LM75C传感器变送器的温度传感器-模拟数字输出规格书PDF中文资料

LM75C属于传感器变送器的温度传感器-模拟数字输出。由德州仪器制造生产的LM75C温度传感器 - 模拟和数字输出模拟和数字输出温度传感器可用于测量环境热能量。特征包括传感器类型、本地感测温度、远程感测温度、输出类型、电源电压和分辨率。传感器类型为模拟本地/远程/红外、模拟数字、本地/远程、数字本地/远程/红外或内部，感应温度范围为 -55°C 至 200°C。

1 Features

1• No External Components Required

• Shutdown Mode to Minimize Power Consumption

• Up to Eight LM75s Can be Connected to a Single

Bus

• Power Up Defaults Permit Stand-alone Operation

as Thermostat

• UL Recognized Component (LM75B and LM75C)

• Key Specifications:

– Supply Voltage

– LM75B, LM75C: 3 V to 5.5 V

– Supply Current

– Operating: 280 μA (typical)

– Shutdown: 4 μA (typical)

– Temperature Accuracy

– −25°C to 100°C: ±2°C (maximum)

– −55°C to 125°C: ±3°C (maximum)

2 Applications

• General System Thermal Management

• Communications Infrastructure

• Electronic Test Equipment

• Environmental Monitoring

3 Description

The LM75B and LM75C are industry-standard digital

temperature sensors with an integrated Sigma-Delta analog-to-digital converter and I2C interface. The

LM75 provides 9-bit digital temperature readings with

an accuracy of ±2°C from -25°C to 100°C and ±3°C

over –55°C to 125°C.

Communication is accomplished over a 2-wire

interface which operates up to 400kHz. The LM75

has three address pins, allowing up to eight LM75

devices to operate on the same 2-wire bus. The

LM75 has a dedicated over-temperature output (O.S.)

with programmable limit and hystersis. This output

has programmable fault tolerance, which allows the

user to define the number of consecutive error

conditions that must occur before O.S. is activated.

The wide temperature and supply range and I2C

interface make the LM75 ideal for a number of

applications including base stations, electronic test

equipment, office electronics, personal computers,

and any other system where thermal management is

critical to performance. The LM75B and LM75C are available in an SOIC package or VSSOP package.