产品描述

NST7719是具有内置本地温度传感器的远程温度传感器监视器。其远程温度传感器连接的晶体管通常是低成本的NPN或 PNP类型晶体管或二极管，这些器件是微控制器、微处理器或FPGA必不可少的组成部分。对于本地和远程温度传感器，片上11bit的模数转换提供高达0.125℃的分辨率。NST7719两线串行接口可兼容I2C和SMBUS的接口，多达六个不同的引脚可编程地址。此外NST7719集成了串联电阻消除、可编程非理想因子（η因子）、可编程的偏移量、可编程温度的限值、可编程数字滤波器、二极管故障检测和温度报警等个性化功能，提高了精度和抗噪性，实现了可靠的热监测解决方案。NST7719的工作电压范围为3V至3.6V，温度范围为-40℃至 125℃，是通信、计算、仪表和工业等众多应用中多位置、高精度温度测量的理想选择。其支持一路本地和两路远程的温度监测。

产品特性

• 远程温度检测器：
• - ±1.5℃最大精度（-10℃＜TDiode<105℃）
• - 11位ADC，分辨率：0.125℃
• - 支持高达1nF的二极管滤波电容器
• 本地温度监测器：
• - ±1.5℃最大精度（-10℃＜TDiode<105℃）
• - 11位ADC，分辨率：0.125℃
• 自动远程二极管类别识别及优化设置
• 串联电阻消除
• 可编程温度阈值报警
• I2C/SMBus数字输出

应用场景

• 处理器和FPGA温度监测
• 通信设备
• 服务器和个人计算机
• 测量设备
• LED照明和投影仪热控制
• 工业控制器
• 存储设备

Description

NST7719 is a remote temperature sensor monitor with built-in local temperature sensor. The transistors connected to its remote temperature sensors are usually low-cost NPN or PNP type transistors and diodes, which are essential components of microcontrollers, microprocessors or FPGAs. For local and remote temperature sensors, 11-bit on-chip analog-to-digital conversion provides resolution up to 0.125°C. The NST7719 two-wire serial interface is compatible with I2C and SMBUS interfaces with up to six different pin-programmable addresses. In addition, NST7719 integrates personalized features such as series resistance cancellation, programmable non-ideal factor (η factor), programmable offset, programmable temperature limits, programmable digital filters, diode fault detection and temperature alarm to improve accuracy and noise resistance, achieving a reliable thermal monitoring solution. With an operating voltage range of 3V to 3.6V and a temperature range of -40°C to 125°C, the NST7719 is ideal for multi-position, high-precision temperature measurements in a wide range of applications, including communications, computing, instrumentation and industry. It supports one-way local and two-way remote temperature monitoring.

Features

• Remote temperature detector:
• - ±1.5°C max precision (-10°C <TDiode<105°C)
• - 11-bit ADC, resolution:0.125℃
• - Support diode filter capacitors up to 1nF
• Local temperature monitor:
• - ±1.5°C max precision (-10°C <TDiode<105°C)
• - 11-bit ADC, resolution:0.125℃
• Automatic remote diode type identification and optimization setting
• Series resistance elimination
• Programmable temperature threshold alarm
• I2C/SMBus digital output

Applications

• Processor and FPGA temperature monitoring
• Communication device
• Servers and personal computers
• Measuring equipment
• LED lighting and projector thermal control
• Industrial control unit
• Storage device

説明

NST7719 is a remote temperature sensor monitor with built-in local temperature sensor. The transistors connected to its remote temperature sensors are usually low-cost NPN or PNP type transistors and diodes, which are essential components of microcontrollers, microprocessors or FPGAs. For local and remote temperature sensors, 11-bit on-chip analog-to-digital conversion provides resolution up to 0.125°C. The NST7719 two-wire serial interface is compatible with I2C and SMBUS interfaces with up to six different pin-programmable addresses. In addition, NST7719 integrates personalized features such as series resistance cancellation, programmable non-ideal factor (η factor), programmable offset, programmable temperature limits, programmable digital filters, diode fault detection and temperature alarm to improve accuracy and noise resistance, achieving a reliable thermal monitoring solution. With an operating voltage range of 3V to 3.6V and a temperature range of -40°C to 125°C, the NST7719 is ideal for multi-position, high-precision temperature measurements in a wide range of applications, including communications, computing, instrumentation and industry. It supports one-way local and two-way remote temperature monitoring.

特徴

• Remote temperature detector:
• - ±1.5°C max precision (-10°C <TDiode<105°C)
• - 11-bit ADC, resolution:0.125℃
• - Support diode filter capacitors up to 1nF
• Local temperature monitor:
• - ±1.5°C max precision (-10°C <TDiode<105°C)
• - 11-bit ADC, resolution:0.125℃
• Automatic remote diode type identification and optimization setting
• Series resistance elimination
• Programmable temperature threshold alarm
• I2C/SMBus digital output

アプリケーション

• Processor and FPGA temperature monitoring
• Communication device
• Servers and personal computers
• Measuring equipment
• LED lighting and projector thermal control
• Industrial control unit
• Storage device