AS5045B-ASST datasheet(8/33 Pages) AMSCO

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AS5045B

Datasheet - Electrical Character i s t ics

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.

Ecc

Eccentricity

Eccentricity of magnet center to rotational axis

100

µm

Recommended magnet material and

temperature drift

NdFeB (Neodymium Iron Boron)

-0.12

%/K

SmCo (Samarium Cobalt)

-0.035

Table 5. Input Specification

Symbol

Parameter

Condition

Min

Typ

Max

Unit

RES

Resolution

0.088 deg

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

Integral non-linearity (optimum)

Maximum error with respect to the best line fit.

Centered magnet without calibration,

TAMB = -40 to +125ºC

± 0.9

deg

INL

Integral non-linearity

Best line fit = (Errmax – Errmin) / 2

Over displacement tolerance with 6mm

diameter magnet, without calibration,

TAMB = -40 to +125ºC

± 1.4

deg

DNL

Differential non-linearity

12-bit, no missing codes

± 0.044

deg

Transition noise

1 sigma

0.06

Deg

RMS

tPwrUp

Power-up time

Until status bit OCF = 1

tdelay

System propagation delay

absolute output : delay of ADC, DSP

and absolute interface

µs

tdelayINC

System propagation delay

incremental output

192

µs

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

MHz

Table 4. Magnetic Input Specification

Symbol

Parameter

Condition

Min

Typ

Max

Unit

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