Programmable Resolution Temperature Sensor MSKSEMI DS18B20 MSK 1 Wire Interface Digital Thermometer
DS18B20 Programmable Resolution 1-Wire Temperature Sensor
The DS18B20 is a digital thermometer providing 9 to 12-bit resolution temperature measurements, with a programmable non-volatile alarm setting for upper and lower temperature thresholds. It communicates via a single-wire interface, requiring only one data pin and a ground connection. The device operates within a temperature range of -55C to +125C (-67F to +257F) and offers an accuracy of 0.4C within the -10C to 70C range. It supports parasitic power mode, drawing power directly from the data line, eliminating the need for an external power supply. Each DS18B20 features a unique 64-bit serial number, allowing multiple devices to be connected in a multi-drop configuration on the same bus, controlled by a single processor. This makes it suitable for distributed temperature sensing over large areas.
Product Attributes
- Brand: Msksemi
- Interface: 1-Wire
- Power Supply: 2.5V ~ 5.5V (VDD or parasitic mode)
- Package Options: MSOP8, SOP8, TO-92, TO-92S
Technical Specifications
| Feature | Specification |
|---|---|
| Temperature Measurement Range | -55C to +125C (-67F to +257F) |
| Accuracy (at -10C to 70C) | 0.4C |
| Temperature Resolution | 9-12 bits (selectable) |
| Temperature Conversion Speed (max 12-bit) | < 750ms |
| ESD Protection | HBM 8000V, MM 800V |
| Unique Device ID | 64-bit serial number |
| Alarm Function | User-definable non-volatile temperature alarm settings |
| Multi-drop Capability | Yes |
| Parasitic Power Mode | Supported |
| Ordering Information | Package | Minimum Order Quantity |
|---|---|---|
| DS18B20+MSK | TO-92 | 2000PCS |
| DS18B20U+MSK | MSOP-8 | 5000PCS |
| DS18B20Z+MSK | SOP-8 | 4000PCS |
| DS18B20S+MSK | TO-92S | 2000PCS |
Application Scenarios
- Temperature Control
- Industrial Systems
- Consumer Products
- Grain Temperature Monitoring
- Thermometers
- Any Heat Sensing System
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.