AMR3108A AMR180º/360º Magnetic Rotary Encoder Sensor
  • 3105a英
  • 3105a英1
Part Number: AMR3108A
Compatible Part Number: —
Type: Biaxial AMR Angle Sensor
Supply Voltage(V): 3.3~5 V
Angle Range(°): 180°
Resistance(kΩ): /
OutputPeak(mV/V): /
Field Range(Gs): >200 Gs
Angle Accuracy: ±0.5°
Output Interface: SPI/ABZ/UVW/PWM/Analog
Package: TSSOP16L
Lead Time: In stock

General Description:The AMR3108A is a contactless, high-precision,and high-speed magnetic rotary encoder sensor,which integrated with anisotropic magnetoresistance(AMR) sensors and CMOS digital signal processing circuitry.

The AMR3108A senses the single pole-pair magnet rotation above the chip by AMR sensors, collects the rotating magnetic field signal, transmits it to the digital processing unit, calculates the rotation angle and outputs 12-bit absolute position signals. 

The signal period of AMR3108A is 180° rotation angle. Using the reserved inverted switch interface, it can be extended to the detection of 360° rotation angle. 

AMR3108A outputs 12-bit absolute position signal through SPI communication protocol in a 180° rotation period. At the same time, it is able to output A/B phase programmable incremental position signal with 1 to 1024 pulse and programmable zero-point (Z phase) signal. AMR3108AP also provides inverted UVW output, analog and PWM signals, with rotational speed up to 20,000 RPM.

Features and Benefits:(1)Anisotropic magnetoresistance (AMR) technology;(2)Contactless measurement;(3)Available in SPI, ABZ differential, UVW, Analog and PWM interfaces;(4)12-bit absolute position output in SPI mode;(5)Programmable A/B interpolation factors: ×1 to ×1024;(6)Programmable Z pulse width in 1LSB/2LSB/4LSB/90°;(7)Programmable inverted UVW output resolution in 1 to 16 pole-pair;(8)Programmable analog clamping voltage and PWM frequency;(9)Programmable zero position;(10)Angular repeatability < ±0.1°;(11)Speeds up to 20,000 RPM;(12)Adaptive supply voltage: 3.3 V to 5 V.

Applications:(1)Contactless angular position measurement;(2)Brushless motor position sensing;(3)Rotary speed sensing;(4)Stepper motor.

The information provided herein by MultiDimension Technology Co., Ltd. (MDT) is believed to be accurate and reliable. The technology disclosed by MDT does not infringe the patents of other companies and owns independent intellectual property rights. We reserve the right to change the specification of products and/or the information given herein at any time to improve product quality, reliability and functionality. MDT does not assume any liability arising out of the application and use of its products.

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