Datasheet LTC2488 (Analog Devices) - 6

LTC2488
TYPICAL PERFORMANCE CHARACTERISTICS Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity (VCC = 5V, VREF = 5V) (VCC = 5V, VREF = 2.5V) (VCC = 2.7V, VREF = 2.5V)
3 3 3 VCC = 5V VCC = 5V VCC = 2.7V VREF = 5V VREF = 2.5V VREF = 2.5V 2 VIN(CM) = 2.5V 2 VIN(CM) = 1.25V 2 VIN(CM) = 1.25V FO = GND FO = GND FO = GND ) 1 –45°C 1 1 REF 25°C REF –45°C, 25°C, 85°C REF –45°C, 25°C, 85°C 0 0 0 85°C INL (ppm OF V –1 INL (ppm OF V –1 INL (ppm OF V –1 –2 –2 –2 –3 –3 –3 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 –1.25 –0.75 –0.25 0.25 0.75 1.25 –1.25 –0.75 –0.25 0.25 0.75 1.25 INPUT VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 2488 G03 2488 G01 2488 G02
Total Unadjusted Error Total Unadjusted Error Total Unadjusted Error (VCC = 5V, VREF = 5V) (VCC = 5V, VREF = 2.5V) (VCC = 2.7V, VREF = 2.5V)
12 12 12 VCC = 5V VCC = 5V VCC = 2.7V VREF = 5V VREF = 2.5V 85°C VREF = 2.5V 8 VIN(CM) = 2.5V 8 VIN(CM) = 1.25V 8 VIN(CM) = 1.25V FO = GND 85°C FO = GND FO = GND 85°C ) 25°C ) 25°C ) 25°C 4 4 4 REF REF REF –45°C 0 –45°C 0 –45°C 0 TUE (ppm OF V –4 TUE (ppm OF V –4 TUE (ppm OF V –4 –8 –8 –8 –12 –12 –12 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 –1.25 –0.75 –0.25 0.25 0.75 1.25 –1.25 –0.75 –0.25 0.25 0.75 1.25 INPUT VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 2488 G04 2488 G05 2488 G06
Offset Error vs VIN(CM) Offset Error vs Temperature Offset Error vs VCC
0.3 0.3 0.3 VCC = 5V VCC = 5V REF+ = 2.5V VREF = 5V VREF = 5V REF– = GND ) 0.2 VIN = 0V ) 0.2 VIN = 0V ) 0.2 VIN = 0V REF TA = 25°C REF FO = GND REF VIN(CM) = GND T 0.1 0.1 0.1 A = 25°C 0 0 0 –0.1 –0.1 –0.1 OFFSET ERROR (ppm OF V –0.2 OFFSET ERROR (ppm OF V –0.2 OFFSET ERROR (ppm OF V –0.2 –0.3 –0.3 –0.3 –1 0 1 2 3 4 5 6 –45 –30 –15 0 15 30 45 60 75 90 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 VIN(CM) (V) TEMPERATURE (°C) VCC (V) 2488 G07 2488 G08 2488 G09 2488fb 6 For more information www.linear.com/LTC2488