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DS18B20U+

ADIDS18B20U+

Analog Devices Inc./Maxim Integrated
Temperature Sensor Digital, Local -55°C ~ 125°C 12 b 8-uMAX/uSOP
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Overview

The DS18B20U+ is a digital thermometer that provides 12-bit temperature readings over a 1-Wire interface. It operates from a 3V to 5.5V supply and can measure temperatures from -55C to 125C. Its multidrop capability and parasite power option simplify wiring in distributed sensing applications.

Why Choose This Part

This sensor's 1-Wire interface minimizes the number of pins required for communication, making it ideal for designs with limited I/O. Its ability to be powered directly from the data line (parasite power) further reduces wiring complexity. User-programmable resolution from 9 to 12 bits allows optimization between conversion time and measurement precision.

Applications

Thermostatic Controls
Precisely monitor and control temperatures in HVAC systems, refrigeration units, or environmental chambers.
Industrial Systems
Implement distributed temperature sensing in industrial process control, machinery monitoring, and remote equipment.
Consumer Products
Integrate accurate temperature measurement into home appliances, weather stations, and smart home devices.
Data Loggers
Create systems for recording temperature data over time, with multiple sensors connected on a single bus.

Key Specifications

Features Output Switch, Programmable Limit, Programmable Resolution
Resolution 12 b
Output Type 1-Wire
Sensor Type Digital, Local
Mounting Type Surface Mount
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Test Condition -10degC ~ 85degC (-55degC ~ 125degC)
Voltage - Supply 3V ~ 5.5V
Operating Temperature -55degC ~ 125degC
Supplier Device Package 8-uMAX/uSOP
Accuracy - Highest (Lowest) +/-0.5degC (+/-2degC)
Sensing Temperature - Local -55degC ~ 125degC

Getting Started

To get started, connect the DS18B20U+ to a microcontroller supporting the 1-Wire protocol. Numerous libraries are available for platforms like Arduino and Raspberry Pi to simplify reading temperature data. Ensure proper pull-up resistor selection for the 1-Wire bus.

Also Consider

TMP36 Analog Devices Inc./Analog Devices - This is an analog temperature sensor providing a voltage output proportional to temperature, suitable for simpler ADC interfaces.
SHT31 Sensirion - This sensor offers both temperature and humidity sensing with an I2C interface, providing more environmental data.

Categories

Sensors > Temperature Sensors Industrial & Automation > Industrial Sensors & Instrumentation