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AD7747 Fiches technique(PDF) 9 Page - Analog Devices |
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AD7747 Fiches technique(HTML) 9 Page - Analog Devices |
9 / 29 page AD7747 Rev. 0 | Page 8 of 28 TYPICAL PERFORMANCE CHARACTERISTICS 80 –80 –8 –7 –6 –5 –4 –3 –1 –2 8 INPUT CAPACITANCE (pF) 60 40 20 0 –20 –40 –60 01 23 456 7 Figure 4. Capacitance Input Integral Nonlinearity; VDD = 5 V, CAPDAC = 0x3F 2000 –3000 –50 150 TEMPERATURE (ºC) 1000 0 –1000 –2000 –25 0 25 50 75 100 125 GAIN TC ≈ –28ppm/ºC Figure 5. Capacitance Input Gain Drift vs. Temperature; VDD = 5 V, CIN(+) to GND = 8 pF .20 –0.30 –50 150 TEMPERATURE (ºC) –25 0 25 50 75 100 125 .15 .10 .050 –0.05 –0.10 –0.15 –0.20 –0.25 Figure 6. Capacitance Input Offset Drift vs. Temperature; VDD = 5 V, CIN(+) Open 10 –50 0 600 500 CAPACITANCE SHLD TO GND (pF) 0 –20 –10 –30 –40 50 100 150 200 250 300 350 400 450 550 2.7V 3.0V 3.3V 5.0V Figure 7. Capacitance Input Error vs. Capacitance Between SHLD and GND; CIN(+) to GND = 8 pF, VDD = 2.7 V, 3 V, 3.3 V, and 5 V 10 –50 0 600 500 CAPACITANCE SHLD TO GND (pF) 0 –20 –10 –30 –40 50 100 150 200 250 300 350 400 450 550 2.7V 3.0V 3.3V 5.0V Figure 8. Capacitance Input Error vs. Capacitance Between SHLD and GND; CIN(+) to GND = 25 pF, VDD = 2.7 V, 3 V, 3.3 V, and 5 V 10 –50 0 600 500 CAPACITANCE CIN TO SHLD (pF) 0 –20 –10 –30 –40 50 100 150 200 250 300 350 400 450 550 2.7V 3.0V 3.3V 5.0V Figure 9. Capacitance Input Error vs. Capacitance Between CIN(+) and SHLD; CIN(+) to GND = 8 pF, VDD = 2.7 V, 3 V, 3.3 V, and 5V |
Numéro de pièce similaire - AD7747_17 |
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Description similaire - AD7747_17 |
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