714049 DS18B20 - Sensore di temperatura digitale

DS18B20 - Sensore di temperatura digitale

Sensore di temperatura digitale DS18B10 prodotto dalla Maxim. Riporta la temperatura in un range da -55 a 125°C con una precisione di +/- 0,5 ed una risoluzione impostabile da 9 a 12bits.
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€ 2,73 Prezzo
€ 2,24 + VAT

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The MAX31820 ambient temperature sensor provides 9-bit to 12-bit Celsius temperature measurements with ±0.5°C accuracy over a +10°C to +45°C temperature range. Over its entire -55°C to +125°C operating range, the device has ±2.0°C accuracy.

The device communicates over a one-wire bus that, by definition, requires only one data line (and ground) for communication with a central microprocessor. In addition, the device can derive power directly from the data line, eliminating the need for an external power supply. Requiring so few pins enables the device to be placed in a 3-pin TO-92 package. The form factor of this package allows the device to be placed above the board and thus measure the ambient temperature of a system, as opposed to the board temperature that a surface-mount package would measure.

Each MAX31820 has a unique 64-bit serial code, which allows multiple MAX31820 devices to function on the same one-wire bus. Therefore, it is simple to use one microprocessor to control many devices distributed over a large area.

Features:

  • Unique one-wire interface requires only one port pin for communication
  • Each device has a unique 64-bit serial code stored in onboard ROM
  • Multidrop capability simplifies distributed temperature-sensing applications
  • Requires no external components
  • Can be powered from data line; 3.0V to 3.7V power-supply range
  • Measures temperatures from -55°C to +125°C (-67°F to +257°F)
  • ±0.5°C accuracy from +10°C to +45°C
  • Thermometer resolution is user-selectable from 9 bits to 12 bits
  • Converts temperature to 12-bit digital word in 750ms (Max)
  • User-definable nonvolatile (NV) alarm settings
  • Alarm search command identifies and addresses devices whose temperature is outside programmed limits (Temperature Alarm Condition)
  • Available in 3-pin TO-92 package
  • TO-92 package allows measurement of ambient temperature
  • Software compatible with the DS1822 and DS18B20

Documents:

Specifiche

Part. No. : SEN-14049

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