WMSIC Electronic Components

ADI(亚德诺)/LINEAR ADR4520BRZ-R7

ModelADR4520BRZ-R7
PackageSOIC-8
BrandADI/LINEAR
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
ADI(Analog Devices) / LINEAR ADR4520BRZ-R7
Type
ADI(Analog Devices) / LINEAR
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
ADR4520BRZ-R7
Electronic Component
1
Package
SOIC-8
Electronic Component
Voltage Reference IC
Electronic Component
±0.02%
Electronic Component
0.179g
Electronic Component
1
Electronic Component
BM0264678320
Operating Temperature
40℃~+125℃
Operating Voltage
3V~15V
Electronic Component
2ppm/℃
Output Voltage
2.048V
Output Current
10mA
Output Type
Electronic Component

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

ADR4520BRZ-R7 产品概述

一、产品简介

ADR4520BRZ-R7 是来自 ADI/LINEAR 的高精度固定电压基准芯片,输出电压为 2.048V,面向需要极高稳定性和极低漂移的精密测量与数据采集系统。器件采用 SOIC-8 封装,输入工作电压范围为 3V 至 15V,能够在常见单电源或双电源系统中直接使用。其设计为串联型(series)电压基准,适合作为 ADC、DAC、精密比较器及校准模块的参考源。

二、关键性能参数

  • 输出类型:固定
  • 输出电压:2.048V
  • 输出电流:最大 10mA(可驱动后级电路或缓冲)
  • 工作电压:3V ~ 15V
  • 精度:±0.02%(高精度初始误差)
  • 温度系数:2 ppm/℃(超低温漂)
  • 静态电流(Iq):950 μA(低功耗但保持高稳定性)
  • 噪声(0.1Hz–10Hz):1 μVpp(低频噪声极低,适合高分辨率测量)
  • 工作温度范围:-40℃ ~ +125℃
  • 封装:SOIC-8

三、主要特性与优势

  • 极高的初始精度与极低温漂(±0.02%、2 ppm/℃),保证长期和温度变化下的参考稳定性,适合 ppm 级精度要求的系统。
  • 低噪声(0.1Hz–10Hz 1 μVpp),有利于低频微小信号测量,如电桥、传感器放大与高分辨率 ADC 前端。
  • 宽输入电压范围(3V–15V),兼容多种工业与便携式供电方案。
  • 合理的静态电流(≈950 μA),在保持精度与低噪声的同时降低系统功耗。
  • SOIC-8 封装便于 PCB 布局与散热,适合批量生产与工业级应用。

四、典型应用场景

  • 高精度模数转换器(ADC)的参考源,用于数据采集、测试测量与成像系统。
  • 精密传感器前端与信号调理(称重传感器、压力与温湿度测量)。
  • 校准与标准电压源,用于校准仪器与系统自检。
  • 精密电源与参考电路设计,需长期稳定输出的工业控制与医疗设备。
  • 低噪声测量系统与微小电压检测场合。

五、设计与布局建议

  • 将基准芯片靠近使用端(如 ADC 参考脚)布局,减少输出路径的寄生电阻与噪声耦合。
  • 输入与输出引脚的旁路电容采用低漏电、低等效串联电阻(ESR)的电容器,并接地良好。避免将大容量或高串联阻抗电容直接连接在输出上而引起不稳定,具体旁路方案参考器件数据手册的推荐值与网络。
  • 为降低热误差,避免将芯片放置在热源(如功率器件或热耗散元件)附近,并保证良好散热路径。
  • 输出驱动接近最大 10mA 时注意功耗与热升,必要时增加外部缓冲放大器以减小基准负载变化带来的误差。

六、选型参考

若系统对静态与动态精度、低温漂和低频噪声有严格要求,且需要一个稳定的 2.048V 基准输出,ADR4520BRZ-R7 是高性价比的选择。对于需更大输出驱动或不同输出电压的场合,可考虑配套的缓冲放大或采用可调型参考;在极低功耗或极端温度范围的应用中,应结合系统总体功耗预算与散热设计进行评估。

总结:ADR4520BRZ-R7 以其 ±0.02% 的高初始精度、2 ppm/℃ 的低温漂与超低噪声,适合对基准稳定性要求苛刻的精密测量与工业控制应用。选择与布局合理,可以显著提升系统的测量精度与长期稳定性。

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