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LTC2431CMS Datasheet(PDF) 6 Page - Linear Technology |
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LTC2431CMS Datasheet(HTML) 6 Page - Linear Technology |
6 / 40 page LTC2430/LTC2431 6 24301f TYPICAL PERFOR A CE CHARACTERISTICS Total Unadjusted Error (VCC = 5V, VREF = 5V) INPUT VOLTAGE (V) –2.5 1 3 5 1.5 24301 G01 –1 –3 0 2 4 –2 –4 –5 –1.5 –2 – 0.5 –1 0.5 1 2 0 2.5 VCC = 5V VREF = 5V VINCM = VINCM = 2.5V FO = GND 85 °C 25 °C –45 °C INPUT VOLTAGE (V) –1.25 1 3 5 0.75 24301 G02 –1 –3 0 2 4 –2 –4 –5 –0.75 –1 –0.25 –0.5 0.25 0.5 1 0 1.25 VCC = 5V VREF = 2.5V VINCM = VINCM = 1.25V FO = GND 85 °C –45 °C 25 °C INPUT VOLTAGE (V) –1.25 20 15 10 5 0 –5 –10 –15 –20 0.75 24301 G03 0.25 1.25 0.5 –1 0 1 VCC = 2.7V VREF = 2.5V VINCM = VINCM = 1.25V FO = GND 85 °C –45 °C 25 °C –0.75 –0.25 –0.5 Total Unadjusted Error (VCC = 5V, VREF = 2.5V) Total Unadjusted Error (VCC = 2.7V, VREF = 2.5V) Integral Nonlinearity (VCC = 5V, VREF = 5V) INPUT VOLTAGE (V) –2.5 1 3 5 1.5 24301 G04 –1 –3 0 2 4 –2 –4 –5 –1.5 –2 –0.5 –1 0.5 1 2 0 2.5 VCC = 5V VREF = 5V VINCM = VINCM = 2.5V FO = GND 85 °C 25 °C –45 °C Integral Nonlinearity (VCC = 5V, VREF = 2.5V) INPUT VOLTAGE (V) –1.25 1 3 5 0.75 24301 G05 –1 –3 0 2 4 –2 –4 –5 –1 0.25 0.5 1 0 1.25 VCC = 5V VREF = 2.5V VINCM = VINCM = 1.25V FO = GND 85 °C –45 °C 25 °C –0.75 –0.25 –0.5 Integral Nonlinearity (VCC = 2.7V, VREF = 2.5V) INPUT VOLTAGE (V) –1.25 20 15 10 5 0 –5 –10 –15 –20 0.75 24301 G06 0.25 1.25 0.5 –1 0 1 VCC = 2.7V VREF = 2.5V VINCM = VINCM = 1.25V FO = GND 85 °C –45 °C 25 °C –0.75 –0.25 –0.5 Noise Histogram (Output Rate = 7.5Hz, VCC = 5V, VREF = 5V) OUTPUT CODE (ppm OF VREF) –2.5 40 35 30 25 20 15 10 5 0 1.5 24301 G07 –1.5 –0.5 0.5 2.5 1 –2 –1 0 2 10,000 CONSECUTIVE READINGS VCC = 5V VREF = 5V VIN = 0V VINCM = 2.5V FO = GND TA = 25°C GAUSSIAN DISTRIBUTION m = – 0.25ppm σ = 0.550ppm Noise Histogram (Output Rate = 7.5Hz, VCC = 2.7V, VREF = 2.5V) OUTPUT CODE (ppm OF VREF) –4 12 16 20 4 24301 G08 8 4 10 14 18 6 2 0 –2 –3 0 –1 23 5 1 6 10,000 CONSECUTIVE READINGS VCC = 2.7V VREF = 2.5V VIN = 0V VINCM = 2.5V FO = GND TA = 25°C GAUSSIAN DISTRIBUTION m = –1.07ppm σ = 1.06ppm RMS Noise vs Input Differential Voltage INPUT DIFFERENTIAL VOLTAGE (V) –2.5 0.6 0.8 1.0 1.5 24301 G10 0.4 0.2 0.5 0.7 0.9 0.3 0.1 0 –1.5 –2 – 0.5 –1 0.5 1 2 0 2.5 VCC = 5V VREF = 5V VINCM = 2.5V FO = GND TA = 25°C |
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