New, High-Capacity, Temperature Data-Logger IC
DALLAS, TX-October 1, 2004-Dallas Semiconductor (NASDAQ: MXIM) introduces the DS2422, a high-performance temperature data-logger IC designed for applications where the standard Thermochron® iButton® version is not suitable. The DS2422 has the same performance as the DS1922L Thermochron, but comes in a 24-lead, 300-mil SO package that can easily be integrated into a product or system. This device periodically and simultaneously logs both temperature and an additional input from an external sensor (for example, a humidity sensor which, when combined with the temperature data, creates a log of relative humidity). The DS2422 comes with a serial interface that allows direct connection to an analog-to-digital converter (ADC), and control circuitry to enable/disable a charge pump.
The DS2422 can store up to 8k data points with sample rates from
1 second to 273 hours. Users can configure a start delay based on elapsed time or temperature. Accuracy is better than ±0.5°C with resolution up to 0.0625°C. This device operates over the -40°C to +85°C temperature range and has onboard password protection that ensures data integrity.
The DS2422 is designed for applications where temperature logging, and other sensor data (such as very high or low temperature, humidity, or shock) are needed. The DS2422 is ideal for applications such as food safety and quality, pharmaceutical safety and quality, and environmental data logging.
Prices start at $30.00 (100-up, FOB USA). Visit www.iButton.com for additional information.
Thermochron and iButton are registered trademarks of Dallas Semiconductor, Inc.
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