DS18B20
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| Part Number | DS18B20 |
|---|---|
| Manufacturer |
 UMW Youtai Semiconductor
|
| Description | The DS18B20 is a highly popular digital temperature sensor developed by Analog Devices (Maxim Integrated), designed for accurate and reliable temperature measurement in a wide range of applications. It utilizes a 1-Wire communication interface, allowing multiple devices to be connected using a single data line, significantly simplifying system wiring. The device provides programmable resolution from 9-bit to 12-bit, delivering precise temperature readings with accuracy up to ±0.5°C over a typical operating range. It supports a wide measurement range of approximately -55°C to +125°C, making it suitable for both industrial and consumer applications. The DS18B20 operates with a supply voltage of 3.0V to 5.5V and supports parasite power mode, allowing it to draw power directly from the data line when needed, which is ideal for remote sensing installations. Each sensor contains a unique 64-bit serial code, enabling multiple sensors to coexist on the same bus without address conflicts, making it ideal for distributed temperature monitoring systems. The device integrates temperature-to-digital conversion, alarm threshold registers, and non-volatile memory, reducing the need for additional external components and simplifying system design. Packaged in a standard TO-92 through-hole form factor, the DS18B20 is easy to integrate into both prototype and production environments. It is also widely available in sealed probe versions for use in harsh or outdoor conditions. The DS18B20 is widely used in applications such as HVAC systems, industrial monitoring, home automation, IoT devices, environmental sensing, and embedded control systems, where accurate, low-cost, and easy-to-use digital temperature sensing is required. |
| Product Group | Temperature Sensor |
| MOQ | 2000 pcs |
| SPQ | 2000 pcs |
| Figure/Case | TO-92-3 |
| Package | BULK Pack |
| Ship From | Hong Kong |
| Shipment Way | DHL / Fedex / TNT / UPS / Others |
| Delivery Term | Ex-Works |
| Send RFQ | sales@signalhk.com |
| Feature | Specification |
|---|---|
| Temperature Range | -55°C to +125°C |
| Accuracy | ±0.5°C (from -10°C to +85°C) |
| Resolution | Programmable: 9-bit, 10-bit, 11-bit, or 12-bit (default: 12-bit) |
| Interface | 1-Wire® communication protocol |
| Supply Voltage | 3.0V to 5.5V |
| Power Modes | Parasitic power (no external power needed) or externally powered |
| Conversion Time | 93.75ms (9-bit), 187.5ms (10-bit), 375ms (11-bit), 750ms (12-bit) |
| Unique ID | Each sensor has a 64-bit unique ROM code |
| Package Types | TO-92, SOIC-8, µSOP-8 |
| Operating Current | 1mA (active), 750nA (standby) |
| Data Format | Digital output in 2's complement (temperature in °C) |
| Alarm Function | User-definable upper and lower trigger points |
| Communication Speed | Standard: 16.3kbps, Overdrive mode: 142kbps |
| Output Type | Digital |
| Waterproof Version | Available for industrial and outdoor applications |
| Applications | Thermostatic control, industrial systems, consumer electronics, temperature monitoring in HVAC, medical, food safety, and data centers |
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DS18B20
DS18B20