Maxim Integrated

DS18B20+T&R

Sensors

Manufacturer
MPN
DS18B20+T&R
Product Type
Package / Case
TO-92
Key Attributes
Programmable Resolution 1-Wire Digital Thermometer

Technical Specifications

TypeDescription
Operating Temperature-
Supply Voltage3V~5.5V
InterfaceSingle bus
FeaturesConfigurable temperature output;Temperature threshold monitoring;On-chip non-volatile parameter storage
Detection Temperature Range-55°C~+125°C
TypeDescription
Tolerance±0.5°C
Standby Current1uA
Temperature Conversion Time750ms
Temperature Resolution12 bit
Package / CaseTO-92

Product Introduction

The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with nonvolatile user programmable upper and lower trigger points. The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. In addition, the DS18B20 can derive power directly from the data line ("parasite power"), eliminating the need for an external power supply.

Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many DS18B20s distributed over a large area.

Features

  • Unique 1-Wire Interface Requires Only One Port Pin for Communication
  • Reduce Component Count with Integrated Temperature Sensor and EEPROM
  • Measures Temperatures from -55℃ to +125℃ (-67°F to +257°F)
  • ±0.5℃ Accuracy from -10℃ to +85℃
  • Programmable Resolution from 9 Bits to 12 Bits
  • No External Components Required
  • Parasitic Power Mode Requires Only 2 Pins for Operation (DQ and GND)
  • Simplifies Distributed Temperature-Sensing Applications with Multidrop Capability
  • Each Device Has a Unique 64-bit Serial Code Stored in On-Board ROM
  • Flexible User-Definable Nonvolatile (NV) Alarm Settings with Alarm Search Command
  • Identifies Devices with Temperatures Outside Programed Limits
  • Available in 8-Pin SO (150 mils), 8-Pin sSOP, and 3-Pin TO-92 Packages

Applications

  • Thermostatic Controls
  • Industrial Systems
  • Consumer Products
  • Thermometers
  • Thermally Sensitive Systems

Datasheet

📄 Open Download

Alternative Parts

Common DS18B20+T&R alternatives overseas buyers search for:

Compliance & Export Codes

TypeDetails
RoHSROHS
ECCNEAR99
CNHTS9025191010
USHTS9025194000
TARIC9025190010
TypeDetails
CAHTS9025190011
BRHTS90251910
INHTS90251910
MXHTS9025.19.01

Sourcing Information

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