Datasheet LTC2986, LTC2986-1 (Analog Devices) - 9
| Hersteller | Analog Devices |
| Beschreibung | Multi-Sensor High Accuracy Digital Temperature Measurement System with EEPROM |
| Seiten / Seite | 90 / 9 — TYPICAL PERFORMANCE CHARACTERISTICS. Diode Error and Repeatability vs. … |
| Dateiformat / Größe | PDF / 923 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. Diode Error and Repeatability vs. Temperature. Offset vs Temperature. Noise vs Temperature
Modelllinie für dieses Datenblatt
Textversion des Dokuments
LTC2986/LTC2986-1
TYPICAL PERFORMANCE CHARACTERISTICS Diode Error and Repeatability vs Temperature Offset vs Temperature Noise vs Temperature
1.0 2.0 1.2 0.8 1.5 1.0 0.6 1.0 0.4 ) 0.8 0.2 V) 0.5 V RMS 0 0 0.6 ERROR (°C) –0.2 OFFSET (µ –0.5 NOISE (µ 0.4 –0.4 –1.0 –0.6 VDD = 5.25V 0.2 VDD = 5.25V –1.5 V –0.8 DD = 4.1V VDD = 4.1V VDD = 2.85V VDD = 2.85V –1.0 –2.0 0 –40 20 80 140 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 DIODE TEMPERATURE (°C) LTC2986 TEMPERATURE (°C) LTC2986 TEMPERATURE (°C) 29861 G19 29861 G20 29861 G21
One Shot Conversion Current vs ISLEEP vs Temperature Temperature VREFOUT V vs Temperature REFOUT vs T
60 16.0 2.5005 VDD = 5.25V VDD = 5.25V V 15.8 VDD = 4.1V 50 DD = 4.1V VDD = 2.85V 15.6 VDD = 2.85V 2.50025 15.4 40 15.2 (V) (µA) 30 (mA) 15.0 2.5 I SLEEP I IDLE 14.8 V REFOUT 20 14.6 2.49975 14.4 10 14.2 0 0 2.4995 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –30 –10 10 30 50 70 90 110 130 LTC2986 TEMPERATURE (°C) LTC2986 TEMPERATURE (°C) TEMPERATURE (°C) 29861 G22 29861 G23 29861 G24
Channel Input Leakage Current vs Adjacent Channel Offset Error vs Adjacent Channel Offset Error vs Temperature Temperature Input Fault Voltage (VDD = 5V) Input Fault Voltage
1.4 2.5 2.5 125°C 90°C 1.2 25°C 2.0 2.0 –45°C V) V) 1.0 1.5 1.5 0.8 1.0 1.0 0.6 0.5 0.5 INPUT LEAKAGE (nA) 0.4 CH2 OFFSET ERROR (µ CH2 OFFSET ERROR (µ 0 0 0.2 0 –0.5 –0.5 –1 0 1 2 3 4 5 6 4.95 5 5.05 5.1 5.15 5.2 5.25 5.3 5.35 0 –0.05 –0.1 –0.15 –0.2 –0.25 –0.3 –0.35 INPUT VOLTAGE (V) CH1 FAULT VOLTAGE (V) CH1 FAULT VOLTAGE (V) 29861 G25 29861 G26 29861 G27 29861fa For more information www.linear.com/LTC2986 9 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
TYPICAL PERFORMANCE CHARACTERISTICS Diode Error and Repeatability vs Temperature Offset vs Temperature Noise vs Temperature
1.0 2.0 1.2 0.8 1.5 1.0 0.6 1.0 0.4 ) 0.8 0.2 V) 0.5 V RMS 0 0 0.6 ERROR (°C) –0.2 OFFSET (µ –0.5 NOISE (µ 0.4 –0.4 –1.0 –0.6 VDD = 5.25V 0.2 VDD = 5.25V –1.5 V –0.8 DD = 4.1V VDD = 4.1V VDD = 2.85V VDD = 2.85V –1.0 –2.0 0 –40 20 80 140 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 DIODE TEMPERATURE (°C) LTC2986 TEMPERATURE (°C) LTC2986 TEMPERATURE (°C) 29861 G19 29861 G20 29861 G21
One Shot Conversion Current vs ISLEEP vs Temperature Temperature VREFOUT V vs Temperature REFOUT vs T
60 16.0 2.5005 VDD = 5.25V VDD = 5.25V V 15.8 VDD = 4.1V 50 DD = 4.1V VDD = 2.85V 15.6 VDD = 2.85V 2.50025 15.4 40 15.2 (V) (µA) 30 (mA) 15.0 2.5 I SLEEP I IDLE 14.8 V REFOUT 20 14.6 2.49975 14.4 10 14.2 0 0 2.4995 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –30 –10 10 30 50 70 90 110 130 LTC2986 TEMPERATURE (°C) LTC2986 TEMPERATURE (°C) TEMPERATURE (°C) 29861 G22 29861 G23 29861 G24
Channel Input Leakage Current vs Adjacent Channel Offset Error vs Adjacent Channel Offset Error vs Temperature Temperature Input Fault Voltage (VDD = 5V) Input Fault Voltage
1.4 2.5 2.5 125°C 90°C 1.2 25°C 2.0 2.0 –45°C V) V) 1.0 1.5 1.5 0.8 1.0 1.0 0.6 0.5 0.5 INPUT LEAKAGE (nA) 0.4 CH2 OFFSET ERROR (µ CH2 OFFSET ERROR (µ 0 0 0.2 0 –0.5 –0.5 –1 0 1 2 3 4 5 6 4.95 5 5.05 5.1 5.15 5.2 5.25 5.3 5.35 0 –0.05 –0.1 –0.15 –0.2 –0.25 –0.3 –0.35 INPUT VOLTAGE (V) CH1 FAULT VOLTAGE (V) CH1 FAULT VOLTAGE (V) 29861 G25 29861 G26 29861 G27 29861fa For more information www.linear.com/LTC2986 9 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