Datasheet > DS18B20-PAR

DS18B20-PAR

更新时间： 2024-09-25 14:58:15

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
19页	221K
描述
1-Wire寄生供电数字温度计

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中文翻译

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数据手册

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DS18B20-PAR 数据手册

DS18B20-PAR

1-Wire Parasite-Power

Digital Thermometer

www.maxim-ic.com

FEATURES

PIN ASSIGNMENT

• Unique 1-Wire^®interface requires only one

port pin for communication

DALLAS

18B20P

• Derives power from data line (“parasite

power”)—does not need a local power supply

• Multi-drop capability simplifies distributed

temperature sensing applications

1 2 3

• Requires no external components

• ±0.5°C accuracy from –10°C to +85°C

• Measures temperatures from –55°C to

+100°C (–67°F to +212°F)

• Thermometer resolution is user-selectable

from 9 to 12 bits

• Converts temperature to 12-bit digital word in

750 ms (max.)

• User–definable non-volatile temperature

alarm settings

• Alarm search command identifies and

addresses devices whose temperature is

outside of programmed limits (temperature

alarm condition)

(BOTTOM VIEW)

TO-92

(DS18B20-PAR)

• Software compatible with the DS1822-PAR

• Ideal for use in remote sensing applications

(e.g., temperature probes) that do not have a

local power source

PIN DESCRIPTION

GND - Ground

- Data In/Out

- No Connect

DESCRIPTION

The DS18B20-PAR digital thermometer provides 9 to 12–bit centigrade temperature measurements and

has an alarm function with nonvolatile user-programmable upper and lower trigger points. The

DS18B20-PAR does not need an external power supply because it derives power directly from the data

line (“parasite power”). The DS18B20-PAR communicates over a 1-Wire bus, which by definition

requires only one data line (and ground) for communication with a central microprocessor. It has an

operating temperature range of –55°C to +100°C and is accurate to ±0.5°C over a range of –10°C to

+85°C.

Each DS18B20-PAR has a unique 64-bit identification code, which allows multiple DS18B20-PARs to

function on the same 1–wire bus; thus, it is simple to use one microprocessor to control many DS18B20-

PARs distributed over a large area. Applications that can benefit from this feature include HVAC

environmental controls, temperature monitoring systems inside buildings, equipment or machinery, and

process monitoring and control systems.

1-Wire is a registered trademark of Dallas Semiconductor.

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101207

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中文翻译

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与DS18B20-PAR相关器件

型号	品牌	获取价格	描述	数据表
DS18B20-PAR/T&R	MAXIM	获取价格	Serial Switch/Digital Sensor, 12 Bit(s), 0.50Cel, Round, Through Hole Mount, TO-92, 3 PIN
DS18B20-PAR_07	MAXIM	获取价格	1-Wire Parasite-Power Digital Thermometer
DS18B20-PAR+T&R	MAXIM	获取价格	暂无描述
DS18B20-SL	DALLAS	获取价格	Programmable Resolution 1-Wire Digital Thermometer
DS18B20-SL/T&R	MAXIM	获取价格	Serial Switch/Digital Sensor, 12 Bit(s), 0.50Cel, Rectangular, 3 Pin, Through Hole Mount,
DS18B20-SL+T&R	MAXIM	获取价格	Serial Switch/Digital Sensor, 12 Bit(s), 0.50Cel, Rectangular, 3 Pin, Through Hole Mount,
DS18B20U	DALLAS	获取价格	Programmable Resolution 1-Wire Digital Thermometer
DS18B20U	MAXIM	获取价格	Serial Switch/Digital Sensor, 12 Bit(s), 0.50Cel, Square, 8 Pin, Surface Mount, USOP-8
DS18B20U	UMW	获取价格	温度感应器
DS18B20U/T&R	MAXIM	获取价格	暂无描述

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