MLX90296 / Micropower linear Hall sensor IC
The MLX90296 is a family of micropower linear Hall-effect sensors (bidirectional or unidirectional) featuring a ratiometric analog output. Engineered specifically for battery-powered applications and mobile devices, this device combines fast contactless linear motion measurement with low power consumption.
The MLX90296 delivers a precise output voltage proportional to the magnetic flux density and supply voltage. Its digitally-assisted architecture ensures stability, allowing for seamless control over output saturation, offset, and noise. A moving average filter option is available to further smooth the output voltage in applications working at lower magnetic field frequencies.
MLX90296 / Micropower linear Hall sensor IC
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The MLX90296 is a family of micropower linear Hall-effect sensors (bidirectional or unidirectional) featuring a ratiometric analog output. Engineered specifically for battery-powered applications and mobile devices, this device combines fast contactless linear motion measurement with low power consumption. |
The MLX90296 delivers a precise output voltage proportional to the magnetic flux density and supply voltage. Its digitally-assisted architecture ensures stability, allowing for seamless control over output saturation, offset, and noise. A moving average filter option is available to further smooth the output voltage in applications working at lower magnetic field frequencies. |
MLX90296 Features and benefits
- Ratiometric analog output
- Bidirectional or unidirectional output
- Fast μPower enable functionality (typ. 25 μs)
- Ultra-low power consumption
- 7 nA when powered down
- 55 μA with 1 kHz external enable rate
- 5.5 μA with 100 Hz external enable rate
- 2 mA when continuously enabled
- Moving average filter product option
- Tri-state output (High Z in power down)
- Low input-referred noise of 0.35 mTpp
- Wide operating voltage range 1.65 V to 3.6 V
- Wide temperature range -40 °C to 105 °C
- Stable quiescent point and sensitivity over temperature and voltage
- Optional 1200 ppm/°C sensitivity TC for Neodymium magnet compensation
- Pre-defined sensitivity options at 1.8 V (see datasheet)
- 3.5 m ~ 120V/mT
- Bi-directional or unidirectional output
- Sensitivity at 3.3V operation scales linearly
- Package RoHS compliant DFN-4L (1.2 mm x 1.6 mm x 0.4 mm) with lead pitch of 0.5 mm nominal
MLX90296 Application examples:
- Linear Position
- Trigger buttons
- Push buttons
- Liquid levels
- Weight & Tilt
- Mobile/Battery-Powered IoT
- Joystick & Rotary Position
- Flow Metering
The device operates at a wide range of voltage levels from 1.65 V to 3.6 V and consumes 2 mA in continuous operation mode. The dedicated enable pin drops power down to a negligible 7 nA and sets, whilst putting the output in a high impedance state for easy analog multiplexing
Delivered in a micropower DFN-4L package, the MLX90296 offers the right balance of size and manufacturability. Its 1.2 x 1.6 x 0.4 mm3 form factor is ideal for modern, high-density PCBs found in hearables and smart triggers, while the standard lead pitch ensures robust, cost-effective assembly.
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