DS18B20 Digital Temperature Sensor TO-92

DS18B20 Digital Temperature Sensor TO-92 The DS18B20 is a versatile, programmable resolution 1-Wire digital thermometer designed for precise temperature measurements in a wide range of applications. Housed in a rugged TO-92 package, this sensor provides 9-bit to 12-bit Celsius temperature readings from -55°C to +125°C (-67°F to +257°F) with an accuracy of ±0.5°C over the -10°C to +85°C range. Features: Unique 1-Wire Interface. Integrated Temperature Sensor and EEPROM. No External Components Needed. Parasite Power Mode. Multidrop Capability. Flexible Alarm Settings. Low Power Consumption. Specifications: Absolute Maximum Ratings Parameter Min Max Unit Voltage Range on Any Pin Relative to Ground -0.5 +6.0 V Operating Temperature Range -55 +125 °C Storage Temperature Range -55 +125 °C Solder Temperature Refer to IPC/JEDEC J-STD-020 – – DC Electrical Characteristics (VDD = 3.0V to 5.5V, -55°C to +125°C) Parameter Symbol Conditions Min Typ Max Units Supply Voltage V DD Local power 3.0 – 5.5 V Pullup Supply Voltage V PU Parasite power 3.0 – 5.5 V Local power 3.0 – V DD V Thermometer Error t ERR -10°C to +85°C – – ±0.5 °C -30°C to +100°C – – ±1 °C -55°C to +125°C – – ±2 °C Input Logic-Low V IL – -0.3 – +0.8 V Input Logic-High V IH Local power +2.2 – Min(5.5, V DD +0.3) V Parasite power +3.0 – – V Sink Current I L V IO = 0.4V 4.0 – – mA Standby Current I DDS – – – 1µA µA Active Current I DD V DD = 5V – 1 1.5 mA DQ Input Current I DQ – – – 5 µA Drift – – – – ±0.2 °C AC Electrical Characteristics Parameter Symbol Conditions Min Typ Max Units NV Write Cycle Time t WR – 2 – 10 ms EEPROM Writes N EEWR -55°C to +55°C 50k – – writes EEPROM Data Retention t EEDR -55°C to +55°C 10 – – years Pinout: Pin Name Function 1 GND Ground 2 DQ Data Input/Output. Open-drain 1-Wire interface pin. Also provides power in parasite mode. 3 V DD Optional V DD . Must be grounded for parasite power operation. Applications: Thermostatic controls for home and building automation. Industrial systems for process monitoring and machinery temperature sensing. Consumer products like digital thermometers and appliances. Thermally sensitive systems, such as medical devices or food storage. HVAC environmental controls. Equipment and building temperature monitoring. Package Contents: 1x DS18B20 Digital Temperature Sensor TO-92. Datasheet

The DS18B20 digital thermometer provides 9-bit to 12-bit temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18B20 communicates over a 1-Wire® bus that requires only one data line (and ground) for communication with microcontroller. In addition, the DS18B20 can derive power directly from the data line ("parasite power"), eliminating the need for an external power supply. Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1-Wire bus. Thus, it is simple to use one microcontroller to control many DS18B20s distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery. Features Unique 1-Wire® interface requires only one port pin for communication Each device has a unique 64-bit serial code stored in an onboard ROM Can be powered from data line. Power supply range is 3.0V to 5.5V Measures temperatures from –55°C to +125°C Thermometer resolution is user-selectable from 9 to 12 bits User-definable nonvolatile (NV) alarm settings with Alarm search command identifies devices whose temperature is outside of programmed limits. The DS18B20 DataSheet For Temperature Sensor Arduino Tutorial, please click here For Temperature Sensor Raspberry Pi tutorial, please click here The Arduino Site: "1-Wire" information HOW-TO Connect several DS18B20 on same wires

1. Overview The DS18B20 is a digital thermometer providing 9- to 12-bit temperature readings directly through a 1-Wire digital interface , meaning only one data pin (plus ground and VDD) is required to communicate with the microcontroller. It includes an internal 64-bit serial code, allowing multiple sensors to operate on the same bus. 2. Features Digital output with 1-Wire communication Temperature range: –55 °C to +125 °C Accuracy: ±0.5 °C (–10 °C to +85 °C) Resolution selectable from 9 to 12 bits Unique 64-bit serial code per device Power supply: 3.0 V to 5.5 V Supports parasite power (2-wire operation mode) 3. Applications Environmental monitoring systems Smart home and HVAC control Industrial and agricultural temperature sensing Embedded and IoT devices Battery management and thermal protection circuits 4. Electrical Characteristics Parameter Value Notes Operating Voltage 3.0 V – 5.5 V Standard TTL range Temperature Range –55 °C – +125 °C Full range Accuracy ±0.5 °C (–10 °C – +85 °C) Typical Resolution 9 – 12 bits Configurable Interface 1-Wire Digital Single data line Current Consumption ≤ 1 mA during conversion Low-power 5. Mechanical Information Package: TO-92 (standard plastic body) 3 pins: GND, Data, VDD Dimensions: ~4.0 mm × 4.0 mm × 5.0 mm (typical) Compatible with breadboards and sensor cables Arabic Section العنوان حساس درجة الحرارة الرقمي DS18B20 (واجهة 1-Wire) 1. نظرة عامة يُعد DS18B20 حساس حرارة رقمي يوفر قراءات دقيقة بدرجة دقة من 9 إلى 12 بت عبر واجهة بيانات واحدة (1-Wire). يمكن توصيل عدة حساسات على نفس الخط بفضل الرمز التسلسلي الفريد لكل وحدة (64-bit). 2. المميزات خرج رقمي عبر واجهة 1-Wire مدى قياس من ‎–55 °C‎ إلى ‎+125 °C‎ دقة ±0.5 °C بين ‎–10 °C‎ و‎+85 °C‎ دقة قابلة للتحديد من 9 إلى 12 بت رمز تسلسلي فريد لكل حساس جهد تشغيل من ‎3.0 V‎ إلى ‎5.5 V‎ يدعم وضع التشغيل بطريقتين (تغذية عادية أو Parasite Power) 3. الاستخدامات أنظمة مراقبة البيئة تحكم المنازل الذكية وأنظمة التدفئة والتبريد مشاريع الزراعة الذكية والصناعية أجهزة إنترنت الأشياء والأنظمة المدمجة مراقبة البطاريات والدوائر الحرارية 4. الخصائص الكهربائية الخاصية القيمة ملاحظات جهد التشغيل ‎3.0 V – 5.5 V‎ متوافق مع TTL مدى درجة الحرارة ‎–55 °C – +125 °C‎ كامل النطاق الدقة ±0.5 °C (‎–10 °C – +85 °C‎) نموذجي الدقة الداخلية ‎9 – 12 بت‎ قابلة للتغيير الواجهة 1-Wire رقمية سلك بيانات واحد التيار أثناء التحويل ≤ 1 mA منخفض جدًا 5. المعلومات الميكانيكية التغليف: TO-92 3 أطراف: GND، Data، VDD الأبعاد التقريبية: ‎4×4×5 مم‎ مناسب للتركيب على لوحات التجارب أو في أسلاك الاستشعار

DS18B20 -Digital Temperature Sensor is a high-quality electronic component designed for Arduino, prototyping, and educational electronics. Programmable Resolution 1-Wire® Digital Thermometer. It’s perfect for DIY makers, students, and anyone building custom electronic circuits or STEM kits.

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