DS18B20Z +T&R Detailed explanation of pin function specifications and circuit principle instructions（69 ）
The DS18B20 Z+T&R is a temperature Sensor from Texas Instruments (TI), specifically the DS18B20 model. It is a digital thermometer that provides a precise temperature measurement in Celsius or Fahrenheit and uses the 1-Wire Communication protocol.
1. Package Type & Pin Function Description:
The DS18B20Z+T&R is typically provided in a TO-92 package (three-lead, small, plastic package) or other variations like SOIC-8 or TO-220 depending on your specific version. Here's the detailed breakdown of the pin functions:
Pinout for TO-92 Package (3 Pins): Pin Number Pin Name Pin Function 1 VDD Power Supply (3.0V to 5.5V) 2 Data Data Line (1-Wire Communication) 3 GND Ground (0V) TO-92 Package Pinout Explanation: Pin 1: VDD (Power Supply): This is the positive voltage supply pin. The DS18B20 sensor operates within a voltage range of 3.0V to 5.5V, and this pin should be connected to the positive supply voltage. The DS18B20 will be powered from this pin, and any operation like temperature sensing will draw power from here. It's important to ensure a stable and appropriate supply voltage to ensure accurate readings. Pin 2: Data: This is the 1-Wire data pin where communication happens with the microcontroller or other devices. This pin is bidirectional and is used to send and receive data using the 1-Wire communication protocol. To communicate with the DS18B20, you'll send commands and read results through this pin. A pull-up resistor (typically 4.7kΩ) should be connected between the data pin and VDD to ensure proper data transmission. Pin 3: GND (Ground): This pin is used to complete the circuit by providing a reference ground. It should be connected to the ground (0V) of the power source.2. Detailed Pin Function Table:
Pin Number Pin Name Pin Function 1 VDD Provides power to the DS18B20. Should be connected to a 3.0V to 5.5V power source. 2 Data 1-Wire data communication pin. Used to send commands and receive data from the sensor. A pull-up resistor is required. 3 GND Ground pin. Connects to the common ground of the circuit.3. FAQ on DS18B20Z+T&R (Temperature Sensor)
1. What is the operating voltage range of the DS18B20Z+T&R? The DS18B20Z+T&R operates within a voltage range of 3.0V to 5.5V. 2. How is the DS18B20Z+T&R powered? It is powered through the VDD pin (Pin 1) and can be supplied by any voltage within the range of 3.0V to 5.5V. 3. How does the DS18B20Z+T&R communicate with other devices? The DS18B20Z+T&R uses 1-Wire communication through the Data pin (Pin 2) to send and receive data. 4. Is there a need for a pull-up resistor? Yes, a 4.7kΩ pull-up resistor should be connected between the Data pin and the VDD pin for proper data transmission. 5. Can the DS18B20Z+T&R work with microcontrollers? Yes, it is designed to work with microcontrollers like Arduino, Raspberry Pi, or any device that supports 1-Wire communication. 6. What is the temperature measurement range of the DS18B20Z+T&R? The DS18B20Z+T&R can measure temperatures from -55°C to +125°C with a ±0.5°C accuracy between -10°C to +85°C. 7. What type of output does the DS18B20Z+T&R provide? The output is digital and can be read as 9-12 bit resolution temperature values. 8. How can I convert the DS18B20Z+T&R's output to a human-readable temperature? The temperature data is a 16-bit number that can be converted to Celsius or Fahrenheit using simple mathematical formulas in your code. 9. Can I use multiple DS18B20Z+T&R sensors on the same bus? Yes, since the DS18B20Z+T&R uses 1-Wire protocol, multiple sensors can be connected to the same data line, and each sensor has a unique serial number for identification. 10. Is it possible to power the DS18B20Z+T&R using parasitic power? Yes, the DS18B20Z+T&R supports parasitic power mode, where it can be powered through the data line itself without needing an external VDD connection, but this is limited by the current draw. 11. How long does it take to take a temperature measurement? It typically takes about 750ms to 1 second for the DS18B20Z+T&R to take a temperature measurement, depending on the resolution set. 12. Can the DS18B20Z+T&R measure negative temperatures? Yes, the DS18B20Z+T&R can measure temperatures from -55°C to +125°C. 13. How do I configure the resolution of the DS18B20Z+T&R? The resolution can be configured via the 1-Wire communication protocol by writing specific data to the sensor's control register. 14. What is the accuracy of the DS18B20Z+T&R? The DS18B20Z+T&R offers an accuracy of ±0.5°C for temperatures between -10°C and +85°C. 15. What is the maximum number of DS18B20Z+T&R sensors that can be connected on the same data line? You can connect multiple DS18B20Z+T&R sensors on the same 1-Wire bus. The maximum depends on factors like bus capacitance, cable length, and data rate. 16. What is the role of the GND pin on the DS18B20Z+T&R? The GND pin (Pin 3) provides the reference ground for the sensor and should be connected to the ground of the circuit. 17. Can I use the DS18B20Z+T&R for high-precision temperature measurements? Yes, the DS18B20Z+T&R can be configured for high-resolution readings (up to 12 bits). 18. Is the DS18B20Z+T&R waterproof? The standard version is not waterproof. For waterproof applications, you would need to use the DS18B20 in a waterproof casing or probe. 19. How do I reset the DS18B20Z+T&R? The DS18B20Z+T&R can be reset using the 1-Wire reset command during the communication process. 20. How do I read the temperature from the DS18B20Z+T&R? You send the Read Scratchpad command through the 1-Wire interface to read the current temperature from the sensor.Conclusion:
The DS18B20Z+T&R is a highly versatile and popular digital temperature sensor from Texas Instruments. With a simple 3-pin configuration (VDD, Data, GND), it can easily integrate into various applications requiring temperature sensing. The extensive FAQs and pinout description should guide you in using and troubleshooting the sensor in different environments.
