MAX1618数据手册传感器变送器的温度传感器-模拟数字输出规格书PDF

描述 Description

The MAX1618 precise digital thermometer reports the temperature of a remote sensor. The remote sensor is a diode-connected transistor-typically a low-cost, easily mounted 2N3904 NPN type-that replaces conventional thermistors or thermocouples. Remote accuracy is ±3°C for multiple transistor manufacturers, with no calibration needed. The MAX1618 can also measure the die temperature of other ICs, such as microprocessors, that contain an on-chip, diode-connected transistor.
The 2-wire serial interface accepts standard System Management Bus (SMBus™) Write Byte, Read Byte, Send Byte, and Receive Byte commands to program the alarm thresholds and to read temperature data. The data format is 7 bits plus sign, with each bit corresponding to 1°C, in two's complement format. Measurements can be done automatically and autonomously, with the 16Hz conversion rate or programmed to operate in a single-shot mode.
The thermostat mode configures the active-low ALERT output as an interrupt or as a temperature reset that remains active only while the temperature is above the maximum temperature limit or below the minimum temperature limit. The active-low ALERT output polarity in thermostat mode can be configured for active high or active low. Fan control is implemented using this active-low ALERT output.
The MAX1618 is available in a small (1.1mm high) 10-pin µMAX package.

特性 Features

• Single Channel: Measures Remote CPU Temperature
• No Calibration Required
• SMBus 2-Wire Serial Interface
• Programmable Under/Overtemperature Alarms
• Overtemperature Output for Fan Control (Thermostat Mode)
• Supports SMBus Alert Response Accuracy
• ±3°C (+60°C to +100°C)
• ±5°C (-55°C to +120°C)
• 3°A (typ) Standby Supply Current
• 900°A (max) Supply Current in Autoconvert Mode
• +3V to +5.5V Supply Range
• Small 10-Pin °MAX Package

应用 Application

• 局端电信设备
• 计算机：台式机、工作站和服务器
• 工业控制
• LAN服务器
• 多芯片模块
• 智能电池组/充电器
• 测试与测量设备

简介

MAX1618属于传感器变送器的温度传感器-模拟数字输出。由制造生产的MAX1618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。