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DS1822-PAR - Econo 1-Wire Parasite-Power Digital Thermometer

Description

The DS1822-PAR digital thermometer provides 9- to 12-bit centigrade temperature measurements and has an alarm function with nonvolatile (NV) user-programmable upper and lower trigger points.

Features

  • Unique 1-Wire® interface requires only one port pin for communication.
  • Derives power from data line (“parasite power”).
  • does not need a local power supply.
  • Multidrop capability simplifies distributed temperature sensing.

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Datasheet preview – DS1822-PAR

Datasheet Details

Part number DS1822-PAR
Manufacturer Maxim Integrated
File Size 206.72 KB
Description Econo 1-Wire Parasite-Power Digital Thermometer
Datasheet download datasheet DS1822-PAR Datasheet
Additional preview pages of the DS1822-PAR datasheet.

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Full PDF Text Transcription

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www.maxim-ic.com FEATURES ƒ Unique 1-Wire® interface requires only one port pin for communication ƒ Derives power from data line (“parasite power”)—does not need a local power supply ƒ Multidrop capability simplifies distributed temperature sensing applications ƒ Requires no external components ƒ ±2.0°C accuracy from -10°C to +85°C ƒ Measures temperatures from -55°C to +100°C (-67°F to +212°F) ƒ Thermometer resolution is user-selectable from 9 to 12 bits ƒ Converts temperature to 12-bit digital word in 750ms (max.) ƒ User-definable temperature alarm settings ƒ Alarm search command identifies and addresses devices whose temperature is outside of programmed limits (temperature alarm condition) ƒ Software compatible with the DS18B20-PAR ƒ Ideal for use in remote sensing applications (e.g.
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