DS18B20

更新时间： 2024-01-20 09:51:04

品牌	Logo	应用领域
达拉斯 - DALLAS		传感器换能器温度传感器输出元件
页数	文件大小	规格书
27页	392K
描述
Programmable Resolution 1-Wire Digital Thermometer

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技术参数
数据手册

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DS18B20 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	SOP8,.25
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	8 weeks
风险等级：	0.99	最大精度（摄氏度）：	0.5 Cel
其他特性：	COMPLIANCE TO MIL-150	主体宽度：	3.9 mm
主体高度：	1.55 mm	主体长度或直径：	4.9 mm
外壳：	PLASTIC	JESD-609代码：	e3
安装特点：	SURFACE MOUNT	位数：	12
端子数量：	8	最大工作电流：	1.5 mA
最高工作温度：	125 °C	最低工作温度：	-55 °C
输出接口类型：	1-WIRE INTERFACE	封装主体材料：	PLASTIC/EPOXY
封装等效代码：	SOP8,.25	封装形状/形式：	RECTANGULAR
电源：	3.3/5 V	传感器/换能器类型：	TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
子类别：	Other Sensors	最大供电电压：	5.5 V
最小供电电压：	3 V	表面贴装：	YES
端子面层：	Matte Tin (Sn)	端接类型：	SOLDER
Base Number Matches：	1

DS18B20 数据手册

PRELIMINARY

DS18B20

Programmable Resolution

1-Wire^®Digital Thermometer

www.dalsemi.com

FEATURES

PIN ASSIGNMENT

ꢀ Unique 1-Wire interface requires only one

port pin for communication

BOTTOM VIEW

DALLAS

DS1820

1 2 3

ꢀ Multidrop capability simplifies distributed

temperature sensing applications

ꢀ Requires no external components

ꢀ Can be powered from data line. Power supply

range is 3.0V to 5.5V

ꢀ Zero standby power required

ꢀ Measures temperatures from -55°C to

+125°C. Fahrenheit equivalent is -67°F to

+257°F

ꢀ ±0.5°C accuracy from -10°C to +85°C

ꢀ Thermometer resolution is programmable

from 9 to 12 bits

ꢀ Converts 12-bit temperature to digital word in

750 ms (max.)

1 2 3

DS18B20 To-92

Package

V_DD

GND

ꢀ User-definable, nonvolatile temperature alarm

settings

DS18B20Z

ꢀ Alarm search command identifies and

addresses devices whose temperature is

outside of programmed limits (temperature

alarm condition)

8-Pin SOIC (150 mil)

PIN DESCRIPTION

GND - Ground

ꢀ Applications include thermostatic controls,

industrial systems, consumer products,

thermometers, or any thermally sensitive

system

V_DD- Power Supply Voltage

NC - No Connect

- Data In/Out

DESCRIPTION

The DS18B20 Digital Thermometer provides 9 to 12-bit (configurable) temperature readings which

indicate the temperature of the device.

Information is sent to/from the DS18B20 over a 1-Wire interface, so that only one wire (and ground)

needs to be connected from a central microprocessor to a DS18B20. Power for reading, writing, and

performing temperature conversions can be derived from the data line itself with no need for an external

power source.

Because each DS18B20 contains a unique silicon serial number, multiple DS18B20s can exist on the

same 1-Wire bus. This allows for placing temperature sensors in many different places. Applications

where this feature is useful include HVAC environmental controls, sensing temperatures inside buildings,

equipment or machinery, and process monitoring and control.

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050400

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与DS18B20相关器件

型号	品牌	描述	获取价格	数据表
DS18B20/GG8	MAXIM	Serial Switch/Digital Sensor, 12 Bit(s), 0.5Cel, Round, Through Hole Mount, TO-92, 3 PIN	获取价格
DS18B20/T&R	MAXIM	Serial Switch/Digital Sensor, 12 Bit(s), 0.50Cel, Rectangular, 3 Pin, Through Hole Mount,	获取价格
DS18B20_07	DALLAS	Programmable Resolution 1-Wire Digital Thermometer	获取价格
DS18B20_08	MAXIM	1-Wire Digital Thermometer	获取价格
DS18B20_08	DALLAS	Programmable Resolution 1-Wire Digital Thermometer	获取价格
DS18B20+	MAXIM	暂无描述	获取价格

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