NVE AAT001-10E

NVE AAT001-10E
The NVE AAT001-10E angle sensors use unique tunnelling magnetoresistance (TMR) elements for large signals and low power consumption. The sensor provides sine and cosine signals defining the angle of rotation, the outputs are proportional to the supply voltage of 5.5V (max) and peak-to-peak output voltages of 0.2V/V over a full rotation which are much larger than conventional sensor technologies. The AAT001-10E sensors from NVE consist of two half-bridges with a typical bridge resistance of 1.25MΩ for ultra low power applications in an ultraminiature TDFN6 package.
  • Surface-mount tunnelling magnetoresistance (TMR) angle sensor technology
  • Required applied magnetic field range from 30 Oe to 200Oe
  • Supply voltage of +5.5V
  • Peak to peak output signal 0.2V/V
  • Typical Device Resistance of 1.25MΩ
  • Microwatt power consumption
  • High output signal without amplification
  • Immune to airgap variations
  • Operates with as little as 30 Oersted field.
  • Sine and cosine and outputs
  • Operating temperature range of −40°C to +125°C
  • Ultraminiature TDFN6 package

The AAT001-10E sensor contains four sensing resistors at 90° intervals and 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 ATT001 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 AAT001-10E:

NVE AAT001-10E 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
Additional Features
  • Tunnelling Magnetoresistance (TMR) technology
  • Supply voltage +5.5V
  • Miniature TDFN6 package
  • Microwatt power consumption
  • High output signal without amplification
  • Sine and cosine and outputs
  • Immune to airgap variations
Fixed Bias Repeatability
  • ±0.5°
Magnetic Field Range
  • 30Oe to 200Oe
Operating Temperature
  • −40°C to +125°C
Output signal P-P
  • 0.2V/V
Typical Device Resistance
  • 1.25MΩ

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
PDF DocumentNVE AAT ultra-low power TMR angle sensor series datasheet
PDF DocumentCurrent measurement using GMR sensors application note
PDF Document2-wire sensor interfaces application note
PDF DocumentFurther application notes for GMR sensors
PDF DocumentPackage, tape-and-reel and pad layout specifications
PDF DocumentNVE RoHS and enviromental compliance certificate
Case Studies
PDF DocumentAnalysis of a GMR-based Plethysmograph transducer and its utility for real-time Blood pressure measurement
PDF DocumentDual-stage nanopositioning for high speed scanning probe microscopy
PDF DocumentExtending the GMR current measurement range with a counteracting magnetic field
PDF DocumentA current sensor based on the GMR effect for design and potential smart grid applications
PDF DocumentFlexible GMR sensor array for magnetic flux leakage testing of steel track ropes
PDF DocumentWireless wearable controller for upper limb neuroprosthesis
PDF DocumentUsing GMR sensors with MSP430 scan interface
PDF DocumentSafety device uses GMR sensor
PDF DocumentNondestructive inspection for diffusion bonded components
PDF DocumentGMR 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.

RoHS Compliance

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

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  • Product Code: NVE AAT001-10E
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