LTC2984CLX#PBF

LINEAR TECHNOLOGY  LTC2984CLX#PBF  温度传感器芯片, LQFP, 48 引脚

The is a Multi-Sensor High Accuracy Digital Temperature Measurement System with EEPROM, measures a wide variety of temperature sensors and digitally outputs the result, in °C or °F, with 0.1°C accuracy and 0.001°C resolution. The device can measure the temperature of virtually all standard type B, E, J, K, N, S, R, T or custom thermocouples, automatically compensate for cold junction temperatures and linearize the results. The LTC2984 includes excitation current sources and fault detection circuitry appropriate for each type of temperature sensor. It allows direct interfacing to ground referenced sensors without the need for level shifters, negative supply voltages or external amplifiers. All signals are buffered and simultaneously digitized with, three high accuracy, 24-bit ∆∑ ADC"s, driven by an internal 10ppm/°C maximum reference.

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Directly digitizes 2-, 3- or 4-wire RTDs, thermocouples, thermistors and diodes

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On-chip EEPROM stores channel configuration data and custom coefficients

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20 Flexible inputs allow interchanging sensors

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Measures negative thermocouple voltages

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Automatic burn out, short-circuit and fault detection

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Buffered inputs allow external protection

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50Hz/60Hz Simultaneous rejection