AS5047D datasheet(7/37 Pages) AMSCO

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ams Datasheet: 2014-Jun-27 [v1-02]

AS5047D – 7

Ma g n etic C h arac teristics

Figure 7:

Magnetic Specifications

Note(s) and/or Footnote(s):

1. it is possible to operate the AS5047D below 35mT with reduced noise performance.

Figure 8:

System Specifications

Symbol

Parameter

Conditions

Min

Max

Unit

Orthogonal magnetic field

strength, normal operating

mode

Required orthogonal component of the

magnetic field strength measured at the

die's surface along a circle of 1.1mm

Symbol

Parameter

Conditions

Min

Typ

Max

Units

RES

Core resolution

bit

RES_ABI

Resolution of the ABI

interface

Programmable with register

setting (ABIRES)

2048

Steps per

revolution

INLOPT @

25°C

Non-linearity, optimum

placement of the

magnet

±0.8

Deg

INLOPT+TEMP

Non-linearity optimum

placement of the

magnet over the full

Temperature Range

±1

Deg

INLDIS+TEMP

Non-linearity @

displacement of

magnet and

temperature -40°C to

150°C

Assuming N35H Magnet

(D=8mm, H=3mm) 500um

displacement in x and y

z-distance @ 2000um

±1.2

Deg

ONL

RMS output noise

(1 sigma)

Orthogonal component for

the magnetic field within the

specified range (Bz),

NOISESET = 0

0.068

degree

ON_PWM

RMS output noise

(1 sigma) on PWM

interface

Orthogonal component for

the magnetic field within the

specified range (Bz)

0.068

degree

tdelay

System propagation

delay –core

Reading angle via SPI

110

μs

Magnetic Characteristics

System Characteristics

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