mm diameter
and 2.5mm in height.
Figure 26
www.austriamicrosystems.com
-0.1
-0.2
-0.3
-0.4
-0.5
0.5
0.4
0.3
0.2
0.1
0
1
Example of Linearity Error over XY Misalignment
Example of Linearity Error over 360°
55
109 163 217 271 325 379 433 487 541 595 649 703 757 811 865 919 973
Linearity Error with Centered Magnet
6
°
5
4
3
2
1
0
Err max
Linearity Error over XY-misalignment [°]
Revision 1.12
y
Err min
-1000
-700
-400
-100
200
500
x
800
transition noise
37 – 42