SM Electronic Technologies offers Contactless Magnetic Rotary Encoder, Model AS5145, for accurate angular measurement over a full turn of 360°. It is a system-on-chip, combining integrated hall elements, analog front end and digital signal processing in a single device. To measure the angle, only a simple two-pole magnet, rotating over the center of the chip, is required. The magnet may be placed above or below the IC. The absolute angle measurement provides instant indication of the magnet’s angular position with a resolution of 0.0879° = 4096 positions per revolution. This digital data is available as a serial bit stream and as a PWM signal. An internal voltage regulator allows the AS5145 to operate at either 3.3 V or 5 V supplies. Key features: contactless high resolution rotational position encoding over a full turn of 360 degrees ; two digital 12 bit absolute outputs – serial interface and pulse width modulated (PWM) output ; three incremental outputs ; quadratur A/B (10-coder 12-bit) and index output signal; user programmable zero position; failure detection mode for magnet placement monitoring and loss of power supply; "red-yellow-green" indicators display placement of magnet in Z-axis; serial read-out of multiple interconnected AS5145 devices using daisy chain mode; tolerant to magnet misalignment and airgap variations; wide temperature range – -40°C to +150°C; and fully automatic AEC-Q100 qualified, grade 0, small Pb-free package – SSOP 16 (5.3 x 6.2 mm). Benefits: complete system on-chip, flexible system solution provides absolute and PWM outputs simultaneously, ideal for applications in harsh environments due to contactless positon sensing, no calibration required, and no temperature compensation necessary. Applications: industrial applications – contactless rotary position sensing, robotics; automotive applications – steering wheel position sensing, transmission gearbox encoder, headlight position control, torque sensing, valve position sensing, replacement of high end potentiometers, low jitter incremental 10-bit encoder, and high resolution incremental encoder.