AS5045B View Datasheet(PDF) - austriamicrosystems AG

Part Name

Description

Manufacturer

AS5045B

12-Bit Programmable Magnetic Position Sensor

austriamicrosystems AG 

AS5045B

Datasheet - Electrical Characteristics

Table 4. Magnetic Input Specification

Symbol

Parameter

Condition

Min

Typ

Max

Unit

Ecc

Eccentricity

Eccentricity of magnet center to rotational axis

100

µm

Recommended magnet material and

temperature drift

NdFeB (Neodymium Iron Boron)

SmCo (Samarium Cobalt)

-0.12

%/K

-0.035

6.2 System Specifications

TAMB = -40 to +125°C, VDD5V = 3.0 to 3.6V (3V operation) VDD5V = 4.5 to 5.5V (5V operation) unless otherwise noted. Also valid for version I.

Table 5. Input Specification

Symbol

Parameter

Condition

Min

Typ

Max

Unit

RES

Resolution

0.088 deg

12

bit

INLopt

Integral non-linearity (optimum)

Maximum error with respect to the best line fit.

Centered magnet without calibration, TAMB

=25 ºC.

± 0.5 deg

INLtemp

INL

DNL

Integral non-linearity (optimum)

Integral non-linearity

Differential non-linearity

Maximum error with respect to the best line fit.

Centered magnet without calibration,

TAMB = -40 to +125ºC

Best line fit = (Errmax – Errmin) / 2

Over displacement tolerance with 6mm

diameter magnet, without calibration,

TAMB = -40 to +125ºC

12-bit, no missing codes

± 0.9 deg

± 1.4 deg

± 0.044 deg

TN

Transition noise

1 sigma

0.06

Deg

RMS

tPwrUp

tdelay

Power-up time

System propagation delay

absolute output : delay of ADC, DSP

and absolute interface

Until status bit OCF = 1

20

ms

96

µs

tdelayINC

System propagation delay

incremental output

192

µs

fS

Internal sampling rate for absolute

output

9.38 10.42 11.46 kHz

CLK/SEL

Read-out frequency

Max. clock frequency to read out serial data

1

MHz

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