The DS1722U Digital Thermometer and Thermostat with SPI/3-Wire Interface provides temperature readings which indicate the temperature of the device. No additional components are required; the device is truly a temperature-to-digital converter. Temperature readings are communicated from the DS1722U over a Motorola SPI interface or a standard 3-wire serial interface. The choice of interface standard is selectable by the user. For applications that require greater temperature resolution, the user can adjust the readout resolution from 8 to 12 bits. This is particularly useful in applications where thermal runaway conditions must be detected quickly. For application flexibility, the DS1722U features a wide analog supply rail of 2.65V - 5.5V. A separate digital supply allows a range of 1.8V to 5.5V. The DS1722U is available in an 8-pin SO (150mil) and 8-pin μMAX package. Applications for the DS1722U include personal computers/servers/workstations, cellular telephones, office equipment, or any thermally-sensitive system.
Feature
- Temperature Measurements Require No External Components
- Measures Temperatures from -55°C to +120°C. Fahrenheit Equivalent is -67°F to +248°F
- Thermometer Accuracy is ±2.0°C
- Thermometer Resolution is Configurable from 8 to 12 bits (1.0°C to 0.0625°C Resolution)
- Data is Read From/Written to Via a Motorola Serial Peripheral Interface (SPI) or Standard 3-Wire Serial Interface
- Wide Analog Power Supply Range (2.65V - 5.5V)
- Separate Digital Supply Allows for 1.8V Logic
- Available in an 8-Pin SO (150mil) and 8-Pin μMAX package
Applications
- Cell Phone Base Stations
- Computer Peripherals
- Networking
- Telecommunications
- Test Systems
