Broadcom AEAT-8811 Programmable Angular Magnetic Encoders

Broadcom AEAT-8811 Programmable Angular Magnetic Encoders are available in 10, 12, 14, or 16 bits of absolute resolution with no offset calibration. These magnetic encoder ICs provide accurate angular measurement over a full 360 degrees of rotation. The AEAT-8811 Encoders utilize integrated hall sensor elements with complex analog and digital signal processing within a single device. The simple two-pole magnet generates the necessary magnetic field by rotating it in perpendicular, placed in alignment to the center of the device. These encoders are user-programmable with zero position, direction, and index width and can select zero latency mode option.

The AEAT-8811 Magnetic Encoders are versatile solutions capable of supporting a broad range of applications with its robust architecture. This measures and delivers both absolute and incremental signals. These encoders operate from -40°C to +125°C temperature range and are available in compact QFN-24 (5mm x 5mm) package. Typical applications include brushless DC motor and stepper motor, resolver and potentiometer replacement, industrial automation and robotics, and industrial sewing machine and textile equipment.

Features

  • Selectable 10, 12, 14, or 16 bits of absolute resolution
  • Incremental output of ABI UVW:
    • 32, 64, 128, 256, 512, 1024, 2048, 4096, 50, 100, 200, 400, 800, 1000, 2000, and 4000 CPR
  • PWM output modes
  • User-programmable zero position, direction, and index width
  • Selectable zero latency mode option
  • Programmable hysteresis
  • Available in 2-wire or 3-wire SSI options:
    • Selectable 3-wire SSI option with initial data output at tri-state mode
  • Compact QFN-24 (5mm x 5mm) package
  • RoHS compliant
  • No programming required for offset calibration

Applications

  • Brushless DC motor and stepper motor
  • Resolver and potentiometer replacement
  • Industrial automation and robotics
  • Industrial sewing machine and textile equipment

Specifications

  • 5V supply voltage
  • 1MHz incremental output frequency fMAX
  • 15pF load capacitance CL
  • 10MHz output sampling rate fS
  • UVW output of 1 to 8 pole pairs
  • -40°C to +125°C wide operating temperature range

Functional Block Diagram

Block Diagram - Broadcom AEAT-8811 Programmable Angular Magnetic Encoders

Package Outline And Lead-Free Solder Reflow Soldering Temperature Profile

Published: 2020-04-24 | Updated: 2020-12-11