WMSIC Electronic Components

RENESAS DG444DYZ-T DG444DYZ

ModelDG444DYZ-T
Package16-SOIC
BrandRENESAS
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RENESAS DG444DYZ-T
Type
16-SOIC
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RENESAS
Electronic Component
DG444DYZ-T
Electronic Component
1
Package
16-SOIC
Electronic Component
Analog Switch / Multiplexer
Electronic Component
0.2g
Electronic Component
1
Channel Count
4
Features
Analog
Electronic Component
BM0264880590
Operating Temperature
40℃~+85℃
Operating Voltage
20V~20V
Switch
1:1
(ton)
250ns
Capacitor(Con)
16pF

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

DG444DYZ-T 4通道SPST常闭模拟开关产品概述

DG444DYZ-T是瑞萨电子(RENESAS)推出的一款4通道单刀单掷(SPST)常闭型模拟开关,专为需要宽电压兼容、高速切换及低信号损耗的模拟信号处理场景设计。该器件整合了工业级可靠性与高频适配能力,是工业自动化、通信设备、测试测量等领域的实用选型。

一、核心特性总览

DG444DYZ-T的核心设计围绕多通道切换、宽电压适配、高速响应三大需求展开,关键特性包括:

  • 4独立SPST常闭通道,支持单通道/多通道同步切换;
  • 工作电压范围:-20V至+20V(兼容正负模拟电源与信号);
  • 高速切换:导通时间(tₒₙ)≤250ns,关闭时间(tₒff)≤140ns;
  • 低信号损耗:导通电阻(Rₒₙ)典型值85Ω,导通电容(Cₒₙ)典型值16pF;
  • 工业级温度:-40℃至+85℃,适应恶劣环境;
  • 16引脚SOIC表面贴装封装,紧凑易集成。

二、关键参数详解

1. 宽电压范围(-20V~+20V)

支持双极性电源(±20V以内),可直接兼容工业传感器、模拟信号发生器等输出的正负电压信号,无需额外电平转换电路,简化系统设计。

2. 高速切换性能

导通时间250ns、关闭时间140ns的切换速度,适配高频模拟信号切换(如射频链路、高速数据采集),避免信号延迟导致的系统性能下降。

3. 低信号损耗特性

  • 导通电阻85Ω:同类4通道开关中处于较低水平,减少小信号(如mV级传感器输出)的幅度衰减;
  • 导通电容16pF:降低高频信号的相位偏移与幅度衰减,适配10MHz以上模拟信号切换(需结合电路阻抗)。

4. 工业级可靠性

-40℃至+85℃的工作温度范围,符合工业自动化、户外通信设备等场景的环境要求,器件稳定性不受极端温度影响。

三、封装与品牌优势

1. 16-SOIC封装

采用16引脚小外形集成电路(SOIC)表面贴装封装,优势明显:

  • 体积紧凑:相比DIP封装节省约60%PCB空间,适合高密度集成;
  • 散热性好:表面贴装结构利于热量散发,降低过热失效风险;
  • 工艺兼容:支持标准SMT生产,便于批量制造。

2. 瑞萨品牌保障

瑞萨模拟开关具备高一致性、低批次差异特点,且提供完善技术支持与质量保证,降低系统研发/生产风险。

四、典型应用场景

DG444DYZ-T的特性使其广泛适用于:

  1. 工业数据采集:多通道传感器信号切换(温度、压力等),宽电压兼容不同输出;
  2. 通信设备:射频链路切换、基站信号测试通道切换,高速响应适配高频信号;
  3. 测试测量仪器:示波器、信号发生器的多通道切换,低导通电阻确保测量精度;
  4. 医疗设备:便携式监护仪的生理信号切换,宽温范围适应不同环境;
  5. 汽车电子子系统:车载传感器信号切换(中温场景),低功耗适配电池供电。

五、应用注意事项

  1. 电源限制:严禁超过-20V~+20V工作电压,避免器件损坏;
  2. ESD防护:模拟开关对静电敏感,生产/测试需采取接地、防静电手环等措施;
  3. PCB布局:信号路径尽量短,减少通道串扰;电源引脚就近放置0.1μF去耦电容,稳定电源噪声;
  4. 温漂补偿:导通电阻随温度略有变化(每℃增加~0.3Ω),设计需考虑温漂补偿。

六、与同类产品对比优势

相比部分竞品,DG444DYZ-T具有:

  • 宽电压兼容:支持双极性±20V,竞品多为单电源或±15V以内;
  • 高速切换:关闭时间140ns,比同类快30%以上;
  • 低导通电容:16pF适配更高频率信号切换。

总结:DG444DYZ-T是兼顾宽电压、高速、低损耗与工业级可靠性的4通道SPST常闭模拟开关,适合对信号质量、切换速度有较高要求的模拟系统设计,是瑞萨模拟开关产品线中的实用型号。

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