Datasheet LTC2983 (Analog Devices) - 7

LTC2983
TYPICAL PERFORMANCE CHARACTERISTICS RTD PT-200 Error and RMS Noise RTD PT-100 Error and RMS Noise RTD NI-120 RTD Error and vs Temperature 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 –400 –200 0 200 400 600 800 1000 –100 0 100 200 300 RTD TEMPERATURE (°C) RTD TEMPERATURE (°C) RTD TEMPERATURE (°C) 2983 G10 2983 G11 2983 G12
2.252k Thermistor Error vs Temperature 3k Thermistor Error vs Temperature 5k Thermistor Error 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 ERROR (°C) –0.2 ERROR (°C) –0.2 ERROR (°C) –0.2 –0.4 –0.4 –0.4 –0.6 –0.6 –0.6 –0.8 –0.8 –0.8 –1.0 –1.0 –1.0 –40 –20 0 20 40 60 80 100 120 140 –40 –20 0 20 40 60 80 100 120 140 –40 –20 0 20 40 60 80 100 120 140 THERMISTOR TEMPERATURE (°C) THERMISTOR TEMPERATURE (°C) THERMISTOR TEMPERATURE (°C) 2983 G19 2983 G20 2983 G21
30k Thermistor Error vs YSI-400 Thermistor Error vs 10k Thermistor Error vs Temperature Temperature 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 ERROR (°C) –0.2 ERROR (°C) –0.2 ERROR (°C) –0.2 –0.4 –0.4 –0.4 –0.6 –0.6 –0.6 –0.8 –0.8 –0.8 –1.0 –1.0 –1.0 –40 –20 0 20 40 60 80 100 120 140 –40 –20 0 20 40 60 80 100 120 140 –40 –20 0 20 40 60 80 100 120 140 THERMISTOR TEMPERATURE (°C) THERMISTOR TEMPERATURE (°C) THERMISTOR TEMPERATURE (°C) 2983 G22 2983 G23 2983 G24 2983fc For more information www.linear.com/LTC2983 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Complete System Electrical Characteristics Pin Configuration ADC Electrical Characteristics Reference Electrical Characteristics Digital Inputs and Digital Outputs Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Timing Diagram Overview Applications Information Thermocouple Measurements Diode Measurements RTD Measurements Thermistor Measurements Direct ADC Measurements Supplemental Information Fault Protection and Anti-Aliasing 2- and 3-Cycle Conversion Modes Running Conversions Consecutively on Multiple Channels MUX Configuration Delay Global Configuration Register Custom Thermocouples Custom RTDs Custom Thermistors Package Description Revision History Typical Application Related Parts