DS1621 The Analog Devices DS1621 is a digital temperature sensor with a wide operating range of -55°C to 125°C. It features a 9-bit resolution and communicates via an I²C interface.
Mfr Part #:

DS1621

Available from 2 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices DS1621 is a digital temperature sensor with a wide operating range of -55°C to 125°C. It features a 9-bit resolution and communicates via an I²C interface.
Total Stock: 6,312 pcs
$ Price Range: $1.50

DS1621 Available from 2 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
3,362 pcs
3362 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,950 pcs
2950 pcs On Request 1 On Request On Request 18+ On Request On Request

DS1621 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Accuracy
Features
Interface Type
Lead Spacing
Mounting Type
Operating Temperature
Output Type
Resolution
Sensing Temperature
Sensor Type
Supplier Device Package
Supplier Package
Test Condition
Voltage
accuracy (Minimum/Maximum @ 0 °C ~ 70 °C)

DS1621 Description

Short technical summary and product information.

The DS1621 from Analog Devices is a digital thermometer and thermostat that provides precise temperature readings. It measures temperatures from -55°C to +125°C with an accuracy of ±0.5°C within the 0°C to 70°C range. The device offers a 9-bit resolution, converting temperature to a digital word in less than one second.

 

Designed for versatility, the DS1621 operates within a power supply range of 2.7V to 5.5V and utilizes a 2-wire serial interface for data communication. Its thermostat function allows for user-definable temperature settings stored in nonvolatile memory, with an active output signal (TOUT) that triggers when the temperature exceeds a user-defined threshold (TH) and resets when it drops below another threshold (TL), enabling hysteresis.

 

This sensor requires no external components for temperature measurements, saving valuable board space. It is available in an 8-pin DIP package, suitable for through-hole mounting. The DS1621 is well-suited for applications such as thermostatic controls, industrial systems, consumer products, and thermometers.

DS1621 Quick Information

Product Type: Digital Temperature Sensor
Canonical Name: DS1621 Digital Thermometer and Thermostat
Subcategory: Digital Temperature Sensor

DS1621 Compliance

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

DS1621 Estimated Pricing

Qty Low High
1+ $1.50 $1.50

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

DS1621 Features

  • Measures temperatures from -55°C to 125°C.
  • Provides 9-bit temperature readings.
  • Operates from a 2.7V to 5.5V supply.
  • Uses a 2-wire serial interface.
  • Available in an 8-pin DIP package.

DS1621 Applications

  • Ideal for thermostatic controls.
  • Suitable for industrial systems.
  • Used in consumer products.
  • Applicable for thermometers.

DS1621 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the DS1621?

The DS1621 operates from -55°C to 125°C.

What is the accuracy of the DS1621 temperature sensor?

The accuracy is ±0.5°C from 0°C to 70°C and ±2°C from -55°C to 125°C.

What voltage range does the DS1621 operate within?

The DS1621 operates within a voltage range of 2.7V to 5.5V.

What is the resolution of the DS1621?

The DS1621 has a resolution of 9 bits.

How does the DS1621 communicate temperature data?

The DS1621 communicates temperature data via a 2-wire serial interface.

What package type is the DS1621 available in?

The DS1621 is available in an 8-pin DIP package.

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