WMSIC Electronic Components

MICROCHIP MCP4011-103E/SN MCP4011

ModelMCP4011-103E/SN
PackageSOIC-8
BrandMICROCHIP
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICROCHIP MCP4011-103E / SN
Type
MICROCHIP
Minimum package
100 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICROCHIP
Electronic Component
MCP4011-103E/SN
Electronic Component
1
Package
SOIC-8
Electronic Component
1MHz
Electronic Component
positions
Electronic Component
±20%
Electronic Component
0.255g
Electronic Component
10kΩ
Electronic Component
64
Electronic Component
1
Channel Count
1
Features
positions
Electronic Component
BM0230024215
Type
RAM

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

MCP4011-103E/SN 产品概述

一、产品简介

MCP4011-103E/SN 是 MICROCHIP(美国微芯)推出的一款单通道数字电位器,标称阻值 10 kΩ,具有 64 抽头、线性阻值变化和上/下(U/D + CS)并行控制接口。器件采用 SOIC-8 封装,工作电压范围宽(1.8 V ~ 5.5 V),适用于各种低功耗、精度要求中等的可调电阻场合。器件内部采用 RAM 存储结构(易失性),在断电后需由主控重新设定电位器位置。

二、主要性能参数

  • 阻值:10 kΩ(端对端)
  • 抽头数:64 步(6-bit 分辨率)
  • 通道数:1
  • 精度(阻值容差):±20%
  • 阻值变化:线性(线性抽头分布)
  • 存储类型:RAM(断电后位置丢失)
  • 接口类型:上/下(U/D)控制 + CS(片选,增减脉冲式编程)
  • 积分非线性(INL):0.5 LSB
  • 温度系数(TCR):50 ppm/°C
  • 带宽:约 1 MHz(适用于低频到中频信号路径)
  • 静态电流(工作电流):典型 1 μA(低功耗)
  • 工作电压:1.8 V ~ 5.5 V
  • 工作温度:-40 ℃ ~ +125 ℃
  • 封装:SOIC-8

三、关键特性与优势

  • 低功耗:工作电流典型仅 1 μA,适合电池供电或能耗敏感的终端设备。
  • 宽工作电压:1.8 V~5.5 V 的供电范围,兼容多种 MCU 与系统电源方案。
  • 良好线性与低 INL:0.5 LSB 的积分非线性保证了步进调整的精确度,适合需要稳定增益或偏置的模拟电路。
  • 小温漂:50 ppm/°C 的温度系数在多数工业与消费应用中表现稳定。
  • 简单的 U/D 控制接口:使用两脚(上/下 + CS)即可实现步进式增减,适配占用 I/O 少的 MCU 接口方案。
  • SOIC-8 常见封装,便于 PCB 布局与自动化贴装。

四、典型应用场景

  • 音频音量/音色调节(低频信号路径)
  • 模拟增益和偏置微调、自动校准(传感器前端)
  • 可调滤波器、AGC(自动增益控制)电路
  • LCD/LED 对比度或亮度调节
  • 便携式与低功耗仪器的可调设定值存取(需在上电后初始化)

五、使用注意事项

  • RAM 存储:器件采用易失性 RAM 存储抽头位置,断电后位置不会保持。对于需上电即恢复的应用,需在系统启动时由 MCU 重设电位器到期望位置,或选用带非易失性存储的型号。
  • 编程速率与时序:U/D + CS 接口为步进式控制,编程速度受器件时序限制,长总步进需考虑时间开销,具体时序请参照官方数据手册。
  • 功率与电流限制:虽然静态电流小,但通过抽头和端点的外加电流应遵循数据手册对最大允许电流的限制,以防内部开关损伤或漂移。
  • 电源与去耦:为保证性能与抑制噪声,建议在 VDD 处加适当去耦电容(如 0.1 μF 附近)。
  • 信号频带:标称带宽约 1 MHz,适用于低频到中频信号,若用于高频或精密模拟链路需评估相位与幅度响应。

六、封装与采购信息

  • 封装:SOIC-8(常见贴片封装,适配标准 PCB 设计)
  • 品牌:MICROCHIP(美国微芯)
  • 型号示例:MCP4011-103E/SN(10kΩ,64 抽头,单通道)

七、常见设计建议

  • 若需上电保持值,可在系统中保存上次位置并在复位后快速重设;或在方案评估阶段考虑使用带 EEPROM/Flash 保持的数字电位器型号。
  • 在模拟敏感路径尽量减小噪声注入,使用短走线、单端/差分匹配等布局方法。
  • 在开发阶段验证温漂与线性度在目标温度范围内的表现,尤其用于工业级应用时需完整做温度循环测试。

总结:MCP4011-103E/SN 为一款低功耗、接口简单、线性良好的单通道数字电位器,适合在对保持性要求不高但需经常软件可调的应用中使用。选用时应注意其 RAM 型存储特性及最大电流/时序约束,结合系统软件在上电初始化即可获得可靠的调节功能。

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