TMP451傳感器變送器的溫度傳感器-模擬數(shù)字輸出規(guī)格書PDF中文資料

TMP451屬于傳感器變送器的溫度傳感器-模擬數(shù)字輸出。由德州儀器制造生產(chǎn)的TMP451溫度傳感器 - 模擬和數(shù)字輸出模擬和數(shù)字輸出溫度傳感器可用于測量環(huán)境熱能量。特征包括傳感器類型、本地感測溫度、遠(yuǎn)程感測溫度、輸出類型、電源電壓和分辨率。傳感器類型為模擬本地/遠(yuǎn)程/紅外、模擬數(shù)字、本地/遠(yuǎn)程、數(shù)字本地/遠(yuǎn)程/紅外或內(nèi)部，感應(yīng)溫度范圍為 -55°C 至 200°C。

1 Features

1? ±1°C Accuracy for Local and Remote Diode

Sensors

? 0.0625°C Resolution for Local and Remote

Channels

? 1.7-V to 3.6-V Supply and Logic Voltage Range

? 27-μA Operating Current, 3-μA Shutdown Current

? Series Resistance Cancellation

? η-Factor and Offset Correction

? Programmable Digital Filter

? Diode Fault Detection

? Two-Wire and SMBus? Serial Interface

? 8-Lead WSON (WDFN) Package

2 Applications

? Processor and FPGA Temperature Monitoring

? Smart Phones and Tablets

? Servers, Desktops, and Notebooks

? Telecom Equipment and Storage Area Networks

(SANs)

3 Description

The TMP451 device is a high-accuracy, low-power

remote temperature sensor monitor with a built-in

local temperature sensor. The remote temperature

sensors are typically low-cost discrete NPN or PNP

transistors, or substrate thermal transistors or diodes

that are integral parts of microprocessors,

microcontrollers, or FPGAs. The temperature is

represented as a 12-bit digital code for both the local

and remote sensors, giving a resolution of 0.0625°C.

The temperature accuracy is ±1°C (maximum) in the

typical operating range for the local and the remote

temperature sensors. The two-wire serial interface accepts the SMBus communication protocol.

Advanced features such as series resistance cancellation, programmable nonideality factor (η-

factor), programmable offset, programmable

temperature limits, and a programmable digital filter

are combined to provide a robust thermal monitoring

solution with improved accuracy and noise immunity.

The TMP451 device is ideal for high-accuracy

temperature measurements in multiple locations and in a variety of automotive subsystems. The device is

specified for operation over a supply voltage range of

1.7 V to 3.6 V and a temperature range of –40°C to

125°C.