The LM99 is an 11-bit remote diode temperature sensor with a 2-wire System Management Bus (SMBus) serial interface. The LM99 accurately measures: (1) its own temperature and (2) the temperature of a remote diode-connected transistor such as the 2N3904 or a thermal diode commonly found on Graphics Processor Units (GPU), Computer Processor Units (CPU or other ASICs. The LM99 remote diode temperature sensor shifts the temperature from the remote sensor down 16°C and operates on that shifted temperature:
The local temperature reading requires no offset.
The LM99 has an Offset Register which provides a means for precise matching to various thermal diodes. Contact hardware.monitor@nsc.com for the latest details
| LM99 | |
| Temp Resolution (Max) (bits) | 11 |
| Supply Voltage (Min) (V) | 3 |
| Supply Voltage (Max) (V) | 3.6 |
| Iq (Typ) (uA) | 1700 |
| Interface | SMBus |
| Sensor Type | Remote + Local |
| Remote Channel | 1 |
| Remote Sensor Accuracy (Max) (+/- C) | 1 |
| Local Sensor Accuracy (Max) (+/- C) | 3 |
| Fault Queue | Yes |
| Pin/Package | 8VSSOP |
| Approx. Price (US$) | 1.10 | 1ku |
| Rating | Catalog |
| 培训内容 | 型号 | 软件/工具类型 |
| 用于硬件监控器和数字温度传感器的评估板软件 | DIGITALTEMPSENSORSEVM-SW | 应用软件 |