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DS2422 - 1-Wire Temperature/Datalogger

Description

The DS2422 temperature/datalogger combines the core functions of a fully featured datalogger in a single chip.

Features

  • Automatically Wakes Up, Measures Temperature and/or Reads an External ADC and Stores Values in 8KB of Datalog Memory in 8 or 16-Bit Format.
  • On-Chip Direct-to-Digital Temperature Converter with 8-Bit (0.5°C) or 11-Bit (0.0625°C) Resolution.
  • Sampling Rate from 1s up to 273hrs.
  • Programmable Recording Start Delay After Elapsed Time or Upon a Temperature Alarm Trip Point.
  • Programmable High and Low Trip Points for Temperature and Data Alarms.
  • Quick Access to Alarmed Devi.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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AVAILABLE DS2422 1-Wire Temperature/Datalogger with 8KB Datalog Memory GENERAL DESCRIPTION The DS2422 temperature/datalogger combines the core functions of a fully featured datalogger in a single chip. It includes a temperature sensor, realtime clock (RTC), memory, 1-Wire® interface, and serial interface for an analog-to-digital converter (ADC) as well as control circuitry for a charge pump. The ADC and the charge pump are peripherals that can be added to build application-specific dataloggers. Without external ADC, the DS2422 functions as a temperature logger only. The DS2422 measures the temperature and/or reads the ADC at a user-defined rate. A total of 8192 8-bit readings or 4096 16-bit readings taken at equidistant intervals ranging from 1s 273hrs can be stored.
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