The DS1822+PAR from Maxim Integrated is a robust, programmable digital thermometer that provides temperature readings which indicate the temperature of the device. With its unique feature of parasitic power mode, it allows the device to draw power directly from the data line, minimizing the need for an external power supply and simplifying the design for systems where minimal wiring is a priority.

Key Features

• Temperature Range: The DS1822+PAR operates over a wide temperature range of -55°C to +125°C (-67°F to +257°F), providing versatility for various applications.
• Accuracy: It offers an accuracy of ±0.5°C from -10°C to +85°C, ensuring precise temperature measurements for critical applications.
• Resolution: The resolution of the thermometer can be set from 9 to 12 bits, allowing the user to optimize the device for the desired balance between resolution and conversion time.
• Parasitic Power Mode: The device supports operation in parasitic power mode, drawing power from the data line to minimize wiring and simplify hardware design.
• 1-Wire Interface: The DS1822+PAR communicates over a 1-Wire bus that requires only one data line (and ground) for communication with a central microprocessor. This reduces the complexity and cost of the system.
• Alarm Function: It features a programmable alarm function with nonvolatile user-defined upper and lower trigger points, making it ideal for temperature monitoring and control systems.

Applications

The DS1822+PAR is suitable for a wide range of applications, including but not limited to:

• Environmental controls and monitoring
• Industrial systems
• Consumer electronics
• Thermal management
• Data logging

Reliability and Support

Maxim Integrated is known for its commitment to quality and reliability, and the DS1822+PAR is no exception. It is designed to meet the stringent demands of modern electronics, ensuring a reliable performance over its lifetime. Additionally, Maxim provides comprehensive technical support for its products, ensuring that designers can integrate the DS1822+PAR into their systems with confidence.