DS1820 The Dallas Semiconductor DS1820 is a digital thermometer with a unique 1-Wire interface, allowing for simplified communication. It measures temperatures from -55°C to +125°C.
Mfr Part #:

DS1820

Available from 3 distributors
Mfr Name: Dallas Semiconductor
Dallas Semiconductor
The Dallas Semiconductor DS1820 is a digital thermometer with a unique 1-Wire interface, allowing for simplified communication. It measures temperatures from -55°C to +125°C.
Total Stock: 14,093 pcs
$ Price Range: $1.47

DS1820 Available from 3 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
14,028 pcs
14028 pcs On Request 1 On Request On Request 0345+ On Request On Request
Non-Authorised Inventory information
48 pcs
48 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
17 pcs
17 pcs On Request 1 On Request On Request On Request On Request On Request

DS1820 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Interface
Mounting Type
Resolution
Storage Temperature
Temperature Range

DS1820 Description

Short technical summary and product information.

The DS1820 from Dallas Semiconductor is a digital thermometer that provides 9-bit temperature readings. Its key feature is the unique 1-Wire interface, which requires only a single port pin for communication, simplifying system design and reducing component count. This interface also allows for multidrop capability, enabling distributed temperature sensing applications.

 

The device can measure temperatures ranging from -55°C to +125°C with a resolution of 0.5°C increments. It can be powered directly from the data line, eliminating the need for an external power source in many applications. The DS1820 also includes user-definable, nonvolatile temperature alarm settings.

 

Packaged in a TO-226-3 case, the DS1820 is suitable for through-hole mounting. Its applications include thermostatic controls, industrial systems, consumer products, and any thermally sensitive system requiring accurate temperature monitoring.

DS1820 Quick Information

Product Type: Digital Thermometer
Series: DS1820
Canonical Name: DS1820 1-Wire Digital Thermometer
Subcategory: Temperature Sensors

DS1820 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

DS1820 Estimated Pricing

Qty Low High
1+ $1.47 $1.47

Estimated market price range - modelled values for guidance only, not live distributor offers.

DS1820 Features

  • Unique 1-Wire interface for simplified communication.
  • Measures temperatures from -55°C to +125°C.
  • 9-bit digital temperature readings.
  • Can be powered directly from the data line.
  • TO-226-3 package for through-hole mounting.

DS1820 Applications

  • Thermostatic controls and monitoring.
  • Industrial system temperature sensing.
  • Consumer product temperature management.
  • HVAC environmental controls.
  • Process monitoring and control systems.

DS1820 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the DS1820?

The DS1820 measures temperatures from -55°C to +125°C.

What is the resolution of the DS1820 temperature sensor?

The DS1820 provides 9-bit digital temperature readings.

What type of interface does the DS1820 use?

The DS1820 uses a unique 1-Wire interface.

How is the DS1820 powered?

The DS1820 can be powered from the data line (parasitic power) or from an external 5V supply.

What package is the DS1820 available in?

The DS1820 is available in a TO-226-3 package.

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