MCP3550/1/3 - Microchip

MCP3550/1/3Note: Unless otherwise specified, T A = +25°C, V DD = 5V, V REF = 2.5V, V SS = 0V, V CM = V REF /2, V IN + = V IN -.All ppm units are ratioed against 2*V REF . Unless otherwise noted, graphs apply to entire MCP3550/1/3 family.Full Scale Error (ppm)5432Positive Full Scale10-1-2Negative Full Scale-3-4-52.5 3 3.5 4 4.5 5 5.5V DD (V)FIGURE 2-13: Full Scale Error vs. V DD .Number of Occurrences4000V DD = 5V3500 V REF = 2.5VV CM = 1.25V3000 V IN = 0VT2500 A = 25C163842000 consecutive readings150010005000-15 -10 -5 0 5 10 15Output Code (LSB)FIGURE 2-16: MCP3550/1 Output NoiseHistogram.Full Scale Error (ppm)10864Positive Full Scale20-2-4-6Negative Full Scale-8-10-50 -25 0 25 50 75 100 125Temperature (°C)FIGURE 2-14:Temperature.Full Scale Error vs.Number of Occurrences180016001400120010008006004002000V DD = 5VV REF = 2.5VV CM = 1.25VV IN = 0VT A = 25°C16384consecutivereadingsFIGURE 2-17:Histogram.-15 -10 -5 0 5 10 15Output Code (LSB)MCP3553 Output NoiseFull Scale Error (ppm)1086420-2-4-6-8-10Positive Full ScaleNegative Full Scale-50 -25 0 25 50 75 100 125Temperature (°C)FIGURE 2-15: Full Scale Error vs.Temperature (V REF = 5.0V).TUE (ppm)5.04.03.02.01.00.0-1.0-2.0-3.0-4.0-5.0-2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5V IN (V)FIGURE 2-18: Total Unadjusted Error(TUE) vs. Input Voltage (V DD = 2.7V).© 2009 Microchip Technology Inc. DS21950E-page 9