DS1820 Digital Thermometer: Pinout, Datasheet and Comparison
Bulk Digital, Local 3V~5.5V Through Hole -55°C~125°C 1-Wire® ±0.5°C (±2°C) 7 b 1 (Unlimited)









Bulk Digital, Local 3V~5.5V Through Hole -55°C~125°C 1-Wire® ±0.5°C (±2°C) 7 b 1 (Unlimited)
The DS18S20 digital thermometer provides 9-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. This article enforces datasheet, pinout, features, applications, and other details about DS1820.

1-WIRE DS18B20 TEMPERATURE SENSOR - Arduino tutorial #6
DS1820 Pinout

What is DS1820?
The DS1820 is a 1-wire programmable Temperature sensor from maxim integrated. It is widely used to measure temperature in hard environments like in chemical solutions, mines or soil, etc. It can measure a wide range of temperature from -55°C to +125° with a decent accuracy of ±5°C.
What does DS1820 look like?
Symbol

Footprint

How does DS1820 work?

Specifications
- TypeParameter
- Mount
In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.
Wire - Mounting Type
The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.
Through Hole - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
TO-226-3, TO-92-3 (TO-226AA) - Test Conditions-10°C ~ 85°C (-55°C ~ 125°C)
- Operating Temperature
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
-55°C~125°C - Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Bulk - Published2004
- JESD-609 Code
The "JESD-609 Code" in electronic components refers to a standardized marking code that indicates the lead-free solder composition and finish of electronic components for compliance with environmental regulations.
e0 - Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
Obsolete - Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures
1 (Unlimited) - Number of Terminations3
- Terminal Finish
Terminal Finish refers to the surface treatment applied to the terminals or leads of electronic components to enhance their performance and longevity. It can improve solderability, corrosion resistance, and overall reliability of the connection in electronic assemblies. Common finishes include nickel, gold, and tin, each possessing distinct properties suitable for various applications. The choice of terminal finish can significantly impact the durability and effectiveness of electronic devices.
Tin/Lead (Sn/Pb) - Voltage - Supply
Voltage - Supply refers to the range of voltage levels that an electronic component or circuit is designed to operate with. It indicates the minimum and maximum supply voltage that can be applied for the device to function properly. Providing supply voltages outside this range can lead to malfunction, damage, or reduced performance. This parameter is critical for ensuring compatibility between different components in a circuit.
3V~5.5V - Reach Compliance Code
Reach Compliance Code refers to a designation indicating that electronic components meet the requirements set by the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation in the European Union. It signifies that the manufacturer has assessed and managed the chemical substances within the components to ensure safety and environmental protection. This code is vital for compliance with regulations aimed at minimizing risks associated with hazardous substances in electronic products.
not_compliant - Output Type
The "Output Type" parameter in electronic components refers to the type of signal or data that is produced by the component as an output. This parameter specifies the nature of the output signal, such as analog or digital, and can also include details about the voltage levels, current levels, frequency, and other characteristics of the output signal. Understanding the output type of a component is crucial for ensuring compatibility with other components in a circuit or system, as well as for determining how the output signal can be utilized or processed further. In summary, the output type parameter provides essential information about the nature of the signal that is generated by the electronic component as its output.
1-Wire® - Power Supplies
an electronic circuit that converts the voltage of an alternating current (AC) into a direct current (DC) voltage.?
5V - Resolution
Resolution in electronic components refers to the smallest increment of measurement or change that can be detected or represented by the component. It is a crucial specification in devices such as sensors, displays, and converters, as it determines the level of detail or accuracy that can be achieved. For example, in a digital camera, resolution refers to the number of pixels that make up an image, with higher resolution indicating a greater level of detail. In analog-to-digital converters, resolution is the number of discrete values that can be represented in the digital output, determining the precision of the conversion process. Overall, resolution plays a significant role in determining the performance and capabilities of electronic components in various applications.
7 b - Sensor Type
In electronic components, the parameter "Sensor Type" refers to the specific type of sensor technology used in a particular component to detect and measure physical phenomena such as light, temperature, pressure, motion, or proximity. Different sensor types utilize various principles and mechanisms to convert the detected input into an electrical signal that can be processed by the electronic component. Common sensor types include photodiodes, thermistors, accelerometers, and proximity sensors, each designed for specific applications and environments. Understanding the sensor type is crucial for selecting the right component for a given task and ensuring accurate and reliable sensing capabilities in electronic systems.
Digital, Local - Sensors/Transducers Type
In electronic components, the parameter "Sensors/Transducers Type" refers to the specific type of sensor or transducer that is integrated into the component. Sensors are devices that detect changes in physical properties and convert them into electrical signals, while transducers are devices that convert one form of energy into another. The type of sensor or transducer used in an electronic component can vary widely depending on the intended application, such as temperature sensors, pressure sensors, proximity sensors, accelerometers, and more. Understanding the Sensors/Transducers Type parameter is crucial for selecting the right component for a particular electronic system or device, as different types of sensors/transducers have different functionalities and performance characteristics.
TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL - Accuracy - Highest (Lowest)
In electronic components, "Accuracy - Highest (Lowest)" refers to the range within which the actual value of a parameter can deviate from the ideal or specified value. The term "Highest" indicates the upper limit of this range, while "Lowest" indicates the lower limit. For example, if a component has an accuracy of ±5%, the highest accuracy would mean that the actual value could be within 5% above the specified value, while the lowest accuracy would mean it could be within 5% below the specified value. This parameter is crucial for ensuring the reliability and performance of electronic devices by determining how closely the component's output matches the desired value.
±0.5°C (±2°C) - Sensing Temperature - Local
Sensing Temperature - Local refers to the capability of an electronic component to measure the temperature in its immediate environment or vicinity. This parameter is crucial for applications that require monitoring of temperature for performance, safety, or stability purposes. It often involves temperature sensors integrated within components like microcontrollers, power regulators, or other integrated circuits. The local sensing allows for accurate temperature readings that help in adjusting operational conditions, ensuring optimal performance, and preventing thermal-related failures.
-55°C~125°C - Features
In the context of electronic components, the term "Features" typically refers to the specific characteristics or functionalities that a particular component offers. These features can vary depending on the type of component and its intended use. For example, a microcontroller may have features such as built-in memory, analog-to-digital converters, and communication interfaces like UART or SPI.When evaluating electronic components, understanding their features is crucial in determining whether they meet the requirements of a particular project or application. Engineers and designers often look at features such as operating voltage, speed, power consumption, and communication protocols to ensure compatibility and optimal performance.In summary, the "Features" parameter in electronic components describes the unique attributes and capabilities that differentiate one component from another, helping users make informed decisions when selecting components for their electronic designs.
Programmable Limit - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
Non-RoHS Compliant
DS1820 Features
Unique 1-Wire® Interface Requires Only One Port Pin for Communication
Maximize System Accuracy in Broad Range of Thermal Management Applications
Measures Temperatures from -55°C to +125°C (-67°F to +257°F)
±0.5°C Accuracy from -10°C to +85°C
9-Bit Resolution
No External Components Required
Parasite Power Mode Requires Only 2 Pins for Operation (DQ and GND)
Simplifies Distributed Temperature-Sensing Applications with Multidrop Capability
Each Device Has a Unique 64-Bit Serial Code Stored in On-Board ROM
Flexible User-Definable Nonvolatile (NV) Alarm Settings with Alarm Search Command Identifies Devices with Temperatures Outside Programmed Limits
Available in 8-Pin SO (150 mils) and 3-Pin TO-92 Packages
What can DS1820 used for?
Thermostatic Controls
Industrial Systems
Consumer Products
Thermometers
Thermally Sensitive Systems
DS1820 vs. DS18b20
How to connect DS1820 Temperature Module with Arduino?
The connection scheme is very easier. We have only three pins to connect. Connect the temperature module to the Arduino as shown in the figure.

DS1820 Package Outline



DS1820 Manufacturer
The market is evolving. The rules are changing. To keep your time to market short, you need integration at every level—from silicon to the supply chain. Count on Maxim Integrated to help you overcome design and architectural challenges, with integrated solutions for the industrial, medical, consumer, automotive, energy, computing, and communications realms. Maxim Integrated is also your source for power, interface, and even digital products that work in the analog world. And they’re glad to support you with reference designs, tools, technical documents, packaging, and more. We invite you to explore their latest analog integration offerings.
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Datasheet PDF
- Datasheets :
- Application Notes :
- Other Related Documents :
- ConflictMineralStatement :
What is DS1820?
The DS1820 is a 1-wire programmable Temperature sensor from maxim integrated. It is widely used to measure temperature in hard environments like in chemical solutions, mines or soil, etc. It can measure a wide range of temperature from -55°C to +125° with a decent accuracy of ±5°C.
What is the difference between DS1820 and DS18B20?
DS18B20 is a temperature sensor, while DS1820 is a voice sensor. DS18B20 is a commonly used temperature sensor. It has the characteristics of small size, low hardware cost, strong anti-interference ability, and high accuracy. DS18B20 digital temperature sensor is easy to connect and can be used on many occasions after being packaged, such as pipe type, thread type, magnet adsorption Type, stainless steel package type, various models, such as LTM8877, LTM8874, and so on. Mainly change its appearance according to different applications
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