Programmable Resolution Single-Bus Temperature Sensor - XBLW DS18B20 Offers Temperature Measurement With A Resolution of 9 To 12 Bits

PublishTime： 2024-05-01 Article Source：XBLW News

The XBLW DS18B20 Is A Digital Thermometer That Offers Temperature Measurement With A Resolution Of 9 To 12 Bits. It Can Program Temperature Lower And Upper Limit Alarms Via Programmable Non-Volatile Memory Units. The XBLW 18B20 Programmable Resolution Single-Bus Temperature Sensor Communicates With A Host Computer Using A Single-Bus Protocol, Requiring Only One Signal Line And One Ground Line. It Has A Temperature Measurement Range Of -55℃ To +125℃, With A Testing Accuracy Of ±0.4℃ Within The Range Of -10℃ To +70℃. Additionally, It Can Operate In Parasitic Power Mode, Directly Powered Through The Signal Line Without Requiring An Additional Power Supply. Each XBLW 18B20 Has A Globally Unique 64-bit Serial Number, Allowing Multiple XBLW 18B20s To Be Daisy-Chained On The Same Single Bus For Networked Operation, Requiring Only One Processor To Control Multiple XBLW 18B20s Distributed Over A Wide Area.

1、Main Features

· Single-Bus Interface Requiring Only One Port Pin For Communication.

· Temperature Conversion Speed Below 400ms At Up To 12-bit Precision.

· User-defined non-volatile Temperature Alarm Settings.

· Multi-Point Distributed Temperature Sensing Capability.

· Device Identification And Labeling Of Temperature Exceeding Program-Set Values Through Alarm Search Commands.

· No External Components Required.

· Exceptional Electrostatic Discharge Protection: HBM 8000V MM 800V.

· Power Supply Through The Data Line; Voltage Range From 2.5V To 5.5V.

· Available In Surface-Mount MSOP8 And 3-Pin TO-90 Packages.

· Temperature Measurement Range From -55℃ To +125℃ (-67℉ To +257℉).

· Applications Include Temperature Control, Industrial Systems, Consumer Products, Grain Temperature Monitoring, Thermometers, Or Any Thermal Sensing Systems.

· Accuracy Of ±0.4℃ Within The Range Of -10℃ To +70℃.

· Temperature Resolution Selectable From 9 To 12 Bits.

2、Package And Pin Definitions

XBLW DS18B20内部方框图

3、Power Supply Description

Strong Pull-Up Power During Temperature Conversion Of XBLW DS18B20 (Parasitic Power Mode)

External Power Supply Mode For XBLW DS18B20

Multi-Point Temperature Sensing Circuit For XBLW DS18B20

3、Partial Application Scenarios Examples

Pharmaceutical Factory Warehousing

Refrigerated Storage Measurement

Water Temperature Detection Device

XBLW DS18B20 Is A Smart Integrated Digital Temperature Sensor Known For Its Excellent Performance, Ease Of Use, And Consistency. The Multi-Point Temperature Measurement System Formed By It Boasts High Measurement Accuracy, Good Stability, Simple Structure, Flexible Configuration, Low Cost, Easy Scalability, Long Transmission Distance, And Strong Anti-Interference Capabilities. It Has A Wide Range Of Applications In Large-Scale Temperature Multi-Point Monitoring Systems, Promising Extensive Prospects.

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