特徴

• AD8494…AD8497 Thermocouple Amplifiers, Analog Devices. A range of dedicated thermocouple amplifiers from Analog Devices. These integrated devices incorporate precision instrumentation amplifiers and thermocouple cold junction compensation to provide a high level output directly from a type J or K thermocouples. The following versions are available: AD8494 for type J thermocouples, optimised operating temperature range 0°C to 50°C AD8495 for type K thermocouples, optimised operating temperature range 0°C to 50°C AD8496 for type J thermocouples, optimised operating temperature range 25°C to 100°C AD8497 for type K thermocouples, optimised operating temperature range 25°C to 100°C All versions have a measurement range equal to the full range of the relevant thermocouple type. ; Low cost and easy to use ; Can be used as a stand-alone 5 mV/°C thermometer ; Pre-trimmed for J or K type thermocouples to 1°C initial accuracy ; Wide power supply range: 2.7 to 36V or ±2.7 to ±18V ; Internal cold junction compensation ; High impedance differential inputs ; Thermocouple break detection