AS5410

Part Number Data Sheet - Chapter AS5410 3D-Hall Encoder absolute linear Preliminary Data Sheet 1 General Description The chip can measure magnetic fields components in all three dimensions and converts the magnetic field information into absolute, position information. The AS5410 supports absolute linear position measurement applications. Only a simple 2-pole magnet is required as the magnetic field source. Using two 3D-Hall cells allows both absolute as well as differential 3D magnetic field measurement. The differential measurement makes the AS5410 ideal for use in rough industrial position sensing applications that include not only dust, dirt or moisture but also unwanted magnetic fields. All the signal conditioning, including compensation of temperature effects, magnet-to-chip gap changes as well as linearization of the output is included in the IC. The absolute position information of the magnet is directly accessible over a SPI interface and PWM output. A cycle redundancy check (CRC) allows verification of the received data. The AS5410 is available in a 14-pin TSSOP package and is qualified for an ambient temperature range from -40°C to +105°C. It operates at a supply voltage of 3.3V +/-10%. 2 Key Features ƒ up to 14-bit full scale resolution ƒ SPI and PWM output ƒ Wide magnetic input range ƒ 33 linearization points to achieve high precision ƒ Absolute linear position sensing up to 50 mm stroke ƒ Suppression of magnetic stray fields ƒ Low power operation 3 Applicati...