DS18S20 High-Precision Temperature Sensor IC - Features, Specs & Applications
DS18S20: High-Precision Temperature Sensor IC by Analog Devices/Maxim Integrated
The DS18S20 is a legacy yet highly precise temperature sensor IC manufactured by Analog Devices Inc./Maxim Integrated. Known for its reliability and accuracy, this sensor is widely used in industrial, automotive, and consumer electronics applications. Despite being marked as obsolete, the DS18S20 remains a preferred choice for engineers due to its robust design and compatibility with legacy systems.
Detailed Overview of the DS18S20
The DS18S20 is part of the Sensors and Transducers category, specifically under Temperature Sensors - Analog and Digital Output. It features a 9-bit resolution, ensuring precise temperature measurements. The sensor is housed in a TO-92-3 (TO-226AA) package, making it suitable for through-hole mounting and easy integration into various PCB designs.
Key Features of the DS18S20
- High Precision: 9-bit resolution for accurate temperature readings.
- Microlan Interface: Supports multiple sensors on a single bus, reducing wiring complexity.
- Wide Temperature Range: Typically operates from -55 C to +125 C.
- Compact Design: TO-92-3 package ensures space efficiency and durability.
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer Part Number | DS18S20 |
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Category | Sensors, Transducers |
| Subcategory | Temperature Sensors - Analog and Digital Output |
| Resolution | 9 bits |
| Mounting Type | Through Hole |
| Package/Case | TO-226-3, TO-92-3 (TO-226AA) |
Applications of the DS18S20
The DS18S20 is versatile and finds use in multiple industries:
- Industrial Automation: Monitors machinery temperatures to prevent overheating.
- Consumer Electronics: Used in HVAC systems, computers, and home appliances.
- Automotive: Ensures optimal engine and component performance.
- Medical Devices: Provides accurate temperature readings in diagnostic tools.
Why Choose the DS18S20?
- Proven Reliability: Trusted in critical applications for years.
- Cost-Effective: Affordable solution for high-precision needs.
- Easy Integration: Compatible with existing systems and designs.
Considerations Before Purchase
While the DS18S20 is reliable, it is marked as obsolete. Buyers should check availability and consider newer alternatives if required. However, for legacy systems or budget-friendly projects, the DS18S20 remains an excellent choice.
Where to Buy the DS18S20
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