AS5020

Rev. n/c

Page 8/11

Feb 2001

Magnetic Input Characteristics*

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Units

Processing magnetic field

strength input range

At package surface

30

40

50

mT

Magnetic Offset

5

mT

Magnetic distortion factor

Sinusoidal magnetic field

density along 3mm

concentric circle.

2

3

%

Magnet Temperature drift

-0.035

%/K

D

Diameter of encoder magnet

3

6

mm

f

Input frequency

Both directions

30000

rpm

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

Output Characteristics

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Units

RES

Resolution

6

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

180

°

360

°

0

°

0

32

63

α

αα

α

α

αα

α

6b i t

0

1

2

5.625

°

Figure 5 Output value versus input angle