Datasheet LTC2401, LTC2402 (Analog Devices) - 6

LTC2401/LTC2402
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 18 TA = 25°C TA = 25°C TA = 25°C ) 16 2.5 REF 14 12 10 0 2.5 8 6 RMS NOISE (ppm) OFFSET ERROR (ppm) RMS NOISE (ppm OF V –2.5 4 2 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 24012 G10 24012 G11 24012 G12
Noise Histogram RMS Noise vs Code Out Offset Error vs Temperature
350 1.00 5.0 VCC = 5V VCC = 5V VCC = 5V VREF = 5V V V 300 REF = 5V REF = 5V VIN = 0V VIN = –0.3V TO 5.3V VIN = 0V 0.75 TA = 25°C 2.5 250 200 0.50 0 150 RMS NOISE (ppm) 100 NUMBER OF READINGS OFFSET ERROR (ppm) 0.25 –2.5 50 0 0 –5.0 –2 –1 0 1 2 3 –0.3 2.5 5.3 –55 –30 –5 20 45 70 95 120 OUTPUT CODE (ppm) CODE OUT (HEX) TEMPERATURE (°C) 24012 G13 24012 G14 24012 G15
Full-Scale Error Full-Scale Error vs Temperature vs Reference Voltage Full-Scale Error vs VCC
5.0 60 6 VCC = 5V VCC = 5V VREF = 2.5V VREF = 5V VIN = VREF VIN = 2.5V V 50 IN = 5V 5 TA = 25°C 2.5 40 4 0 30 3 20 2 –2.5 FULL-SCALE ERROR (ppm) FULL-SCALE ERROR (ppm) FULL-SCALE ERROR (ppm) 10 1 –5.0 0 0 –55 –30 –5 20 45 70 95 120 0 1 2 3 4 5 2.7 3.2 3.7 4.2 4.7 5.2 TEMPERATURE (°C) REFERENCE VOLTAGE (V) VCC 24012 G16 24012 G17 24012 G18 6