Melexis MLX90296 Micropower Linear Hall Sensor ICs
Melexis MLX90296 Micropower Linear Hall Sensor Integrated Circuits (ICs) are designed for ultra‑low‑power magnetic sensing in portable, battery‑operated, and power‑constrained applications. These sensors integrate a Hall plate, low‑noise analog signal conditioning circuitry, and an output driver that provides a linear analog voltage proportional to the strength of the applied magnetic field. Operating from a wide supply range and drawing extremely low current, the Melexis MLX90296 devices are suitable for applications such as proximity detection, joystick position sensing, level measurement, and general-purpose magnetic field monitoring.
These ICs offer stable performance across temperature variations, factory‑trimmed sensitivity options, and built‑in offset compensation to ensure accurate, repeatable measurements. The device’s compact design, minimal power consumption, and dependable linearity make the MLX90296 a strong fit for embedded sensing in consumer electronics, industrial systems, and automotive subsystems.
Features
- Linear hall-effect sensor
- Ratiometric analog output
- µPower enables functionality
- Fast 25µs typical enable time
- Ultra-low power consumption
- 7nA when powered down
- 55µA with 1kHz external enable rate
- 5.5µA with 100Hz external enable rate
- 2mA when continuously enabled
- Bi-directional or unidirectional output
- Moving average filter product option
- Tri-state output (high Z in power down)
- Low 0.35mTpp input-referred noise
- Wide 1.65V to 3.6V operating voltage range
- Wide -40°C to +105°C temperature range
- Stable quiescent point and sensitivity over temperature and voltage
- Optional 1200ppm/°C sensitivity TC for Neodymium magnet compensation
- Pre-defined sensitivity options at 1.8V
- 3.5mV/mT (bipolar), 7mV/mT (unipolar)
- 8.1mV/mT (bipolar), 16.2mV/mT (unipolar)
- 16mV/mT (bipolar), 32mV/mT (unipolar)
- 30mV/mT (bipolar), 60mV/mT (unipolar)
- 60mV/mT (bipolar), 120mV/mT (unipolar)
- Sensitivity at 3.3V operation scales linearly
- Small footprint and low-profile DFN-4L package, (1.2mm x 1.6mm x 0.4mm) with a 0.5mm nominal lead pitch
- RoHS-compliant and Green package
Applications
- Linear position
- Trigger buttons
- Push buttons
- Liquid levels
- Weight and tilt
- Mobile/battery-powered Internet of Things (IoT)
- Joystick and rotary position
- Flow metering
Specifications
- -0.3V to 4V maximum supply voltage range, 1.8V typical nominal
- ±20mA maximum supply current range
- ±20mA maximum output current range
- 2.5mA to 2.8mA maximum average active current consumption
- ±1mA load current
- 3.6kΩ minimum load resistance
- 2nF maximum load capacitor range
- Output resistance
- 2.3Ω maximum VEN>VIH
- 100MΩ minimum VEN<VIL
- Enable (EN) pin
- 60%VDD minimum high voltage
- 30%VDD maximumlow voltage
- 0.004V/μs to 4V/μs VDD ramp rate
- 60μs maximum power-on time
- 30μs maximum enable response time
- 5.5μs to 12.5μs typical sample/update period
- 4μs maximum settling time
- 3.15mV/mT to 132mV/mT sensitivity range
- ±11mT to ±84mT minimum magnetic sensing bipolar range
- 1200ppm/°C typical sensitivity temperature coefficient
- 0.4% maximum sensitivity linearity error
- ±0.4% sensitivity symmetry error range
- ±1% sensitivity ratiometricity error range
- ±30mV output offset range
- ±10mV output quiescent voltage thermal drift range
- VOQ ratiometricity error
- ±0.1% bipolar magnetic sensing polarity
- ±0.8% unipolar magnetic sensing polarity
- 0.175mTpp to 0.35mTpp typical input-referred noise range
- Maximum ESD ratings
- ±2kV HBM (AEC-Q100-002), all pins
- ±500V CDM (AEC-Q100-011), all pins
- -40°C to +105°C ambient operating temperature range
- -40°C to +125°C junction temperature range
Block Diagram
Application Diagram
