DS1621
PRODUCTIONDigital Thermometer and Thermostat
- Part Models
- 5
- 1ku List Price
- Starting From $3.18
Overview
- 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 (2-Byte Transfer)
- Converts Temperature to Digital Word in Less than 1s
- Thermostatic Settings are User Definable And Nonvolatile
- Can Be Used in a Wide Variety of Applications
- Power Supply Range (2.7V to 5.5V)
- Data is Read From/Written Via a 2-Wire Serial Interface (Open Drain I/O Lines)
- Saves Space
- Temperature Measurements Require No External Components
- 8-pin DIP or SO package (208-mil) Packages
The DS1621 Digital Thermometer and Thermostat provides 9-bit temperature readings, which indicate the temperature of the device. The thermal alarm output, TOUT is active when the temperature of the device exceeds a user-defined temperature TH. The output remains active until the temperature drops below user defined temperature TL, allowing for any hysteresis necessary. User-defined temperature settings are stored in nonvolatile memory so parts may be programmed prior to insertion in a system. Temperature settings and temperature readings are all communicated to/from the DS1621 over a simple 2-wire serial interface.
Applications
- Medical
- Networking
- Personal Computing
- Routers/Switches
- Test Measurement Systems
- Wireless Base Stations
Documentation
Data Sheet 1
Reliability Data 1
Application Note 1
Technical Articles 4
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. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| DS1621+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| DS1621S+ | Small-Outline IC, Narrow (0.15in) | ||
| DS1621S+T&R | Small-Outline IC, Narrow (0.15in) | ||
| DS1621V+ | Small-Outline IC (0.208in) | ||
| DS1621V+T&R | Small-Outline IC (0.208in) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 30, 2020 - 1702R2 ASSEMBLY |
||
| DS1621S+ | PRODUCTION | |
| DS1621S+T&R | PRODUCTION | |
|
Feb 26, 2025 - 2464 PIN/ERRATA |
||
| DS1621V+ | PRODUCTION | |
| DS1621V+T&R | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.