Datasheet LTC2404, LTC2408 (Analog Devices) - 7

LTC2404/LTC2408
W U TYPICAL PERFOR A CE CHARACTERISTICS RMS Noise vs Reference Voltage Offset Error vs VCC RMS Noise vs VCC
20 5.0 5.0 VCC = 5V VREF = 2.5V VREF = 2.5V TA = 25°C TA = 25°C TA = 25°C ) 15 2.5 REF 10 0 2.5 RMS NOISE (ppm) OFFSET ERROR (ppm) RMS NOISE (ppm OF V 5 – 2.5 0 – 5.0 0 0 1 2 3 4 5 2.7 3.2 3.7 4.2 4.7 5.2 2.7 3.2 3.7 4.2 4.7 5.2 REFERENCE VOLTAGE (V) VCC VCC 24048 G10 24048 G11 24048 G12
Noise Histogram RMS Noise vs CODE OUT Offset Error vs Temperature
1500 1.00 5.0 VCC = 5V V V CC = 5V CC = 5V VREF = 5V V V REF = 5V REF = 5V VIN = 0V V V IN = – 0.3V TO 5.3V IN = 0V 0.75 TA = 25°C 2.5 1000 0.50 0 500 RMS NOISE (ppm) NUMBER OF READINGS OFFSET ERROR (ppm) 0.25 – 2.5 0 0 – 5.0 –1.0 – 0.5 0 0.5 1.0 1.5 0 7FFFFF FFFFFF – 50 –25 0 25 50 75 100 125 OUTPUT CODE (ppm) CODE OUT (HEX) TEMPERATURE (°C) 24048 G13 24048 G14 24048 G15
Full-Scale Error Full-Scale Error vs Temperature vs Reference Voltage Full-Scale Error vs VCC
5.0 10.0 6 VCC = 5V VCC = 5V VREF = 5V VIN = VREF VIN = 5V 5 2.5 7.5 4 0 5.0 3 2 – 2.5 FULL-SCALE ERROR (ppm) FULL-SCALE ERROR (ppm) 2.5 FULL-SCALE ERROR (ppm) 1 VREF = 2.5V VIN = 2.5V TA = 25°C – 5.0 0 0 – 50 –25 0 25 50 75 100 125 0 1 2 3 4 5 2.7 3.2 3.7 4.2 4.7 5.2 TEMPERATURE (°C) REFERENCE VOLTAGE (V) VCC 24048 G16 24048 G17 24048 G18 7