Datasheet LTC2493 (Analog Devices) - 9

LTC2493
Typical perForMance characTerisTics 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 14 READINGS AVERAGE = 0.184mV 2 VIN(CM) = 1.25V 2 VIN(CM) = 1.25V VCC = 5V fO = GND fO = GND 12 VREF = 5V ) VIN = 0V 1 1 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) 2493 G28 2493 G29 2493 G30
RMS Noise vs VREF Offset Error vs VIN(CM) Offset Error vs Temperature (2x Speed Mode) (2x Speed Mode) (2x Speed Mode)
1.0 200 240 V V 198 CC = 5V CC = 5V VREF = 5V 230 VREF = 5V 0.8 196 VIN = 0V VIN = 0V fO = GND 220 VIN(CM) = GND V) 194 TA = 25°C V) f V) O = GND 0.6 192 210 190 200 0.4 188 RMS NOISE (µ 190 VCC = 5V OFFSET ERROR (µ 186 OFFSET ERROR (µ V 180 0.2 IN = 0V V 184 IN(CM) = GND fO = GND 182 170 TA = 25°C 0 180 160 0 1 2 3 4 5 –1 0 1 2 3 4 5 6 –45 –30 –15 0 15 30 45 60 75 90 VREF (V) VIN(CM) (V) TEMPERATURE (°C) 2493 G31 2493 G32 2493 G33 2493fe For more information www.linear.com/LTC2493 9 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration 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 Typical Application Related Parts