Overview
The DS18B20Z+T&R is a digital temperature sensor produced by Maxim Integrated, a subsidiary of Analog Devices Inc. This sensor is designed to provide accurate temperature measurements over a wide operating temperature range. It features a programmable resolution and alarm thresholds, making it versatile for various applications. The DS18B20Z+T&R operates using Maxim's exclusive 1-Wire bus protocol, which allows for simple communication with a microcontroller using only one data line and ground.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Maxim Integrated (Analog Devices Inc.) |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Supply Voltage | 3V to 5.5V |
| Operating Temperature Range | -55°C to 125°C |
| Accuracy | ±0.5°C (-10°C to 85°C), ±2°C (-55°C to 125°C) |
| Resolution | Programmable: 9-bit to 12-bit |
| Output Type | 1-Wire |
| Sensor Type | Digital, Local |
| Mounting Type | Surface Mount |
| Unique Identifier | 64-bit serial code stored in ROM |
Key Features
- Programmable resolution from 9 to 12 bits for optimizing power consumption and measurement resolution.
- Programmable temperature alarm thresholds with non-volatile user-programmable upper and lower trigger points.
- Parasitic power mode allows operation with only 2 wires, eliminating the need for an external power supply.
- 1-Wire interface for simple connection to a microcontroller.
- High accuracy across a wide temperature range.
- Each device has a unique 64-bit serial code, enabling multiple devices to function on the same 1-Wire bus.
- RoHS3 compliant and available in tape and reel packaging for surface mount assembly.
Applications
- Industrial and consumer electronics.
- HVAC systems.
- Appliances.
- Automotive applications.
- Temperature monitoring systems inside buildings, equipment, or machinery.
- Process monitoring and control systems.
Q & A
- What is the operating temperature range of the DS18B20Z+T&R?
The DS18B20Z+T&R operates over a temperature range of -55°C to 125°C. - What is the accuracy of the DS18B20Z+T&R?
The accuracy is ±0.5°C over the temperature range of -10°C to 85°C, and ±2°C over the full -55°C to 125°C range. - What is the resolution of the DS18B20Z+T&R?
The resolution is programmable from 9-bit to 12-bit. - Does the DS18B20Z+T&R require an external power supply?
No, it can operate in parasitic power mode using only the data line. - How does the DS18B20Z+T&R communicate with a microcontroller?
It communicates over a 1-Wire bus that requires only one data line and ground. - Can multiple DS18B20Z+T&R devices be used on the same bus?
Yes, each device has a unique 64-bit serial code, allowing multiple devices to function on the same 1-Wire bus. - What are the programmable features of the DS18B20Z+T&R?
The device has programmable resolution and temperature alarm thresholds. - Is the DS18B20Z+T&R RoHS compliant?
Yes, it is RoHS3 compliant. - What is the package type of the DS18B20Z+T&R?
The package type is 8-SOIC. - What are some common applications of the DS18B20Z+T&R?
Common applications include HVAC systems, appliances, automotive applications, and process monitoring and control systems.
