LM70
- 0.25°C Temperature Resolution.
- Shutdown Mode Conserves Power Between Temperature Reading
- SPI and MICROWIRE Bus Interface
- VSSOP-8 and WSON-8 Packages Save Space
- UL Recognized Component
Key Specifications
- Supply Voltage 2.65V to 5.5V
- Supply
Current
- Operating260 μA (typ)490 μA (max)
- Shutdown12 μA (typ)
- Temperature
Accuracy
- −40°C to 85°C, ±2°C(max)
- −10°C to 65°C, +1.5/−2°C(max)
- −55°C to 125°C, +3/−2°C(max)
- −55°C to 150°C, +3.5/−2°C(max)
All trademarks are the property of their respective owners.
The LM70 is a temperature sensor, Delta-Sigma analog-to-digital converter with an SPI and MICROWIRE compatible interface available in WSON and VSSOP 8-pin packages. The host can query the LM70 at any time to read temperature. A shutdown mode decreases power consumption to less than 10 µA. This mode is useful in systems where low average power consumption is critical.
The LM70 has 10-bit plus sign temperature resolution (0.25°C per LSB) while operating over a temperature range of −55°C to +150°C.
The LM70's 2.65V to 5.5V supply voltage range, low supply current and simple SPI interface make it ideal for a wide range of applications. These include thermal management and protection applications in hard disk drives, printers, electronic test equipment, and office electronics.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LM70 SPI/MICROWIRE 10-Bit plus Sign Digital Temperature Sensor datasheet (Rev. G) | 2013/3/22 | |||
| 證書 | UL Report Vol1-Sec4 Description E232195 | 2018/8/9 | ||||
| 應用說明 | AN-1256 Tiny Temperature Sensors for Portable Systems (Rev. A) | 2013/4/26 | ||||
| 應用說明 | Tiny Temperature Sensors for Remote Systems | 2003/2/17 |
設計與開發
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LM70SW-LINUX — 適用於 LM70 的 Linux 驅動程式
The Linux driver supports the LM70 series of Temperature Sensors. The Linux driver supports communication through the SPI bus and interfaces with the Hardware Monitoring sub-system.
Linux Mainline StatusAvailable in Linux Main line: Yes
Available through git.ti.com: N/A
- lm70
- tmp121
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSSOP (DGK) | 8 | Ultra Librarian |
| WSON (NGK) | 8 | Ultra Librarian |