The LM83 is a digital temperature sensor with a 2 wire serial interface that senses the voltage and thus the temperature of three remote diodes using a Delta-Sigma analog-to-digital converter with a digital over-temperature detector. The LM83 accurately senses its own temperature as well as the temperature of three external devices, such as Pentium II® Processors or diode connected 2N3904s. The temperature of any ASIC can be detected using the LM83 as long as a dedicated diode (semiconductor junction) is available on the die. Using the SMBus interface a host can access the LM83'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. Activation of an INT# output occurs when any temperature is greater than its corresponding programmable comparator HIGH limit.

The host can program as well as read back the state of the T_CRIT register and the four T_HIGH registers. Three state logic inputs allow two pins (ADD0, ADD1) to select up to 9 SMBus address locations for the LM83. The sensor powers up with default thresholds of 127°C for T_CRIT and all T_HIGHs. The LM83 is pin for pin and register compatible with the LM84 as well as the Maxim MAX1617 and the Analog Devices ADM1021.

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• Accurately senses die temperature of 3 remote ICs, or diode junctions
• On-board local temperature sensing
• SMBus and I2C 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 LM83s on a single bus

Key Specifications [Solid_Square] Supply Voltage 3.0V to 3.6V [Solid_Square] Supply Current 0.8mA (max) [Solid_Square] Local Temp Accuracy (includes quantization error) 0°C to +85°C ±3.0°C (max) [Solid_Square] Remote Diode Temp Accuracy (includes quantization error) +25°C to +100°C ±3°C (max) 0°C to +125°C ±4°C (max)

• Local sensor accuracy (Max) (+/- C)
• 3
• Type
• Remote
• Operating temperature range (C)
• -40 to 125
• Supply voltage (Min) (V)
• 3
• Interface type
• I2C, SMBus
• Supply voltage (Max) (V)
• 3.6
• Supply current (Max) (uA)
• 800
• Temp resolution (Max) (bits)
• 8
• Features
• ALERT
• Remote channels (#)
• 3
• Addresses
• 9
• Rating
• Catalog

LM83的完整型号有：LM83CIMQA/NOPB、LM83CIMQAX/NOPB，以下是这些产品的关键参数及官网采购报价：

LM83CIMQA/NOPB，工作温度：-40 to 125，封装：SSOP (DBQ)-16，包装数量MPQ：95个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM83CIMQA/NOPB的批量USD价格：2.824（1000+）

LM83CIMQAX/NOPB，工作温度：-40 to 125，封装：SSOP (DBQ)-16，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM83CIMQAX/NOPB的批量USD价格：2.372（1000+）

LM83SW-LINUX — 用于 LM83 的 Linux 驱动程序

Linux 驱动程序支持 LM83 系列的系统硬件监测计。Linux 驱动程序支持通过 I2C 总线和接口与硬件监控子系统进行通信。
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：

• lm83
• lm82

Linux 源文件

与该器件关联的文件为：

drivers/hwmon/lm83.c

Documentation/hwmon/lm83

源文件

drivers/hwmon/lm83.c

其他文件

Documentation/hwmon/lm83

启用驱动程序支持 使用“make menuconfig”（也可以使用“make (...)