DS1822Z+

DS1822 is a digital thermometer. It provides 9bit to 12bit centigrade temperature measurements and has an alarm function with NV user-programmable upper and lower trigger points. It communicates over a 1-wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. In addition, this device can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply. It has a unique 64-bit serial code, which allows multiple devices to function on the 1-wire bus; thus, it is simple to use one microprocessor to control many devices distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment or machinery, and process monitoring and control systems.

• Power-supply range from 3V to 5.5V, requires no external components
• Reduced component count with integrated temperature sensor and interface
• Thermometer resolution is user-selectable from 9 to 12bits
• Converts temperature to 12bit digital word in 750ms (max)
• Each device has a unique 64-bit serial code stored in an on-board device
• Software compatible with the DS18B20, ±2°C accuracy from -10°C to +85°C
• Operating temperature range from -55°C to +125°C
• Package style is 8-pin SOIC

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party