MCP9802中文资料2-Wire High-Accuracy Temperature Sensor数据手册Microchip规格书

描述 Description

The MCP9802 is a digital temperature sensor capable of reading temperatures from -55°C to +125°C. Temperature data is measured from an integrated temperature sensor and converted to digital word with a user selectable 9 to 12-bit Sigma Delta Analog to Digital Converter.The MCP9802 notifies the host controller when the ambient temperature exceeds a user programmed set point. The ALERT output is programmable as either a simple comparator for thermostat operation or as a temperature event interrupt. Communication with the sensor is accomplished via a two-wire bus that is compatible with industry standard protocols. This permits reading the current temperature, programming the set point and hysteresis, and configuring the device. The MCP9802 also contains SMBus Timeout logic for improved system reliability.Small physical size, low installed cost, and ease of usemake the MCP9802 an ideal choice for implementingsophisticated temperature system management schemes in a variety of applications.

特性 Features

• 2-wire I²C™/SMBus Compatible Interface
• SMBus Timeout
• User Selectable 9- to 12-Bit Resolution
• ±1°C Accuracy from -10°C to +85°C
• ±2°C Accuracy from +85°C to +125°C
• Low Operating Current: 220µA (typical)
• Shutdown Mode: 1µA (max)
• Power Saving One-Shot Temperature Conversion Measurement
• Space Saving SOT-23 Package
• AEC-Q100 Qualified Grade 1

简介

MCP9802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MCP9802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。