DS18S20Z+ - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

DS18S20Z+

Manufacturer

Maxim Integrated

Introduction

The DS18S20 is a digital thermometer that provides 9-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The device communicates over a 1-Wire bus that by design requires only one data line (and ground) for communication with a central microprocessor.

Product Features and Performance

Measures temperatures from -55°C to +125°C (-67°F to +257°F) in 0.5°C increments

Unique 1-Wire interface requires only one port pin for communication

Parasite-powered, no external power supply needed

Alarm function with nonvolatile user-programmable upper and lower trigger points

Thermometer resolution is user-configurable from 9 to 12 bits

Converts temperature to 12-bit digital word in 750ms (max.)

Measures temperature with ±0.5°C accuracy from -10°C to +85°C

Measures temperature with ±2°C accuracy from -55°C to +125°C

Product Advantages

Easy to use and integrate with microcontrollers

Low power operation

Small size package

Wide temperature measurement range

Key Technical Parameters

Voltage Supply: 3V ~ 5.5V

Operating Temperature: -55°C ~ 125°C

Resolution: 9 b

Accuracy Highest (Lowest): ±0.5°C (±2°C)

Sensor Type: Digital, Local

Sensing Temperature Local: -55°C ~ 125°C

Quality and Safety Features

ROHS3 Compliant

8-SOIC package

Compatibility

The DS18S20 is compatible with various microcontrollers and systems that support the 1-Wire protocol.

Application Areas

Industrial and consumer temperature monitoring and control applications

HVAC systems

Appliances

Thermostats

Weather stations

Data loggers

Product Lifecycle

The DS18S20 is an actively supported product by Maxim Integrated. Replacements and upgrades are available.

Key Reasons to Choose This Product

Accurate temperature measurement across a wide temperature range

Easy to interface with microcontrollers using the 1-Wire protocol

Low power consumption and small package size

Programmable alarm function for temperature monitoring and control

Robust and reliable performance