Low Power Multi-Channel, Thermocouple Measurement System with Cold Junction Compensation
Referenzdesign unter Verwendung des Teils AD8495 von Analog Devices
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- Temperature Control System
Beschreibung
- Low Power multi-channel thermocouple Measurement System is a flexible, 4-channel, low power thermocouple measurement circuit with an overall power consumption of less than 8 mW. The circuit has a multiplexed front end, followed by an instrumentation amplifier that performs cold junction compensation and converts thermocouple output to a voltage with a precise scale factor of 5 mV/C. The error is less than 2 C, over a measurement range of -25 C to +400 C and is primarily due to thermocouple nonlinearity. A nonlinearity correction algorithm reduces the error to less than 0.5 C over a 900 C measurement range
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ADR3412ARJZ-R7 | Analog Devices | Voltage References | V-Ref Precision 1.2V 10mA 6-Pin SOT-23 T/R | In den Warenkorb | |
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ADG1609BCPZ-REEL7 | Analog Devices | Analog Switch Multiplexers | Analog Multiplexer Dual 4:1 16-Pin LFCSP EP T/R | In den Warenkorb | |
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