Datasheet LTC2499 (Analog Devices) - 9

LTC2499
typical perForMance characteristics Sleep Mode Current Conversion Current Integral Nonlinearity (2x Speed vs Temperature vs Output Data Rate Mode; VCC = 5V, VREF = 5V)
2.0 500 3 fO = GND VREF = VCC V 1.8 CC = 5V IN+ = GND V 450 REF = 5V IN– = GND 2 1.6 VIN(CM) = 2.5V fO = EXT OSC f 400 O = GND 1.4 TA = 25°C 1 1.2 350 VCC = 5V 25°C, 90°C 1.0 300 0 0.8 INL (µV) 250 0.6 V V CC = 5V –1 CC = 2.7V SUPPLY CURRENT (µA) 200 SLEEP MODE CURRENT (µA) 0.4 –45°C –2 0.2 150 VCC = 3V 0 100 –3 –45 –30 –15 0 15 30 45 60 75 90 0 10 20 30 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 TEMPERATURE (°C) OUTPUT DATA RATE (READINGS/SEC) INPUT VOLTAGE (V) 2499 G25 2499 G26 2499 G27
Integral Nonlinearity (2x Speed Integral Nonlinearity (2x Speed Noise Histogram Mode; VCC = 5V, VREF = 2.5V) Mode; VCC = 2.7V, VREF = 2.5V) (2x Speed Mode)
3 3 16 VCC = 5V VCC = 2.7V 10,000 CONSECUTIVE RMS = 0.85µV VREF = 2.5V VREF = 2.5V READINGS AVERAGE = 0.184mV 2 14 VIN(CM) = 1.25V 2 VIN(CM) = 1.25V VCC = 5V fO = GND fO = GND 12 VREF = 5V ) V 1 1 IN = 0V REF T 85°C REF 85°C 10 A = 25°C 0 0 8 6 INL (ppm OF V –1 –45°C, 25°C INL (ppm OF V –1 –45°C, 25°C NUMBER OF READINGS (%) 4 –2 –2 2 –3 –3 0 –1.25 –0.75 –0.25 0.25 0.75 1.25 –1.25 –0.75 –0.25 0.25 0.75 1.25 179 181.4 183.8 186.2 188.6 INPUT VOLTAGE (V) INPUT VOLTAGE (V) OUTPUT READING (µV) 2499 G28 2499 G29 2499 G30
RMS Noise vs VREF Offset Error vs VIN(CM) (2x Speed Mode) (2x Speed Mode)
1.0 200 V 198 CC = 5V VREF = 5V 0.8 196 VIN = 0V fO = GND 194 TA = 25°C 0.6 192 190 0.4 188 RMS NOISE (µV) VCC = 5V OFFSET ERROR (µV) 186 V 0.2 IN = 0V V 184 IN(CM) = GND fO = GND 182 TA = 25°C 0 180 0 1 2 3 4 5 –1 0 1 2 3 4 5 6 VREF (V) VIN(CM) (V) 2499 G31 2499 G32 2499fe For more information www.linear.com/LTC2499 9 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics (normal speed) Electrical Characteristics (2x Speed) Converter Characteristics Analog Input and Reference I2C Inputs And Digital Outputs Power Requirements Digital Inputs And Digital Outputs I2C Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Applications Information Package Description Revision History Related Parts