Datasheet LTC2986, LTC2986-1 (Analog Devices) - 7

LTC2986/LTC2986-1
TYPICAL PERFORMANCE CHARACTERISTICS Type J Thermocouple Error and Type K Thermocouple Error and Type N Thermocouple Error and RMS Noise vs Temperature RMS Noise vs Temperature RMS Noise vs Temperature
1.0 1.0 1.0 0.8 0.8 0.8 0.6 0.6 0.6 0.4 0.4 0.4 0.2 0.2 0.2 0 0 0 –0.2 –0.2 –0.2 –0.4 –0.4 –0.4 ERROR/RMS NOISE (°C) ERROR/RMS NOISE (°C) ERROR/RMS NOISE (°C) –0.6 –0.6 –0.6 –0.8 RMS NOISE –0.8 RMS NOISE –0.8 RMS NOISE ERROR ERROR ERROR –1.0 –1.0 –1.0 –400 0 400 800 1200 1600 –400 0 400 800 1200 1600 –400 0 400 800 1200 1600 THERMOCOUPLE TEMPERATURE (°C) THERMOCOUPLE TEMPERATURE (°C) THERMOCOUPLE TEMPERATURE (°C) 29861 G01 29861 G02 29861 G03
Type R Thermocouple Error and Type S Thermocouple Error and Type T Thermocouple Error and RMS Noise vs Temperature RMS Noise vs Temperature RMS Noise vs Temperature
1.0 1.0 1.0 0.8 0.8 0.8 0.6 0.6 0.6 0.4 0.4 0.4 0.2 0.2 0.2 T 0 0 0 –0.2 –0.2 –0.2 –0.4 –0.4 –0.4 ERROR/RMS NOISE (°C) ERROR/RMS NOISE (°C) ERROR/RMS NOISE (°C) –0.6 –0.6 –0.6 –0.8 RMS NOISE –0.8 RMS NOISE –0.8 RMS NOISE ERROR ERROR ERROR –1.0 –1.0 –1.0 –400 0 400 800 1200 1600 2000 –400 0 400 800 1200 1600 2000 –400 –200 0 200 400 600 THERMOCOUPLE TEMPERATURE (°C) THERMOCOUPLE TEMPERATURE (°C) THERMOCOUPLE TEMPERATURE (°C) 29861 G04 29861 G05 29861 G06
Type E Thermocouple Error and Type B Thermocouple Error and RTD PT-1000 Error and RMS RMS Noise vs Temperature RMS Noise vs Temperature Noise vs Temperature
1.0 1.0 1.0 0.8 0.8 0.8 0.6 0.6 0.6 0.4 0.4 0.4 0.2 0.2 0.2 0 0 0 –0.2 –0.2 –0.2 –0.4 –0.4 –0.4 ERROR/RMS NOISE (°C) ERROR/RMS NOISE (°C) ERROR/RMS NOISE (°C) –0.6 –0.6 –0.6 –0.8 RMS NOISE –0.8 RMS NOISE –0.8 RMS NOISE ERROR ERROR ERROR –1.0 –1.0 –1.0 –400 0 400 800 1200 400 800 1200 1600 2000 –400 0 400 800 THERMOCOUPLE TEMPERATURE (°C) THERMOCOUPLE TEMPERATURE (°C) RTD TEMPERATURE (°C) 29861 G07 29861 G08 29861 G09 29861fa For more information www.linear.com/LTC2986 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Complete System Electrical Characteristics ADC Electrical Characteristics Reference Electrical Characteristics Digital Inputs and Digital Outputs LTC2986-1 EEPROM Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Timing Diagram Overview Applications Information EEPROM Overview (LTC2986-1) EEPROM Read/Write Validation EEPROM Write Operation EEPROM Read Operation (LTC2986-1) Thermocouple Measurements Diode Measurements RTD Measurements Thermistor Measurements Global Configuration Register Input Overvoltage Protection – Overview Active Analog Temperature Sensors Direct ADC Measurements 2- and 3-Cycle Conversion Modes Running Conversions Consecutively on Multiple Channels Entering/Exiting Sleep Mode MUX Configuration Delay Reference Considerations Custom Thermocouples Custom RTDs Custom Thermistors Package Description Revision History Typical Application Related Parts