-
DS1620: Digital Thermometer and Thermostat Data Sheet (Rev. 3)4/6/2015PDF445K
Overview
Features and Benefits
- Simply Adds Temperature Monitoring and Control to Any System
- Measures Temperatures From -55°C to +125°C in 0.5°C Increments; Fahrenheit Equivalent is -67°F to +257°F in 0.9°F Increments
- Temperature is Read as a 9-Bit Value
- Converts Temperature to Digital Word in 750ms (max)
- Thermostatic Settings are User-Definable and Nonvolatile
- Can Be Used in a Wide Variety of Applications
- Supply Voltage Range Covers From 2.7V to 5.5V
- Data is Read From/Written Via a 3-Wire Serial Interface (CLK, DQ, Active-Low RST )
- Saves Space
- Requires No External Components
- 8-Pin DIP or SOIC (208-mil) Packages
Product Details
The DS1620 Digital Thermometer and Thermostat provides 9-bit temperature readings which indicate the temperature of the device. With three thermal alarm outputs, the DS1620 can also act as a thermostat. THIGH is driven high if the DS1620's temperature is greater than or equal to a user-defined temperature TH. TLOW is driven high if the DS1620's temperature is less than or equal to a user-defined temperature TL. TCOM is driven high when the temperature exceeds TH and stays high until the temperature falls below that of TL.
User-defined temperature settings are stored in nonvolatile memory, so parts can be programmed prior to insertion in a system, as well as used in standalone applications without a CPU. Temperature settings and temperature readings are all communicated to/from the DS1620 over a simple 3-wire interface.
Applications
- Consumer Products
- Industrial Systems
- Thermometers
- Thermostatic Controls
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
-
DS1620 Reliability Data1/12/2023PDF17K
-
Thermal Management Handbook5/4/2010
-
Package Thermal Resistance Values (Theta JA, Theta JC) for Temperature Sensors and 1-Wire Devices11/16/2006
-
Microcontrollers Improve Power Efficiency of 8051-Based Designs10/21/2002
-
Interfacing the DS1620 with a DS5000/8051 Microcontroller9/30/2002
-
Interfacing the DS1620 to the Motorola SPI Bus6/1/2001
Tools & Simulations
IBIS Models
IBS
DS1620 IBIS Model
317.34K
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Support & Discussions
DS1620 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Sampling
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.