AD5143

量产

四通道、256位、I2C、非易失性数字电位计

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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。

概述

  • 10 kΩ和100 kΩ电阻可选
  • 电阻容差：8%（最大值）
  • 游标电流：±6 mA
  • 低温度系数：35 ppm/°C
  • 宽带宽：3 MHz
  • 快速启动时间：< 75 μs
  • 快速启动时间：< 75 μs
  • 单电源及双电源供电
  • 宽工作温度范围：−40°C至+125°C
  • 3 mm × 3 mm封装
AD5143
四通道、256位、I2C、非易失性数字电位计
AD5123/AD5143 Functional Block Diagram AD5123-5143-PC
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参考资料

数据手册 1

用户手册 2

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软件资源

器件驱动器 1

工具及仿真模型

IBIS 模型 1

评估套件

EVAL-AD5143

AD5143 评估板

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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

AD5143具有多功能的编程能力，支持多种工作模式，包括对RDAC和EEMEM寄存器进行读/写访问、电阻递增/递减、±6 dB电阻量程变化和游标设置回读，同时提供额外的EEMEM，用于存储用户定义信息，如其他元件的存储器数据或查找表。


AD5143支持±2.25 V至±2.75 V双电源和2.3 V至5.5 V单电源供电，适合电池供电应用及许多其它应用。此外，AD5143可配置为多功能I2C或SPI串行接口。EVAL-AD5143DBZ可在单电源或双电源模式下工作，从USB内部电源供电。


可在AD5143数据手册中找到AD5143的完整技术规格。


eval board
schematic 1
schematic 2
schematic 3
EVAL-AD5143-2DBZ

Evaluating the AD5143 Digital Potentiometer

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特性和优点

  • Full featured evaluation board for the AD5143 in conjunction with low voltage digital potentiometer (digiPOT) motherboard (EVAL-MB-LV-ARDZ)
  • Various test circuits
  • Various power solutions
  • Various AC/DC input signals
  • PC control in conjunction with the Analog Devices, Inc., EVALSDP-CK1Z (SDP-K1) controller board

产品详情

This user guide describes the evaluation board for evaluating the AD5143—a digital potentiometer with 256 positions and nonvolative memory. With versatile programmability, the AD5143 allows multiple modes of operation, including read/write access in the RDAC and EEPROM registers, increment/decrement of resistance, resistance changes in ±6 dB scales, wiper setting readback, and extra electronically erasable programmable read‐only memory (EEPROM) for storing user-defined information, such as memory data for other components or a lookup table.

The AD5143 supports a dual supply (±2.25V to ±2.75V) operation and a single supply (+2.3V to +5.5V) operation, making the device suitable for battery-powered applications and many other applications. The EVAL-MB-LV-ARDZ incorporates an internal power supply from the USB and provides on-board +5V, +3V, +2.5V/−2.5V supplies to the EVAL-AD5143-2DBZ.

The EVAL-MB-LV-ARDZ interfaces with the USB port of a PC via the system demonstration platform (SDP-K1) controller board. The ACE software is available for download on the EVAL-AD5143-2DBZ product page. This software enables the user to program the AD5143. A peripheral module interface (PMOD) connection is also available that allows the connection of different microcontrollers to the EVAL-MB-LV-ARDZ without the SDP-K1 controller board. Note that when a microcontroller is used through the PMOD connection, the SDP-K1 board must be disconnected, and the user cannot use the ACE software.

Complete specifications for the AD5143 part can be found in the AD5143 data sheet, which is available from Analog Devices, and must be consulted in conjunction with this user guide when using the evaluation board.
EVAL-AD5143
AD5143 评估板
EVAL-AD5143-2DBZ
Evaluating the AD5143 Digital Potentiometer
EVAL-AD5143-2DBZ Evaluation Board Angle View EVAL-AD5143-2DBZ Evaluation Board Top View EVAL-AD5143-2DBZ Evaluation Board Bottom View

最新评论

8 年前
AD5123/AD5143 数字电位计 ±6 dB增量和减量指令问题
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