The DS2422 temperature/data logger combines the core functions of a fully featured data logger in a single chip. It includes a Temperature Sensor Real-Time 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 t
hat CAN be added to build application-specific data loggers. Without an external ADC the DS2422 functions as a temperature logger only. It measures the temperature and/or reads the ADC at a user-defined rate. Additionally, the DS2422 CAN store 8192 8-bit readings or 4096 16-bit readings taken at equidistant intervals ranging from 1 second up to 273 hours.