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MAX31820PARMCR+

温度传感器芯片, 串行控制, 数字式, ± 2°C, -55 °C, 125 °C, TO-92, 3 引脚

MAXIM INTEGRATED PRODUCTS MAX31820PARMCR+

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制造商产品编号:
MAX31820PARMCR+
库存编号
2515556
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产品概述

The MAX31820PARMCR+ is a 1-wire, parasite power ambient temperature sensor in 3 pin TO-92 package. It provides 9bit to 12bit celsius temperature measurements with ±0.5°C accuracy over 10°C to 45°C temperature range. The device communicates over 1-wire bus that and requires only one data line (and ground) for communication with a central microprocessor. In addition, the device derives power directly from data line (parasite power) which eliminates need for an external power supply. The form factor of TO-92 package allows device to be placed above board and thus measures ambient temperature of a system as opposed to board temperature that surface mount package would measure. Each MAX31820PAR has a unique 64bit serial code which allows multiple MAX31820PAR devices to function on same 1-wire bus. It is used in temperature monitoring systems inside buildings, equipment or machinery, thermostatic controls, thermometers and any thermally sensitive system.
  • Pull-up supply voltage range from 3V to 3.7V
  • ±2°C accuracy over entire -55°C to +125°C operating range
  • Minimizes wiring and is ideal for measuring ambient temperature
  • Derives power from data line (parasite power), no local power supply needed
  • Multidrop capability simplifies distributed temperature sensing applications
  • Active current of 1mA, sink current of 4mA and DQ input current of 5µA
  • Requires no external components
  • User definable non-volatile (NV) alarm settings
  • Alarm search command identifies and addresses devices whose temperature is outside programmed limits
  • Software compatible with DS1822-PAR and DS18B20-PAR device

应用

传感与仪器, 自动化与过程控制, 工业, 消费电子产品, HVAC

产品信息

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:
数字式

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± 2°C

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-55°C

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125°C

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TO-92

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3引脚

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3V

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3.7V

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-

:
-

:
MSL 1 -无限制
查找类似产品 选择并修改以上属性即可查找类似产品。

技术文档 (2)

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