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  • DN405–RTD 元器件

    10+
    • 品牌THERMOPTICS
    • 数量100
    • 批号19
    • 封装DIP
    • 说明The DN405 is a four wire 100 ohm platinum resistance temperature detector (RTD) signal conditioning circuit that transforms RTD resistance to a voltage that is proportional to temperature in °C. This device was designed to operate with a 100 ohm IEC/DIN-grade Platinum RTD that exhibits an alpha value of 0.00385!/!/°C. Analog circuit linearization provides typical accuracy of ±0.5°C over a temperature range of -100°C to +400°C. The four wire measurement circuit eliminates the effect of lead resistance that allows the RTD to be remotely located from the DN405 signal conditioning circuit. The DN405, which operates from a single supply voltage of +2.7V to +5.5V, draws only 1.3mA of current, making it ideal for portable applications. The DN405 compensates for the inherent non-linearity of all platinum RTDs. The output voltage of the device is directly proportional to the temperature of the RTD. No digital signal processing is required to make accurate temperature measurements. The four wire capability of the DN405 makes it possible to multiplex several RTDs with one device. This is useful in data