Analog Devices Inc

ADMT4000 True Power-On Multiturn Sensor - Coming Soon

Analog Devices ADMT4000 true power-on multiturn sensors feature a true power-on multiturn counter

Image of Analog Devices ADMT4000 True Power-On Multiturn SensorAnalog Devices ADMT4000 is a magnetic turn count sensor capable of recording the number of rotations of a magnetic system even while the device is powered down. On power-up, the device can be interrogated to report the absolute position of the system. The absolute position is reported through a serial-peripheral interface (SPI). The ADMT4000 counts up to 46 turns of an external magnetic field.

The device includes three magnetic sensors, a giant magneto resistance (GMR) turn count sensor, that counts the number of rotations on the system, a GMR quadrant detecting sensor, and an anisotropic magnetoresistive (AMR) angle sensor. The AMR angle sensor is used in combination with a GMR quadrant detecting sensor to determine the absolute position of the system within 360 degrees. Combining the GMR turn count sensor output with the AMR angle sensor output enables the device to report the position of the system with a high degree of angular accuracy.

Features
  • True power-on multiturn counter
  • 46-tum magnetic sensor
  • 16k° digital output
  • Angle sensor with ±0.25“ accuracy
  • Measurement update rate 100 kSPS
  • 16 mT to 31 mT operating range
  • Internal temperature sensor
  • Under and overvoltage detection
  • SPI,1.8 V to 5 V
  • Junction temperature range: -40°C to +150°C
  • 24-pin TSSOP
  • Industrial applications
Applications
  • Rotation count detection and storage without power
  • Contactless absolute position measurement
  • Brushless DC motor control and positioning
  • Actuator control and positioning
Resources
    Image of Analog Devices ADMT4000 Block Diagram 

Product will be coming soon

发布日期： 2024-09-10