high performance needs great design. Datasheet: AS5304/AS5306 Integrated Hall ICs for Linear and Off- Axis Rotary Motion Detection Please be patient while we update our brand image as austriamicrosystems and TAOS are now ams. www.ams.com AS5304 / AS5306 Integrated Hall ICs for Linear and Off-Axis Rotary Motion Detection 1 General Description 2 Key Features High speed, up to 20m/s (AS5304), 12m/s (AS5306) The AS5304/AS5306 are single-chip ICs with integrated Hall elements for measuring linear or rotary motion using multi-pole Magnetic pole pair length: 4mm (AS5304) or 2.4mm (AS5306) magnetic strips or rings. This allows the usage of the AS5304/ Resolution: 25m (AS5304) or 15m (AS5306) AS5306 in applications where the Sensor IC cannot be mounted at the end of a rotating device (e.g. at hollow shafts). Instead, the 40 pulses / 160 positions per magnetic period AS5304/AS5306 are mounted off-axis underneath a multi-pole 1 index pulse per pole pair magnetized ring or strip and provides a quadrature incremental output with 40 pulses per pole period at speeds of up to 20 meters/ Linear movement measurement using multi-pole magnetic sec (AS5304) or 12 meters/sec (AS5306). strips A single index pulse is generated once for every pole pair at the Circular off-axis movement measurement using multi-pole Index output. Using, for example, a 32pole-pair magnetic ring, the magnetic rings AS5304/AS5306 can provide a resolution of 1280 pulses/rev, which 4.5 to 5.5V operating voltage is equivalent to 5120 positions/rev or 12.3bit. The maximum speed at Magnetic field strength indicator, magnetic field alarm for end- this configuration is 9375 rpm. of-strip or missing magnet 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 3 Applications the AS5306. The chip accepts a magnetic field strength down to 5mT (peak). Both chips are available with push-pull outputs (AS530xA) The AS5304 and AS5306 are ideal for high speed linear motion and or with open drain outputs (AS530xB). The AS5304/AS5306 are off-axis rotation measurement in applications, such as electrical available in a small 20-pin TSSOP package and specified for an motors, X-Y-stages, rotation knobs, and industrial drives. operating ambient temperature of -40 to +125C. Figure 1. AS5304 / AS5306 Block Diagram AS5304 / AS5306 SIN SIN A/B A Signal Hall Array Quadrature Processing ADC & Incremental & & B Frontend Interface Channel DSP Amplifier & CO S COS Amplifier Index Index magnetic field alarm Automatic Analog Gain AO Output Control www.ams.com Revision 1.9 1 - 19