DS1631, DS1631A：High-Precision Digital Thermometer and Thermostat
High-Precision Digital Thermometers and Thermostats Provide 9, 10, 11, or 12-Bit Temperature Readings Over a -55°C to +125°C Range
The DS1631, DS1631A, and DS1731 digital thermometers provide 9, 10, 11, or 12-bit temperature readings over a -55°C to +125°C range. The DS1631 and DS1631A thermometer accuracy is ±0.5°C from 0°C to +70°C with 3.0V ≤ VDD ≤ 5.5V, and the DS1731 accuracy is ±1°C from -10°C to +85°C with 3.0V ≤ VDD ≤ 5.5V. The thermostat on all three devices provides custom hysteresis with user-defined trip points (TH and TL). The TH and TL registers and thermometer configuration settings are stored in NV EEPROM so they can be programmed prior to installation. In addition, the DS1631A automatically begins taking temperature measurements at power-up, which allows it to function as a stand-alone thermostat.
Key Features
| DS1631, DS1631A, DS1731: Functional Diagram Applications/Uses
|
DataSheet
| title | Download file |
|---|---|
| DS1631-DS1731 Data Sheet | DS1631-DS1731.pdf |
Parametrics
| Part Number | Sensor Type | Interface | Channels | Accuracy (±°C) | Parasite Pwr. | Temp. Thresh. | Temp. Resolution (bits) | Multi Droppable | Oper. Temp. (°C) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|
| See Notes | |||||||||||
| DS1631 | Local | 2-Wire/I2C/SMBus | One | 0.5 | No | Programmable (NV) | 9 10 11 12 | Yes | -55 to +125 | µMAX/8 PDIP(N)/8 SOIC/8 SOIC(N)/8 | $1.94 @1k |
| DS1731 | 1 | µMAX/8 | $2.24 @500 | ||||||||
Quality and Environmental Data
Related Products
- DS1721：Digital Thermometer and Thermostat
Ordering Information
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|
| DS1631 | No Longer Available | DS1631+ | PDIP(N),;8 pin;79.7 mm² | -55°C to +125°C | No |
| DS1631+ | Active | PDIP(N),;8 pin;79.7 mm² | -55°C to +125°C | Lead Free | |
| DS1631AU | No Longer Available | DS1631AU+ | µMAX,;8 pin;15.6 mm² | -55°C to +125°C | No |
| DS1631AU+ | Active | µMAX,;8 pin;15.6 mm² | -55°C to +125°C | Lead Free | |
| DS1631AU+T&R | Active | µMAX,;8 pin;15.6 mm² | -55°C to +125°C | Lead Free | |
| DS1631AU/T&R | No Longer Available | DS1631AU+T&R | µMAX,;8 pin;15.6 mm² | -55°C to +125°C | No |
| DS1631S | No Longer Available | DS1631S+ | SOIC,;8 pin;44.1 mm² | -55°C to +125°C | No |
| DS1631S+ | Active | SOIC,;8 pin;44.1 mm² | -55°C to +125°C | Lead Free | |
| DS1631S+T&R | Active | SOIC,;8 pin;44.1 mm² | -55°C to +125°C | Lead Free | |
| DS1631S/T&R | No Longer Available | DS1631S+T&R | SOIC,;8 pin;44.1 mm² | -55°C to +125°C | No |
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
| DS1631U | No Longer Available | DS1631U+ | µMAX,;8 pin;15.6 mm² | -55°C to +125°C | No |
| DS1631U+ | Active | µMAX,;8 pin;15.6 mm² | -55°C to +125°C | Lead Free | |
| DS1631U+T&R | Active | µMAX,;8 pin;15.6 mm² | -55°C to +125°C | Lead Free | |
| DS1631U/T&R | No Longer Available | DS1631U+T&R | µMAX,;8 pin;15.6 mm² | -55°C to +125°C | No |
| DS1631Z | No Longer Available | DS1631Z+ | SOIC(N),;8 pin;30.9 mm² | -55°C to +125°C | No |
| DS1631Z+ | Active | SOIC(N),;8 pin;30.9 mm² | -55°C to +125°C | Lead Free | |
| DS1631Z+T&R | Active | SOIC(N),;8 pin;30.9 mm² | -55°C to +125°C | Lead Free | |
| DS1631Z/T&R | No Longer Available | DS1631Z+T&R | SOIC(N),;8 pin;30.9 mm² | -55°C to +125°C | No |
- DS1631-DS1731.pdf DS1731
- Understanding Multidrop Address Assignments for Thermal Sensors MAX7504
- Package Thermal Resistance Values (Theta JA, Theta JC) for Temperature Sensors and 1-Wire Devices MAX31826
- Curve Fitting the Error of a Bandgap-Based Digital Temperature Sensor MAX31820PAR
- Using the DS1631 Temperature Sensor in DS1621 Applications DS1631
- Interfacing to the DS1631 Digital Thermometer and Thermostat in a Microcontroller Environment DS1631
- DS1631.pdf DS1631
- DS1631-DS1731.pdf DS1731
