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DS18B20U+T&R
+Lista de MateriaisSENSOR DIGITAL -55C-125C 8UMAX
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FabricanteAnalog Devices Inc./Maxim Integrated
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Peça do Fabricante #DS18B20U+T&R
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Pacote TSSOP-8
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Em Estoque4912
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Especificações
| Atributo | Valor |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Sensor Type | Digital, Local |
| Sensing Temperature - Local | -55°C ~ 125°C |
| Output Type | 1-Wire® |
| Voltage - Supply | 3V ~ 5.5V |
| Resolution | 12 b |
| Features | Output Switch, Programmable Limit, Programmable Resolution |
| Accuracy - Highest(Lowest) | ±0.5°C (±2°C) |
| Test Condition | -10°C ~ 85°C (-55°C ~ 125°C) |
| Operating Temperature | -55°C ~ 125°C |
| Mounting Type | Surface Mount |
Visão Geral
Description
A key feature is its 1-Wire communication interface, allowing multiple devices to be connected on a single data line, simplifying circuit complexity. Each DS18B20U+T&R has a unique 64-bit serial code, enabling multiple sensors to function on the same bus without interference. It supports three user-selectable resolution settings (9 to 12 bits) and can derive power directly from the data line ("parasite power"), eliminating the need for a dedicated power supply.
Ideal for applications where space and power efficiency are critical, the DS18B20U+T&R is suitable for use in consumer electronics, industrial systems, and environmental monitoring.
Equivalent
1. DHT22: A widely used digital temperature and humidity sensor.
2. LM35: An analog temperature sensor with a linear output.
3. TMP36: Another analog sensor known for its low voltage operation.
4. BME280: A sensor that measures temperature, humidity, and pressure.
5. AM2302: Similar to DHT22, also measuring temperature and humidity.
These alternatives may vary in interface, accuracy, and additional features.
Features
1. Digital Output: Provides temperature readings in digital format, requiring no external components for measurements.
2. Wide Temperature Range: Measures temperatures from -55°C to +125°C with an accuracy of ±0.5°C in the range of -10°C to +85°C.
3. One-Wire Interface: Utilizes a single data line for communication, simplifying connections and reducing wiring complexity.
4. Programmable Resolution: Allows user-selectable resolution from 9 to 12 bits, balancing speed and precision.
5. Unique 64-bit Serial Code: Ensures multiple devices can be connected on the same bus without conflict.
6. Low Power Consumption: Can be powered from the data line or an external supply, ideal for battery-operated systems.
7. Compact Package: Available in a small form factor, suitable for space-constrained applications.
8. Applications: Commonly used in consumer electronics, HVAC systems, and any application requiring accurate temperature measurements.
These features make the DS18B20U+T&R versatile and widely used in various temperature sensing applications.
Pinout
### Pin Count and Functions:
1. VDD (Pin 1): Supply Voltage. Provides power to the sensor.
2. GND (Pin 2): Ground. Connects the sensor to the system ground.
3. DQ (Pin 3): Data Input/Output. This pin is used for two-way data communication. It operates on a 1-Wire protocol, allowing both data and power to be supplied through a single wire.
4. NC (Pin 4-6): Not connected on some variants or reserved for special functions.
The DS18B20U+T&R sensor offers high-accuracy temperature readings from -55°C to +125°C with an accuracy of ±0.5°C in most of the range. It supports both parasitic and external power modes. The "T&R" designation refers to Tape & Reel packaging, which is commonly used for automated assembly processes.