AS5046-ASST austriamicrosystems, AS5046-ASST Datasheet - Page 37

• Manufacturer Part Number: AS5046-ASST
• Description: IC ENCODER PROG 12-BIT 16-SSOP
• Manufacturer: austriamicrosystems
• Type: Linear, Rotary Encoder - Programmabler

Specifications of AS5046-ASST

• Sensing Range: 45mT ~ 75mT
• Voltage - Supply: 3 V ~ 3.6 V, 4.5 V ~ 5.5 V
• Current - Supply: 21mA
• Current - Output (max): 4mA
• Output Type: Analog, Ratiometric
• Features: Programmable
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 16-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AS5046-ASSTTR

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
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-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