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MAXIM DS1822Z+T&R

Manufacturer
MPN
DS1822Z+T&R
LCSC Part #
C3663349
Packaging
SOIC-8
Customer #
Key Attributes
Econo 1-Wire Digital Thermometer
DatasheetMAXIM DS1822Z+T&R
RoHS Compliance1 documents available
Alternative Parts5
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement

Products Specifications

All
TypeDescription
CategorySensors, Transducers/Temperature Sensors/Analog and Digital Output
ManufacturerMAXIM
PackagingSOIC-8
Operating Temperature-
Detection Temperature Range-55℃~+125℃
Voltage - Supply3V~5.5V
Interface1-Wire Bus
Tolerance±2℃
Standby Current-
Temperature Conversion Time750ms
FeaturesTemperature threshold monitoring;Low-power standby;Configurable temperature output;On-chip non-volatile parameter storage
Temperature Resolution12bit

Introduction

AI Translation

The DS1822 digital thermometer provides 9- to 12-bit centigrade temperature measurements and has an alarm function with NV user-programmable upper and lower trigger points. The DS1822 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. It has an operating temperature range of -55℃ to +125℃ and is accurate to ±2.0℃ over the range of -10℃ to +85℃. In addition, the DS1822 can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply. Each DS1822 has a unique 64-bit serial code, which allows multiple DS1822s to function on the 1-Wire bus; thus, it is simple to use one microprocessor to control many DS1822s distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment or machinery, and process monitoring and control systems.

Features

AI Translation
  • Unique 1-Wire Interface Requires Only One Port Pin for Communications
  • Can Be Powered from Data Line
  • Power-Supply Range is 3.0V to 5.5V
  • Reduced Component Count with Integrated Temperature Sensor and Interface
  • Requires No External Components
  • Measures temperatures from -55℃ to +125℃ (-67°F to +257°F)
  • ±2.0℃ Accuracy from -10℃ to +85℃
  • Thermometer Resolution is User-Selectable from 9 to 12 Bits
  • Converts Temperature to 12-Bit Digital Word in 750ms (max)
  • Simplifies Distributed Temperature Sensing with Multidrop Capability Each Device Has a Unique 64-Bit Serial Code Stored in an On-Board Device
  • Flexible, User-Definable Nonvolatile (NV) Alarm Settings with Alarm Search Command Identifies Devices with Temperatures Outside Programmed Limits
  • Software compatible with the DS18B20

Applications

AI Translation
  • Thermostatic Controls
  • Industrial Systems
  • Consumer Products
  • Thermometers
  • Any Thermally Sensitive System
  • HVAC environmental controls
  • Temperature monitoring systems inside buildings, equipment or machinery
  • Process monitoring and control systems