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AS5304

austriamicrosystems AG
Part Number AS5304
Manufacturer austriamicrosystems AG
Description Integrated Hall ICs for Linear and Off-Axis Rotary Motion Detection
Published Mar 14, 2010
Detailed Description www.DataSheet4U.com AS5304 / AS5306 Integrated Hall ICs for Linear and Off-Axis Rotary Motion Detection PRELIMINARY DA...
Datasheet PDF File AS5304 PDF File

AS5304
AS5304


Overview
www.
DataSheet4U.
com AS5304 / AS5306 Integrated Hall ICs for Linear and Off-Axis Rotary Motion Detection PRELIMINARY DATA SHEET 1 General Description 2 • • • • Benefits Complete system-on-chip High reliability due to non-contact sensing Suitable for the use in harsh environments Robust against external magnetic stray fields The AS5304/AS5306 are single-chip IC’s with integrated Hall elements for measuring linear or rotary motion using multi-pole magnetic strips or rings.
This allows the usage of the AS5304/AS5306 in applications where the Sensor IC cannot be mounted at the end of a rotating device (e.
g.
at hollow shafts).
Instead, the AS5304/AS5306 are mounted off-axis underneath a multipole magnetized ring or strip and provides a quadrature incremental output with 40 pulses per pole period at speeds of up to 20 meters/sec (AS5304) or 12 meters/sec (AS5306).
A single index pulse is generated once for every pole pair at the Index output.
Using, for example, a 32pole-pair magnetic ring, the AS5304/AS5306 can provide a resolution of 1280 pulses/rev, which is equivalent to 5120 positions/rev or 12.
3bit.
The maximum speed at this configuration is 9375 rpm.
The pole pair length is 4mm (2mm north pole / 2mm south pole) for the AS5304, and 2.
4mm (1.
2mm north pole / 1.
2mm south pole) for the AS5306.
The chip accepts a magnetic field strength down to 5mT (peak).
Both chips are available with push-pull outputs (AS530xA) or with open drain outputs (AS530xB) .
The AS5304/AS5306 are available in a small 20-pin TSSOP package and specified for an operating ambient temperature of -40° to +125°C.
3 • • • • • • • • • Key Features High speed, up to 20m/s (AS5304) 12m/s (AS5306) Magnetic pole pair length: 4mm (AS5304) or 2.
4mm (AS5306) Resolution: 25µm (AS5304) or 15µm (AS5306) 40 pulses / 160 positions per magnetic period.
1 index pulse per pole pair Linear movement magnetic strips measurement using multi-pole Circular off-axis movement measurement using multipole magnetic rin...


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