AS5020

6-BIT MAGNETIC ANGULAR POSITION ENCODER WITH SERIAL INTERFACE Key Features u Up to 64 positions within 360° u Non contact switching u Simple magnet as rotary encoder u Zero position programmable (independent of magnet orientation) u Synchronous Serial Interface (SSI) u Cascading is possible u Chip Select Input u Small 8-Pin SOIC (SMT) Package u Temperature Range: -40°C ...+85°C Ordering Information Part Number Package AS5020 SOIC 8 AS5020T SOIC8 Tape and Reel General Description The device provides the absolute angular position of a simple magnet that is placed under or above the device’s surface. The device includes the Hall Sensor Array, signal conditioning and post processing needed to generate a 6-bit binary code. The binary code can be easily accessed by a Synchronous Serial Interface (SSI). The angle between the device and the magnetic polarisation axis is exactly represented by one of 64 sectors (of 5.625° each) in the full 360° range. Zero-Position Programming allows one time programming of a specific zero position between the device and the magnet. The initial zero position is shown below. 60 0... initial 4 56 52 α N S 8 12 48 44 16 20 40 36 24 Functional Block Diagram 32 4mm 28 Rev. n/c Page 1/11 Feb 2001 6-Bit Magnetic Position Encoder –Data Sheet Rev.1.0 AS5020 Pin Description Pin # 1 Symbol DATA Type DO Description DATA Output of the SSI. If PD/CS=0, the measured angle data (6bit value) is serially shifted out over this pin by the CLK, starting...