Maxim Integrated

DS18S20+

Sensors

Manufacturer
MPN
DS18S20+
Product Type
Package / Case
TO-92
Key Attributes
High-Precision 1-Wire Digital Thermometer

Technical Specifications

TypeDescription
Operating Temperature-
Supply Voltage3V~5.5V
InterfaceSingle bus
FeaturesTemperature 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 Resolution9 bit
Package / CaseTO-92

Product Introduction

The DS18S20 digital thermometer provides 9-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18S20 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 DS18S20 can derive power directly from the data line ("parasite power"), eliminating the need for an external power supply.

Each DS18S20 has a unique 64-bit serial code, which allows multiple DS18S20s to function on the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many DS18S20s 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

  • Unique 1-Wire Interface Requires Only One Port Pin for Communication
  • Maximize System Accuracy in Broad Range of Thermal Management Applications
  • Measures Temperatures from -55℃ to +125℃ (-67°F to +257°F)
  • ±0.5℃ Accuracy from -10℃ to +85℃
  • 9-Bit Resolution
  • No External Components Required
  • Parasite 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 Programmed Limits
  • Available in 8-Pin SO (150 mils) and 3-Pin TO-92 Packages

Applications

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

Datasheet

📄 Open Download

Alternative Parts

Common DS18S20+ 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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