厂商Maxim Integrated 传感器，变送器温度传感器 DS18B20+T&R 数据手册，datasheet pdf下载

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型号：	DS18B20+T&R
厂商：	Maxim Integrated
标准：
分类：	传感器，变送器，温度传感器
描述：	board mount temperature sensors prgmble resolution 1-wire parasite pwr
PDF：	预览
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DS18B20+T&R的详细信息

Manufacturer：	Maxim Integrated
Product Category：	Board Mount Temperature Sensors
RoHS：	Yes
Output Type：	Digital
Configuration：	Local
Accuracy：	+/- 2 C
Temperature Threshold：	Programmable
Digital Output - Bus Interface：	1-Wire
Supply Voltage - Max：	5.5 V
Supply Voltage - Min：	3 V
Maximum Operating Temperature：	+ 125 C
Minimum Operating Temperature：	- 55 C
Shutdown：	No Shutdown
Mounting Style：	Through Hole
Package / Case：	TO-92-3
Device Function：	Sensor
Brand：	Maxim Integrated
Digital Output - Number of Bits：	12 bit
Packaging：	Reel
Series：	DS18B20
Factory Pack Quantity：	2000
Supply Current：	1.5 mA
Part # Aliases：	90-18B20+TRL DS18B20

DS18B20

Programmable Resolution

1-Wire Digital Thermometer

User-Definable Nonvolatile (NV) Alarm

Settings

Alarm Search Command Identifies and

Addresses Devices Whose Temperature is

Outside Programmed Limits (Temperature

Alarm Condition)

DESCRIPTION

The DS18B20 digital thermometer provides 9-bit

to 12-bit Celsius temperature measurements and

has an alarm function with nonvolatile user-

programmable upper and lower trigger points.

The DS18B20 communicates over a 1-Wire bus

that 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 +125°C and is accurate to

±0.5°C over the range of -10°C to +85°C. In

addition, the DS18B20 can derive power directly

from the data line (“parasite power”), eliminating

the need for an external power supply.

Available in 8-Pin SO (150 mils), 8-Pin µSOP,

and 3-Pin TO-92 Packages

Software Compatible with the DS1822

Applications Include Thermostatic Controls,

Industrial Systems, Consumer Products,

Thermometers, or Any Thermally Sensitive

System

PIN CONFIGURATIONS

Each DS18B20 has a unique 64-bit serial code,

which allows multiple DS18B20s to function on

the same 1-Wire bus. Thus, it is simple to use one

microprocessor to control many DS18B20s

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.

MAXIM

18B20

N.C.

V_DD

N.C.

GND

1 2 3

SO (150 mils)

(DS18B20Z)

FEATURES

Unique 1-Wire® Interface Requires Only One

Port Pin for Communication

Each Device has a Unique 64-Bit Serial Code

Stored in an On-Board ROM

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

V_DD

N.C.

GND

N.C.

2 3

µSOP

(DS18B20U)

(BOTTOM VIEW)

Measures Temperatures from -55°C to +125°C

(-67°F to +257°F)

±0.5°C Accuracy from -10°C to +85°C

Thermometer Resolution is User Selectable

from 9 to 12 Bits

TO-92

(DS18B20)

Converts Temperature to 12-Bit Digital Word in

750ms (Max)

1-Wire is a registered trademark of Maxim Integrated Products, Inc.

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

REV: 042208

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