WMSIC Electronic Components

ADI/LINEAR DS18S20+T&R DS18S20

ModelDS18S20+T&R
PackageTO-92-2.54mm
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 DS18S20+T&R
Type
ADI/LINEAR
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
DS18S20+T&R
Electronic Component
1
Package
TO-92-2.54mm
Electronic Component
Temperature Sensor
Electronic Component
±0.5℃
Electronic Component
0.666g
Electronic Component
1
Electronic Component
BM0264482262
Operating Voltage
3V~5.5V
Current
1uA
Interface Type
Bus
Resolution
9bit
Electronic Component
Electronic Component
Electronic Component
2000

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

DS18S20+T&R 产品概述

一、产品简介

DS18S20 是一款基于 1-Wire 总线的寄生电源数字温度传感器,适合用于恒温控制与温度监测场景。该器件工作电压 3.0V–5.5V,支持寄生供电模式,无需独立电源线即可工作;并且具有片内非易失参数存储与温度阈值监测功能,便于系统中实现本地报警和长期参数保存。常见品牌/供应渠道包括 ADI(亚德诺)/LINEAR,产品包装可选 TO-92 封装与卷带(T&R)出货方式,便于批量 SMT 或插件线束组装。

二、主要特性

  • 精度:±0.5°C(典型)
  • 工作电压:3.0V ~ 5.5V
  • 待机电流:典型 1 μA,适合低功耗应用
  • 接口类型:单总线(1-Wire),一根数据线可同时实现供电与通信
  • 温度转换时间:750 ms(9-bit 分辨率)
  • 温度分辨率:9 bit(0.5°C 步进)
  • 功能:温度阈值监测(TH/TL)、片内非易失参数存储(保存报警阈值与配置)
  • 封装:TO-92(引脚间距 2.54 mm),适合穿孔安装与原型验证

三、接口与通信要点

DS18S20 采用 1-Wire 协议,每片器件具有唯一 64-bit ROM 代码,支持多点挂接与设备寻址。寄生电源模式下器件利用数据线存储电荷完成转换,注意在温度转换期间需对总线提供强上拉(或使用外部电源)以保证可靠供电与测量完成。通信需注意时序与 CRC 校验以确保数据完整性。

四、典型应用

  • 恒温器与空调温控模块
  • 工业与楼宇自动化的分布式温度采集
  • 数据记录器与实验室环境监测
  • 家电与消费电子的温度保护与报警系统

五、使用建议与注意事项

  • 总线设计上推荐在主控端使用合适阻值的上拉电阻(典型 4.7 kΩ),并在长线或多节点场合考虑线缆阻抗与去耦。
  • 寄生供电模式虽然简化布线,但在高可靠性或长总线时优先使用独立电源以避免转换期间电压不足。
  • 温度读数为 9-bit 分辨率(0.5°C);若需更高分辨率或更快响应,请根据应用选择相应型号或增加滤波/校准策略。
  • 利用片内非易失存储保存 TH/TL 后,可直接利用器件的报警搜索功能快速定位超限节点,便于分布式报警系统设计。

六、包装与订购信息

型号标识常见为 DS18S20,常见出货封装为 TO-92(穿孔)及卷带(T&R)以便自动化贴装或大批量供货。订购时请确认是否为带 T&R 的卷带包装规格、批量与散装差异,以及所需的温度等级与校准证书。

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