NVE AAT003-10E

  • NVE

Product Features

  • Tunnelling Magnetoresistance (TMR) technology
  • Supply voltage +5.5V
  • Miniature TDFN6 package
  • Low power consumption
  • High output signal without amplification
  • Sine and cosine and outputs
  • Direct microcontroller interfacing.
  • Temperature range −40°C to +125°C

Applications

  • Compliant

Description

NVE’s AAT003-10E angle sensors use unique Tunnelling Magnetoresistance (TMR) elements for large signals and low power consumption. This sensor is a low-resistance version with a typical bridge resistance of 40KΩ, the lower device resistance reduces Johnson noise, and is also ideal for direct microcontroller interfaces because the lower output impedance can quickly charge microcontroller sample-and-hold input stages. The sensor provides sine and cosine signals defining the angle of rotation. Outputs are proportional to the supply voltage and peak-to-peak output voltages are much larger than conventional sensor technologies.

  • Surface-mount tunnelling magnetoresistance (TMR) angle sensor technology
  • Tunnelling Magnetoresistance (TMR) technology
  • Supply voltage of +5.5V
  • High output signal without amplification
  • Immune to airgap variations
  • Operates with as little as 30 Oersted field.
  • Sine and cosine and outputs
  • Temperature range −40°C to +125°C
  • Ultraminiature TDFN6 packages

 

The AAT003-10E sensor contains four sensing resistors at 90° intervals. The resistors are connected as two half-bridges providing the sine and cosine voltage outputs. For each half bridge the resistance of one element increases and the other decreases as the field rotates, thus the bridge resistance, device resistance and output impedances remain constant with rotation

Typical applications for the ATT series include:

  • Battery powered applications
  • Knob position sensors, rotary encoders
  • Automotive rotary position sensors
  • Motor shaft position sensors

 

The below table gives the full specifications of the NVE AAT angle sensor series including the AAT003-10E:

NVE AAT003-10E Specifications
1. Large magnetic fields CANNOT damage NVE sensors.

2. “Fixed Bias” means a fixed airgap between the bias magnet and sensor so the magnetic field at the sensor is constant.

3. “Variable Bias” means the magnetic field strength at the sensor can vary across the specification range.

4. Maximum deviation of either output from an ideal sine wave.

 

 

Specifications

Weight 0.02500 kg
Dimensions 2.50 × 2.50 × 0.80 mm
Additional Features

Tunnelling Magnetoresistance (TMR) technologySupply voltage +5.5VMiniature TDFN6 packageLow power consumption High output signal without amplificationSine and cosine and outputsDirect microcontroller

Temperature Range (°C)

Series / Model

Magnetic Field Range

,

Typical Resistance

Repeatability

Output

RoHS Compliant Product – NVE

This product is available fully compliant to the RoHS EU directive 2011/65/EU.

NVE AAT003 Series Technical Library

We are pleased to provide you with a range of additional content including videos, product datasheets, case studies, white papers and application notes for your reference. Please see below for the latest content available:

 

 

DOCUMENTATION
NVE AAT003 low resistance TMR angle sensor series datasheet
Current measurement using GMR sensors application note
2-wire sensor interfaces application note
Further application notes for GMR sensors
Package, tape-and-reel and pad layout specifications
NVE RoHS and enviromental compliance certificate
Case Studies
Analysis of a GMR-based Plethysmograph transducer and its utility for real-time Blood pressure measurement
Dual-stage nanopositioning for high speed scanning probe microscopy
Extending the GMR current measurement range with a counteracting magnetic field
A current sensor based on the GMR effect for design and potential smart grid applications
Flexible GMR sensor array for magnetic flux leakage testing of steel track ropes
Wireless wearable controller for upper limb neuroprosthesis
Using GMR sensors with MSP430 scan interface
Safety device uses GMR sensor
Nondestructive inspection for diffusion bonded components
GMR sensors manage batteries

 

 

 

VIDEOS
Angle Sensor on a Lego Car

NVE put an angle sensor on a remote-control Lego car to demonstrate the sensor's awesome precision and airgap tolerance. The AAT series sensor has a precision better than one degree, which is about 1/64" for the 2" diameter Lego wheels. AAT Sensors are "awesome" for motion control because they allow wide magnet airgaps for simple positioning, large output signals and low output impedance allow direct interface to microcontrollers like Arduinos. They are absolute rather than relative sensors, and they're small.

Angle Sensor Live Demonstration

NVE's Jay Brown demonstrates that AAT-Series TMR sensors are extremely small, sensitive, and low power.

Arduino Angle Sensor Demo (short version)

The AAT003 non-contact angle sensor in a stepper motor servo system. This demonstration shows the unique capabilities of AAT-Series tunneling magnetoresistance sensors. NVE use a simple Arduino controller with a modified clock as a position indicator.

VIDEOS
Angle Sensor on a Lego Car

NVE put an angle sensor on a remote-control Lego car to demonstrate the sensor's awesome precision and airgap tolerance. The AAT series sensor has a precision better than one degree, which is about 1/64" for the 2" diameter Lego wheels. AAT Sensors are "awesome" for motion control because they allow wide magnet airgaps for simple positioning, large output signals and low output impedance allow direct interface to microcontrollers like Arduinos. They are absolute rather than relative sensors, and they're small.

Angle Sensor Live Demonstration

NVE's Jay Brown demonstrates that AAT-Series TMR sensors are extremely small, sensitive, and low power.

Arduino Angle Sensor Demo (short version)

The AAT003 non-contact angle sensor in a stepper motor servo system. This demonstration shows the unique capabilities of AAT-Series tunneling magnetoresistance sensors. NVE use a simple Arduino controller with a modified clock as a position indicator.

NVE AAT003-10E

Quantity
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