MAQ850 MagAlpha MAQ850 8-Bit Angle Encoder QFN-16

MAQ850 MagAlpha MAQ850 8-Bit Angle Encoder QFN-16

The MAQ850 is an automotive-grade, easy-to- use, magnetic angle encoder with a digital output designed to replace analogic potentiometers or rotary switches.

Key Specifications

Features

• 8-Bit Resolution Absolute Angle Encoder
• Contactless Sensing for Long Life with No Wear
• Serial Peripheral Interface (SPI) for Chip Configuration
• Configurable Magnetic Field Strength Detection for Push/Pull Button Detection
• 3.3V, 12mA Supply
• Pulse-Width Modulation (PWM) Output
• -40°C to +125°C Operating Temperature Range
• Available in a QFN-16 (3mmx3mm) Package
• Available in AEC-Q100 Grade 1

Typical Application Circuit

Applications

• Rotary Knob Control Interfaces
• Manual Controls
• Encoders
• Automotive

Design Notes

• Mechanical tolerance between the magnet and the sensing element translates directly into angle error; budget it before choosing the resolution.
• Match the output interface (SPI, ABZ, PWM or analog) to the MCU timing, including the latency the control loop can tolerate.
• Offset and sensitivity drift over temperature are systematic — a single-point calibration at room temperature will not hold over the operating range.
• Differential or digital outputs survive electrically noisy motor environments far better than single-ended analog ones.

Common Questions