AD5246

量产

128 Position I2C Compatible Programmable Resistor in SC70 Package

数据手册 (Rev. C) 产品选型表
产品技术资料帮助

ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许，也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。
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概述

  • 128 Position
  • End-to-End Resistance 5kΩ, 10kΩ , 50kΩ , 100kΩ
  • Ultra-Compact SC70-6 (2 mm x 2.1 mm) Package
  • I2C Compatible Interface
  • Full Read/Write of Wiper Register
  • Power-on Preset to Midscale
  • Single Supply +2.7 V to +5.5 V
  • Low Temperature Coefficient 45 ppm/°C
  • Low Power, IDD=3 µA typical
  • Wide Operating Temperature –40°C to +125°C
  • Evaluation Board Available
  • Available in lead-free (Pb-free) package

The AD5246 provides a compact 2 mm × 2.1 mm packaged solution for 128-position adjustment applications. This device performs the same electronic adjustment function as a variable resistor. Available in four different end-to-end resistance values (5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ), these low temperature coefficient devices are ideal for high accuracy and stability variable resistance adjustments.

The wiper settings are controllable through the I2C compatible digital interface, which can also be used to read back the present wiper register control word. The resistance between the wiper and either end point of the fixed resistor varies linearly with respect to the digital code transferred into the RDAC1 latch.

Operating from a 2.7 V to 5.5 V power supply and consuming 3 μA allows for usage in portable battery-operated applications.

APPLICATIONS
  • Mechanical potentiometer replacement in new designs
  • Transducer adjustment of pressure, temperature, position, chemical, and optical sensors
  • RF amplifier biasing
  • Automotive electronics adjustment
  • Gain control and offset adjustment

    • 1The terms digital potentiometer, VR, and RDAC are used interchangeably in this document.

    AD5246
    128 Position I2C Compatible Programmable Resistor in SC70 Package
    AD5246 Functional Block Diagram AD5246 Pin Configuration
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    参考资料

    数据手册 1

    用户手册 1

    应用笔记 1

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    软件资源

    器件驱动器 1

    评估套件

    eval board
    schematic 1
    EVAL-AD5246

    AD5246 评估板

    立即购买 更多内容

    特性和优点

    • 可配合低压digiPOT母板(EVAL-MB-LV-SDZ)使用的全功能评估板
    • 各种测试电路
    • 各种交流/直流输入信号
    • 通过单独购买的系统演示平台（SDP-B或SDP-S）进行PC控制
    • PC控制软件

    产品详情

    AD5246支持2.7 V至5.5 V单电源供电，适合具有出色的低温度系数性能的电池供电应用及许多其它应用。


    此外，AD5246采用多功能I2C串行接口，可在快速模式下工作，速率最高可达400 kHz。


    EVAL-AD5246DBZ和EVAL-MB-LV-SDZ可在单电源模式下工作，从USB内部电源供电。


    可在AD5246数据手册中找到AD5246部件的完整技术规格。
    EVAL-AD5246
    AD5246 评估板
    eval-image-unavailable

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