This unique sensing principle applied to a position sensor IC results into an impressive robustness of the position signal over the mechanical (airgap, off-axis) tolerances. The rotation of this horizontal component is sensed over a wide range (up to 360º) and processed by the on-chip digital signal processing (DSP) to ultimately report the absolute angular position of the end-of-shaft magnet. 

Alternatively, through measuring individually the horizontal and vertical components, the MLX90340 is able to address linear stroke (displacement) position sensors and also absolute rotary position sensors with a through-shaft magnet. The MLX90340 reports either a ratiometric analog output or a pulse-width modulation (PWM) signal. From sensing and reporting perspectives, the MLX90340 is an extremely versatile IC for any stand-alone remote position sensor application. 

• Triaxis® Hall technology
• On-chip signal processing for robust absolute position sensing
• ASIL-A capable, Safety Element out of Context (SEooC)
• Programmable measurement range
• Programmable linear transfer characteristic (multi-points 4 or piece-wise-linear 17)
• Selectable output mode: analog (ratiometric) and PWM
• 12-bit resolution
• 10-bit thermal accuracy
• 48-bit ID number option
• Single die - SOIC-8 package RoHS compliant
• Dual die (full redundant) - TSSOP-16 package RoHS compliant
• Programmable with the PTC-04 and the PTC-04-DB-90316 daughterboard

The output transfer characteristic is fully programmable (e.g. offset, gain, clamping levels, linearity, thermal drift, filtering, range...) to match any specific requirement through end-of-line calibration. The Melexis programming unit PTC-04 communicates and calibrates the device exclusively through the connector terminals (Vdd-Vss-Out). Additionally, the MLX90340 is offered in four different factory-programmed analog versions compatible with 90º, 180º, 270º and 360º rotary end-of-shaft applications.

The MLX90340 targets and is used in a myriad of non-contacting linear and rotary position sensor applications which are frequently seen in consumer and industrial systems. The IC is available in single and dual redundant implementations to cost-effectively address the full range of applications.

The MLX90340 is pin-to-pin compatible with the previous generations of Triaxis® position sensor ICs:

• Gen I: MLX90316
• Gen I: MLX90324
• Gen I: MLX90333
• Gen II: MLX90360
• Gen II ½: MLX90365

• Absolute Rotary Position Sensor
• 
  Absolute Linear Position Sensor
• Non-Contacting Potentiometer