工业物联网4.0温控传感器MAX31855资料
MAX31855冷端补偿热电偶至数字输出转换器高精度热电偶数字转换器IC，【硅天下备样信息】MAX31855KASA+T -200°C to +1350°C 8SO MAX31855JASA+T -40°C to +750°C 8SO MAX31855NASA+T -200°C to + 1300°C 8SO MAX31855SASA+T -50°C to +1600°C 8SO MAX31855TASA+T -250°C to +400°C 8SO MAX31855EASA+T -40°C to +900°C 8SO MAX31855RASA+T -50°C to +1770°C 8SO 1. 概述 MAX31855为热电偶至数字输出转换器，内置14位模/数转换器(ADC)。器件带有冷端补偿检测和修正、数字控制器、SPI兼容接口，以及相关的控制逻辑，在温度控制器、过程控制或监测系统中设计用于配合外部微控制器(μC)工作。提供多个版本的器件，每个版本针对特定的热电偶类型(K、J、N、T或E型)进行优化和调整。热电偶类型以器件型号后缀表示(例如MAX31855K)。 器件输出14位带符号数据，通过SPI兼容接口、以只读格式输出。转换的温度分辨率为0.25℃，最高温度读数为+1800℃，最低温度读数为-270℃，对于K型热电偶，温度范围为-200℃至+700℃，保持±2℃精度。 2. 特性 冷端补偿14位、0.25℃分辨率提供K、J、N、T和E型热电偶器件版本简单的SPI兼容接口(只读)检测热电偶对GND或VCC短路检测热电偶开路https://dimg04.c-ctrip.com/images/0391g120009pboysq007D.png
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