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AS5020

6-BIT MAGNETIC ANGULAR POSITION ENCODER WITH SERIAL INTERFACE

austriamicrosystems AG 

6-Bit Magnetic Position Encoder –Data Sheet Rev.1.0

AS5020

Magnetic Input Characteristics*

Symbol

Bmin-max

Parameter

Processing magnetic field

strength input range

Conditions

At package surface

Offmag Magnetic Offset

DistFmag Magnetic distortion factor

Sinusoidal magnetic field

density along 3mm

concentric circle.

Td

Magnet Temperature drift

D

Diameter of encoder magnet

f

Input frequency

Both directions

*Note: Please ask for our preferred Magnet Supplier List.

Min.

30

3

Typ.

40

Max.

50

Units

mT

5

mT

2

3

%

-0.035

%/K

6

mm

30000 rpm

Output Characteristics

Symbol

RES

Parameter

Resolution

Conditions

Min.

Typ.

6

Max. Units

bits

LSB

Minimum step

5.625

deg

INL

Integral Non-Linearity

See Note 1)

0.5 LSB

DNL

Differential Non-Linearity

0.5 LSB

No missing codes guaranteed

TN

Transition-Noise

0.1

LSB

1) Linearity is defined in terms of end point fit and guaranteed by design, proved by simulated test signals

63 α 6bit

2

1

0

5 .6 2 5 °

32

0

0°

180°

360°

α

Figure 5 Output value versus input angle

Rev. n/c

Page 8/11

Feb 2001

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