AD8646

24 MHZ轨到轨双通道运算放大器
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产品详情

AD8646、AD8647和AD8648分别是双通道、双通道和四通道、轨到轨输入和输出、单电源放大器,具有低失调电压、宽信号带宽、低输入电压和低电流噪声等特性。AD8647还具有低功耗关断功能。

24 MHz带宽、低失调、低噪声和极低的输入偏置电流特性相结合,使这些放大器适合各种应用。滤波器、积分器、光电二极管放大器和高阻抗传感器等器件均可受益于这些特性组合。宽带宽和低失真特性则有益于交流应用。AD8646/AD8647/AD8648均具有高输出驱动能力,是音频线路驱动器和其它低阻抗应用的理想选择。AD8646和AD8648可以用于汽车应用。参见订购指南

具体应用包括:便携式和低功耗仪器仪表、便携式设备的音频放大、便携式电话耳机、条形码扫描器以及多极滤波器。此外还具有轨到轨输入与输出摆幅能力,因而设计人员可以在单电源系统中缓冲CMOS ADC、DAC、ASIC及其它宽输出摆幅器件。

应用

  • 电池供电仪表
  • 多极滤波器
  • ADC前端
  • 传感器
  • 条形码扫描器
  • ASIC输入或输出放大器
  • 音频放大器
  • 光电二极管放大器
  • 数据通路/多路复用器/开关控制
  • 产品生命周期

    checked 推荐新设计使用

    本产品已上市。数据手册包含所有最终性能规格和工作条件。ADI公司推荐新设计使用这些产品。

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    EVAL-FMCMOTCON2 电路图

    产品详情

    The AD-FMCMOTCON2-EBZ is a complete high performance servo system on an FPGA Mezzanine Card (FMC) board, the purpose of which is to provide a complete motor drive system demonstrating efficient and high dynamic control of three phase PMSM and induction motors up to 48V and 20A.

    Two motors can be driven at the same time, each motor having its separate power supply. The system incorporates high quality power sources; reliable power, control, and feedback signals isolation; accurate measurement of motor current & voltage signals; high speed interfaces for control signals to allow fast controller response; industrial Ethernet high speed interfaces; single ended Hall, differential Hall, encoder and resolver interfaces; digital position sensors interface; flexible control with a FPGA/SoC interface.

    The kit consists of two boards: a controller board and a drive board. An optional AD-DYNO2-EBZ dynamometer can also be purchased through Avnet and is intended to be an extension of the drive system.

    Controller Board

    • Digital board for interfacing with the low and high voltage drive boards
    • Compatible with all Xilinx FPGA platforms with FMC LPC or HPC connectors
    • FMC signals voltage adaptation interface for seamless operation on all FMC voltage levels
    • Fully isolated digital control and feedback signals
    • Isolated Xilinx XADC interface
    • 2 x Gbit Ethernet PHYs for high speed industrial communication, with 3rd party EtherCAT support
    • Single ended Hall, Differential Hall, Encoder, Resolver interfaces
    • Digital sensors interfaces
      • EnDat
      • BISS Interface

    Drive Board

    • Drives motors up to 48V @ 20A
    • Drives 2 motors simultaneously
    • High frequency drive stage implemented with ADI isolated gate drivers
    • Supported motor types
      BLDC
      PMSM
      Brushed DC
      Stepper (bipolar / unipolar)
    • Integrated over current protection
    • Reverse voltage protection
    • Current and Voltage measurement using isolated ADCs
    • BEMF zero cross detection for sensorless control of PMSM or BLDC motors
    • Separate voltage supplies for the 2 motors so that the motors don't influence each other

    Dynamometer System with Embedded Control

    • Two BLDC motors connected by a rigid couple in a dyno setup, which can be used to test real-time motor control performance.
    • One BLDC motor acts as an electronically adjustable load and is driven by the embedded control system. This motor can be directly connected to the FMC motor drive to get complex / active loads. The load can be driven also by the AD-FMCMOTCON2-EBZ to implement dynamic load profiles.
    • The other BLDC motor is driven by the FMC motor drive.
    • Measurement and display of load motor current
    • Measurement and display of load motor speed
    • External control using Analog Discovery and MathWorks Instrumentation Control Toolbox

    Software:

    Example reference designs showing how to use the platform with Xilinx® FPGAs or SoCs and high performance control algorithms from Mathworks® are provided together with the hardware. Information on the FMC board, and how to use it, the design package that surrounds it, and the software which can make it work, can be found by clicking the software link.

    产品详情

    通用精密运算放大器评估板针对许多电路配置而设计并优化,以便用户能够找到最适合其应用的设计。 这些评估板全部兼容RoHs标准。 参考下列引脚数和封装,决定需要订购的型号:

    • EVAL-PRAOPAMP-2CPZ(双通道8引脚LFCSP)CP-8
    • EVAL-PRAOPAMP-2RMZ(双通道8引脚MSOP)RM-8
    • EVAL-PRAOPAMP-2RZ(双通道8引脚SOIC)R-8

    工具及仿真模型

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    AD8646 材料声明
    PCN-PDN信息 质量和可靠性 原理图符号和PCB封装

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