Melexis MLX90421GDC-ADC-000-SP

The MLX90421 is a monolithic magnetic position sensor IC. It consists of a Triaxis Hall magnetic front end, an analog to digital signal conditioner, a DSP for advanced signal processing and a programmable output stage driver.

The MLX90421 is sensitive to the three components of the magnetic flux density applied to the ICs (i.e. Bx, By and Bz). Programming the sensor determines which axes are used to calculate a rotation or linear position. This allows the MLX90421, with the correct magnetic design, to calculate the absolute position of any moving magnet (e.g. rotary position from 0 to 360 Degrees). It enables the design of non-contacting position sensors that are frequently required for both automotive and industrial applications.

The MLX90421 provides either a ratiometric analog or a pulse width modulated (PWM) output. Programming the sensor, after assembly into the application, increases the accuracy of the system thanks to the multi-point programmable linearization function.

• Triaxis Hall Technology
• On Chip Signal Processing for Robust Absolute Position Sensing
• OSIL ISO26262 ASIL B Safety Element out of Context
• AEC-Q100 Qualified (Grade 0)
• Programmable Measurement Range
• Programmable Linear Transfer Characteristic with up to 17 points
• Ratiometric analog or PWM output
• Packages RoHS compliant
• Single Die - SOIC-8
• Dual Die (Full Redundant) - TSSOP-16
• PCB-less DMP-4 and SMP-3
• PCB-less dual die SMP-4

• Absolute Rotary Position Sensor
• Pedal Position Sensor
• Throttle Position Sensor
• Ride Height Position Sensor
• Transmission Position Sensor
• Absolute Linear Position Sensor
• Steering Wheel Position Sensor
• Float-Level Sensor
• Non-Contacting Potentiometer