LM82 具有双线接口的远程二极管和本地数字温度传感器
The LM82 is a digital temperature sensor with a 2 wire serial interface that senses the voltage and thus the temperature of a remote diode using a Delta-Sigma analog-to-digital converter with a digital over-temperature detector. The LM82 accurately senses its own temperature as well as the temperature of external devices, such as Pentium II ™ Processors or diode connected 2N3904s. The temperature of any ASIC can be detected using the LM82 as long as a dedicated diode (semiconductor junction) is available on the die. Using the SMBus interface a host can access the LM82's registers at any time. Activation of a ^T_CRIT_A output occurs when any temperature is greater than a programmable comparator limit, T_CRIT.
|
LM82 |
| Temp Resolution (Max) (bits) |
8 |
| Supply Voltage (Min) (V) |
3 |
| Supply Voltage (Max) (V) |
3.6 |
| Iq (Typ) (uA) |
800 |
| Interface |
2-Wire Serial |
| Sensor Type |
Remote + Local |
| Remote Channel |
1 |
| Remote Sensor Accuracy (Max) (+/- C) |
3 |
| Local Sensor Accuracy (Max) (+/- C) |
3 |
| Pin/Package |
16SSOP |
| Approx. Price (US$) |
1.93 | 1ku |
| Rating |
Catalog |
LM82 特性
- Accurately senses die temperature of remote ICs, or diode junctions
- On-board local temperature sensing
- SMBus and I 2C compatible interface, supports SMBus 1.1 TIMEOUT
- Two interrupt outputs: ^INT and ^T_CRIT_A
- Register readback capability
- 7 bit plus sign temperature data format, 1 °C resolution
- 2 address select pins allow connection of 9 LM82s on a single bus
LM82 器件用途
- System Thermal Management
- Computers
- Electronic Test Equipment
- Office Electronics
- HVAC
LM82 工具和软件
LM82 应用技术支持与电子电路设计开发资源下载
- LM82 数据资料 dataSheet 下载.PDF
- TI 德州仪器温度传感器产品选型与价格 . xls
- (应用手册)Multiple Remote Diode Temperature Sensing
