WMSIC Electronic Components

ADI/LINEAR DS18B20Z+T&R DS18B20Z

ModelDS18B20Z+T&R
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ADI(Analog Devices) / LINEAR DS18B20Z+T&R
Type
ADI/LINEAR
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
DS18B20Z+T&R
Electronic Component
1
Package
SOIC-8
Electronic Component
Temperature Sensor
Electronic Component
±0.5℃
Electronic Component
0.219g
Electronic Component
1
Features
Output
Electronic Component
BM0264335284
Operating Voltage
3V~5.5V
Current
1uA
Interface Type
Bus
Electronic Component
55℃~+125℃
Resolution
12bit

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

DS18B20Z+T&R可编程分辨率单总线数字温度传感器产品概述

一、品牌与封装规格

DS18B20Z+T&R由亚德诺半导体(ADI)旗下LINEAR产品线推出,是一款针对宽温环境测温优化的数字温度传感器。其封装采用SOIC-8(小外形集成电路封装),符合表面贴装工艺要求,适配自动化贴装产线;产品后缀“T&R”表明采用编带包装,适合批量生产;“Z”标识工作温度范围为-55℃~+125℃,“+”代表符合RoHS环保标准(无铅无卤)。

引脚定义清晰:包含电源端(VDD)、接地端(GND)、单总线数据端(DQ),同时支持寄生电源模式(可通过DQ线供电,无需外部VDD),进一步简化电路设计,降低布线成本。

二、核心功能特性

该传感器的核心优势在于可编程分辨率与单总线架构的结合,具体特性如下:

  1. 可编程分辨率:支持9位(0.5℃)、10位(0.25℃)、11位(0.125℃)、12位(0.0625℃)四档,可根据应用需求灵活配置,平衡测温精度与响应速度;
  2. 宽温测温能力:覆盖-55℃~+125℃全温度范围,满足工业、汽车等 harsh环境的测温需求;
  3. 非易失性存储:内置EEPROM,可存储温度上下限报警阈值及分辨率设置,掉电后数据不丢失;
  4. 低功耗设计:休眠模式下功耗极低(典型值<1μA),适合电池供电或低功耗系统;
  5. 无需外部校准:出厂前已完成校准,可直接使用,无需额外校准电路,简化开发流程。

三、关键工作参数

  • 工作电压:3.0V~5.5V,兼容常见MCU的IO口电压(如3.3V、5V系统),适配多数嵌入式平台;
  • 测温精度:12位分辨率下,-10℃+85℃范围内精度为±0.5℃;-55℃+125℃范围内精度为±2℃,满足工业级测温要求;
  • 测量时间:9位分辨率约93.75ms,12位分辨率约750ms,响应速度随分辨率提升略有降低;
  • 功耗表现:主动测温时典型电流约1mA,休眠模式电流<1μA,功耗优势显著,适合长期运行场景。

四、单总线接口与通信机制

DS18B20Z+T&R采用单总线协议,仅需一根数据线(DQ)即可实现数据双向传输与供电(寄生电源模式),大幅减少系统布线复杂度,支持多个传感器在同一总线上组网(最多可挂接多个节点)。

通信过程分为三个阶段:

  1. 初始化:主机发送复位脉冲,传感器返回存在脉冲,确认通信连接;
  2. ROM命令:用于读取传感器唯一64位ID(含家族码、序列号),实现多点识别;
  3. 功能命令:包括温度转换(启动测温)、读取温度值、设置报警阈值等,数据传输速率为16.3kbps(标准速率)。

五、典型应用场景

凭借宽温范围、单总线架构及低功耗特性,该传感器广泛应用于以下领域:

  1. 工业自动化:电机绕组、管道、PLC模块的温度监测,防止过热故障;
  2. 智能家居:冰箱、空调、热水器的温度控制,提升能源效率;
  3. 环境监测:温室大棚、仓库、户外气象站的温度采集;
  4. 汽车电子:动力电池包、发动机舱的温度监测,保障安全运行;
  5. 医疗设备:低温冰箱、试剂存储箱的温度监控,满足合规要求。

六、产品优势与市场定位

DS18B20Z+T&R的核心优势在于成本与性能的平衡:单总线减少布线成本,寄生电源模式无需额外电源电路,可编程分辨率适配不同场景,宽温范围覆盖工业级需求;ADI品牌保障可靠性与一致性,适合对成本敏感且需高可靠性的批量应用。相比同类单总线传感器,其精度与温度范围更具竞争力,尤其适合 harsh环境下的测温需求。

该产品凭借成熟的单总线技术与稳定的宽温性能,成为工业、汽车、智能家居等领域测温方案的主流选择。

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