NoticeDS18B20 1 - Wire Digital Thermometer Module
From ITEAD Wiki
Contents
Overview
DS18B20 is a single-bus digital temperature sensor with features of ultra-small size, wide range of applicable voltage and measurable temperature and high resolution, etc. , which can be applied to temperature control, industrial systems, consumer products, thermometers or any thermal measurement system.
Features
1. Plug and play, easy to use. Compatible with the mainstream 2.54 interfaces and 4-Pin Grove interfaces in the market.
2. With use of M4 standard fixed holes, compatible with M4-standard kits such as Lego and Makeblock.
3. Rotatable detecting direction for better adaption.
Specifications
| PCB size | 33.2mm X 14.0mm X 1.6mm |
| Working voltage | 3.3 or 5V DC |
| Operating voltage | 3.3 or 5V DC |
| Measurable range | -55~+125℃ |
| Measurement resolution | 9~12bits（programmable） |
| Compatible interfaces | 2.54 3-pin interface and 4-pin Grove interface(1) |
DC electrical characteristics
| Parameter | Min. | Typical | Max. | Unit |
| Working voltage | 3 | 5 | 5.5 | VDC |
| Working current（VCC=5V，T=25℃） | - | 1 | 1.5 | mA |
| Sampling interval | 1 | - | - | s |
| Accuracy (-10~+85℃) | - | - | ±0.5 | ℃ |
| Accuracy (-55~+125℃) | - | - | ±2 | ℃ |
| Logic input low level VIL | -0.3 | - | 0.8 | V |
| Logic input high level VIH | 2.2 | - | 5.5/VCC+0.3 | V |
