AS5305

AS5305 Integrated Hall IC for linear and off-axis rotary motion detection www.DataSheet4U.com AS5305 Integrated Hall IC for Linear and Off-Axis Rotary Motion Detection PRELIMINARY FACT FACT SHEET SHEET PRELIMINARY DATA SHEET 1 General Description 2 Benefits Complete system-on-chip High reliability due to non-contact sensing Extended temperature range Suitable for the use in harsh environments Robust against external magnetic stray fields The AS5305 is a single-chip IC with integrated Hall elements for measuring linear or rotary motion using multipole magnetic strips or rings. This allows the usage of the AS5305 in applications where the Sensor IC cannot be mounted at the end of a rotating device (e.g. at hollow shafts). Instead, the AS5305 is mounted off-axis underneath a multi-pole magnetized ring or strip and provides a quadrature incremental output with 40 pulses per period at speeds of up to 20m/sec. Using, for example, a 32pole-pair magnetic ring, the AS5305 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 default pole pair length is 4mm (2mm north pole / 2mm south pole). However, the chip accepts a wide range of multi-pole magnetic strips or rings with pole pair lengths between 2.26 and 5.91mm and magnetic field strengths down to 5mT. The pole pair length can be adjusted by programming. A minimum pole pair length of 2,26mm allows a resolution of 1...