MA800

Active
8-Bit, Digital, Contactless Angle Sensor with Push Button Function

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Product Description

The MagAlpha MA800 is a simple-to-use, digital, magnetic sensor designed to replace analogic potentiometers or rotary switches. The sensor detects the absolute angular position of a permanent magnet attached to a rotating shaft. Since the measurement is spatially confined, the user has flexibility in terms of magnet shapes and configurations. Typically, the MA800 is used with a diametrically magnetized cylinder of 3mm to 8mm in diameter. The MA800 features programmable magnetic field strength thresholds which allow implementation of a push button function. These are readable via the register bits and also as output signals. On-chip non-volatile memory provides storage for configuration parameters including the reference zero angle position and the magnetic field detection thresholds.

Product Features

  • 8-Bit Resolution Absolute Angle Encoder
  • Contactless Sensing for Long Life with No Wear
  • SPI and SSI Serial Interface for Digital Angle Readout and Chip Configuration
  • Programmable Magnetic Field Strength Detection for Push Button Press Detection
  • 3.3V, 11mA Supply
  • -40 to +125? Operating Temperature
  • Available in a QFN-16 (3mmx3mm) Package

Additional Resources

Sensor Brochure

TBMA User Guide

Magnetic Design Tool

MagAlpha Arduino Library

MagAlpha Sample Code

AppNote: Selecting the Right Magnet

AppNote: Sense BLDC Rotor Position

AppNote: Replace Optical Encoders

Parametrics

  • PackageQFN-16 (3x3)
  • Vin (min) (V)3
  • Vin (max) (V)3.6
  • fcutoff (Hz)200
  • Latency (µs)2000
  • Isupply (mA)11.7
  • tstart-up (ms)20
  • Mps StatusActive
  • mps_Status2
  • GradeCatalog
  • Refresh Rate (kHz)1000
  • Output FormatSPI, SSI
  • Resolution (bits)8
  • Sensor PositionEnd-of-Shaft
  • Temp Range (°C)-40 to +125
  • Magnetic Field DetectionYes
  • Magnetic Field Range (mT)30-150

Evaluation Kit

GET THIS KIT

Kit details

The TBMA is a test board for the MagAlpha magnetic position sensor family. The TBMA allows users to run and test the MagAlpha sensor quickly. TBMA boards exist in two different formats: round (RD) and long (LT). In the RD format, the sensor is mounted in an end-of-shaft configuration. In the LT format, the sensor is mounted on the edge of the board and can therefore be used in both side-shaft and end-of-shaft configurations.

The TBMA is compatible with the Macom kit, offering seamless connection and operation of the MagAlpha and allowing users to evaluate MagAlpha functionalities and performances with their own set-up.

Contrary to the EVMA, the TBMA only includes the assembled board with the sensor and decoupling capacitors. It does not include connectors.

$25.00 + tax


Evaluation Kit

GET THIS KIT

Kit details

The TBMA is a test board for the MagAlpha magnetic position sensor family. The TBMA allows users to run and test the MagAlpha sensor quickly. TBMA boards exist in two different formats: round (RD) and long (LT). In the RD format, the sensor is mounted in an end-of-shaft configuration. In the LT format, the sensor is mounted on the edge of the board and can therefore be used in both side-shaft and end-of-shaft configurations.

The TBMA is compatible with the Macom kit, offering seamless connection and operation of the MagAlpha and allowing users to evaluate MagAlpha functionalities and performances with their own set-up.

Contrary to the EVMA, the TBMA only includes the assembled board with the sensor and decoupling capacitors. It does not include connectors.

$25.00 + tax


Evaluation Kit

GET THIS KIT

Kit details

The EVKT-MACOM is a communication kit for the MagAlpha magnetic position sensor family. The EVKT-MACOM offers a seamless connection and operation with MagAlpha test boards (TBMA) and evaluation kits (EVKT-KNOB). The kit contains a microcontroller motherboard, a collection of daughter boards adapted to different sensor boards and the related cables.

$75.00 + tax