The TMP121 and TMP123 are SPI-compatible temperature sensors available in a tiny SOT23-6 package. Requiring no external components, the TMP121 and TMP123 are capable of measuring temperatures within 2°C of accuracy over a temperature range of –40°C to +125°C. Low supply current, and a supply range from 2.7V to 5.5V, make the TMP121 and TMP123 excellent candidates for low-power applications.

The TMP121 and TMP123 are ideal for extended thermal measurement in a variety of communication, computer, consumer, environmental, industrial, and instrumentation applications.

• DIGITAL OUTPUT: SPI-Compatible Interface
• RESOLUTION: 12-Bit + Sign, 0.0625°C
• ACCURACY: ±1.5°C from –25°C to +85°C (max)
• LOW QUIESCENT CURRENT: 50 μA (max)
• WIDE SUPPLY RANGE: 2.7V to 5.5V
• TINY SOT23-6 PACKAGE
• OPERATION TO 150°C
• APPLICATIONS
  • POWER-SUPPLY TEMPERATURE MONITORING
  • COMPUTER PERIPHERAL THERMAL PROTECTION
  • NOTEBOOK COMPUTERS
  • CELL PHONES
  • BATTERY MANAGEMENT
  • OFFICE MACHINES

All other trademarks are the property of their respective owners.

• Local sensor accuracy (Max) (+/- C)
• 1.5
• Type
• Local
• Operating temperature range (C)
• -40 to 125
• Supply voltage (Min) (V)
• 2.7
• Interface type
• SPI
• Supply voltage (Max) (V)
• 5.5
• Supply current (Max) (uA)
• 50
• Temp resolution (Max) (bits)
• 12
• Remote channels (#)
• 0
• Addresses
• NA
• Rating
• Catalog

TMP121的完整型号有：TMP121AIDBVR、TMP121AIDBVT，以下是这些产品的关键参数及官网采购报价：

TMP121AIDBVR，工作温度：-40 to 125，封装：SOT-23 (DBV)-6，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TMP121AIDBVR的批量USD价格：.961（1000+）

TMP121AIDBVT，工作温度：-40 to 125，封装：SOT-23 (DBV)-6，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TMP121AIDBVT的批量USD价格：1.153（1000+）

LM70SW-LINUX — 用于 LM70 的 Linux 驱动程序

Linux 驱动程序支持 LM70 系列温度传感器。Linux 驱动程序支持通过 SPI 总线和接口与硬件监测子系统进行通信。
Linux 主线状态

在 Linux 主线中提供：是
可通过 git.ti.com 获取：不适用

支持的器件：

• lm70
• tmp121
• lm71
• lm74

Linux 源文件

与该器件关联的文件为：

drivers/hwmon/lm70.c

Documentation/hwmon/lm70

源文件

drivers/hwmon/lm70.c

其他文件

Documentation/hwmon/lm70

启用驱动程序支持 使用“make (...)