DS18S20Z - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

DS18S20Z

Manufacturer

Maxim Integrated

Introduction

The DS18S20 is a digital thermometer that provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with non-volatile 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)

Accurate to ±0.5°C over the -10°C to +85°C range

Thermometer resolution is user-selectable from 9 to 12 bits

Alarm functions with user-programmable upper and lower trigger points

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

Requires no external components

Power supply range of 3.0V to 5.5V

Typical standby current is less than 1 μA

Parasitic power mode requires only 2 pins

Product Advantages

High accuracy and resolution

Wide temperature measurement range

Programmable alarm function

Requires minimal external components

Low power consumption

Simple 1-Wire bus communication

Key Technical Parameters

Voltage Supply: 3V ~ 5.5V

Operating Temperature: -55°C ~ 125°C

Test Condition: -10°C ~ 85°C (-55°C ~ 125°C)

Resolution: 9 bit

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

Sensor Type: Digital, Local

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

Quality and Safety Features

RoHS non-compliant

Packaged in 8-SOIC

Compatibility

The DS18S20 is compatible with the 1-Wire communication protocol and can be used with microcontrollers or other devices that support this protocol.

Application Areas

Temperature monitoring and control in various industrial, commercial, and consumer applications

Environmental monitoring

HVAC systems

Appliances

Healthcare equipment

Product Lifecycle

The DS18S20 is an established product and is not nearing discontinuation. Replacement and upgrade options are available.

Key Reasons to Choose This Product

High accuracy and resolution for precise temperature measurement

Wide operating temperature range suitable for diverse applications

Programmable alarm function for monitoring temperature thresholds

Simple 1-Wire bus communication requiring minimal external components

Low power consumption for battery-powered or energy-efficient designs

Proven reliability and long-term availability from a trusted manufacturer