DS1822+T&R - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

DS1822+T&R

Manufacturer

Maxim Integrated

Introduction

The DS1822 is a programmable, digital thermometer that provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with user-definable upper and lower trigger points.

Product Features and Performance

Provides digital temperature measurements from -55°C to +125°C

Measures temperatures with an accuracy of ±2°C from -10°C to +85°C and ±3°C from -55°C to +125°C

Has a digital output that is calibrated in degrees Celsius

Communicates over a 1-Wire interface

Requires no external components

Measures temperature with 9-bit to 12-bit precision

Alarm function with user-definable upper and lower trigger points

Parasitic power mode requires only 2 pins

Pulse width modulated temperature data

Responds to standard 1-Wire communication commands

Product Advantages

High accuracy and wide temperature range

Programmable alarm function

Requires only 2 pins for communication and power

Simple 1-Wire interface

Key Technical Parameters

Supply Voltage: 3V to 5.5V

Operating Temperature: -55°C to +125°C

Resolution: 11-bit

Accuracy: ±2°C (-10°C to +85°C), ±3°C (-55°C to +125°C)

Sensor Type: Digital, Local

Output Type: 1-Wire

Mounting Type: Through Hole

Quality and Safety Features

RoHS3 compliant

Tape & Reel packaging

Compatibility

The DS1822 is compatible with a wide range of microcontrollers and processors that support the 1-Wire interface.

Application Areas

Industrial and commercial temperature monitoring

HVAC systems

Appliances

Consumer electronics

Automotive

Product Lifecycle

The DS1822 is an active product and is currently in production. Maxim Integrated offers replacement and upgrade options for this product.

Key Reasons to Choose This Product

High accuracy over a wide temperature range

Programmable alarm function for monitoring temperature thresholds

Simple 2-pin interface for easy integration

Low power consumption and parasitic power mode

RoHS3 compliance for use in a variety of applications

Wide compatibility with microcontrollers and processors