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The DS18B20+T&R is a digital temperature sensor manufactured by MAXIM Integrated (now part of Analog Devices).

Specifications:

• Temperature Range: -55°C to +125°C
• Accuracy: ±0.5°C (from -10°C to +85°C)
• Resolution: User-selectable (9 to 12 bits, default 12-bit)
• Supply Voltage: 3.0V to 5.5V
• Communication Interface: 1-Wire® bus
• Current Consumption: 1mA (active), 750nA (standby)
• Package: TO-92 (3-pin)
• Operating Current: 1mA (typical)
• Conversion Time: 750ms (max at 12-bit resolution)
• Unique 64-bit Serial Code: Each device has a factory-programmed ROM ID

Descriptions:

The DS18B20 is a high-precision digital thermometer that communicates over a single-wire 1-Wire interface. It provides temperature readings in digital form, eliminating the need for external signal conditioning. The sensor is widely used in industrial, consumer, and embedded applications due to its compact size, low power consumption, and ease of integration.

Features:

• Programmable Resolution: 9 to 12 bits (0.5°C, 0.25°C, 0.125°C, 0.0625°C)
• No External Components Required
• Multi-Drop Capability: Multiple sensors can share a single 1-Wire bus
• Parasitic Power Mode: Can operate without an external power supply (using data line power)
• Alarm Function: Programmable high and low temperature thresholds
• TO-92 Package: Easy to mount and integrate
• Wide Voltage Range: 3.0V to 5.5V operation

The "T&R" suffix indicates that the part is supplied in Tape and Reel packaging for automated assembly.

(Note: MAXIM Integrated is now part of Analog Devices, but the DS18B20 continues to be available under the MAXIM brand.)