TAS2142 (TDK Analog Output TMR Angle Sensor)

1. Official Product Name

TAS2142 is a TMR (Tunnel Magnetoresistance) analog output angle sensor launched by TDK. It belongs to the TAS214x series, also commonly referred to as TMR angle sensor / analog angle sensor.

2. Core Functions

Application: Non-contact, full-range 360° high-precision rotation angle measurement, output analog SIN/COS differential signals.

Working Principle: Based on the TMR tunnel magnetoresistance effect, it integrates two sets of orthogonal (90°) Wheatstone bridge circuits internally. It generates sine and cosine voltages with the rotation of the external magnetic field to directly reflect the rotation shaft angle.

Output: The differential amplitude is 3.0 Vpp at 5V power supply. It can be directly connected to ADC without additional amplification, featuring high signal-to-noise ratio.

Advantages: Compared with Hall / AMR sensors, it has higher sensitivity, lower temperature drift, stronger stability and longer service life; suitable for harsh environments and safety-critical scenarios.

Package: TSSOP-8 / DFN-8, compact size and easy for SMT mounting.

3. Application Scope

Automotive Electronics (Main Application)

• EPS Electric Power Steering: Motor shaft angle and steering wheel angle measurement.

• Accelerator / throttle position, brake / clutch pedal position sensing.

• BLDC motor commutation, wiper and actuator angle feedback.

• Compliant with AEC‑Q100 Grade 0, operating temperature: -40℃～+150℃, suitable for harsh automotive working conditions.

Industrial Control

• Absolute rotary encoder and servo motor position feedback.

• Rotation angle detection for robot joints and automation equipment.

• Replace traditional resolvers to simplify circuit design and reduce costs.

Other Fields

• Precision angle control for home appliances and smart home devices.

• Angle and position sensing for medical equipment and precision instruments.

4. Summary Slogan (for Website)

TAS2142 is a high-performance TMR analog angle sensor from TDK. It supports 360° dead-angle-free measurement with high output performance and stability, specially designed for high-precision and high-reliability angle detection in automotive electronics and industrial control.