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Esc 7. A summing amplifier based 4-bit DAC circuit is shown in the figure (all the Tab resistances and input voltage ve can be found in the figure). What is the output voltage Vout of the digital code 1101? MSB BIT 2 BIT 3 Cap LSB Four-bit logic gate array 8 = -10 V 10 kQ 20 ks R = 5 kQ 40 km 280 KS Current summing bus Figure 4.5 Schematic diagram of a simple 4-bit digital-to-analog converter. A) 3.125 V B) 5.625 V C) 7.250 V D) 8.125 V dy tedx dx 8. A system can be described by the equation: 3 a y -+5x -10y = dt 2 dt dt What is the static sensitivity of the system? A) W/ N B) 4 ; C)