Design Question Vref Rref RG RM Al VOUT Digital Input, DIN DAC1 n VDAC Figure 1 Figure 1 shows the circuit used to condition the output of the n - bit Digital to Analog Converter "DAC1" having a digital input value of Din. DAC1 may be assumed to have a voltage output with zero source resistance coded in “straight binary" such that For a binary input of Din= 000...000 the output voltage VDAC is OV For a binary input of Din= 111...111 the output voltage VDAC is Vref Where Vref is a positive voltage reference. (c) Hence show that the error in vout due to opamp DC input current and voltage errors including both bias and offset currents is given by: Voute = 2Vos + Ig|2RM – Rres|+ los(2Rm)

For an eight-bit D/A converter having a range of 5 V, convert 10110110 into an analog sample value (consider using the mathematical method – Hint: convert to decimal and multiply by step size).

2, 2.3, 2 1. Design 3 bit Analog to digital converter. 2. Consider a platinum resistance temperature sensor, which has a resistance at 0°C of 100 ohms and forms one arm of a Wheatstone bridge. The bridge is balanced, at this temperature, with each of the other arms also being 100 ohms. If the temperature coefficient of resistance of platinum is 0.0039/K, what will be the output voltage from the bridge per degree change in temperature if the load across the output can be assumed infinite? The supply voltage, with negligible internal resistance, is 6.0v. The variation of the resistance of the platinum with temperature can be represented by Rt = R0(1+ at) Where Rt is the resistance at t (°C), R0 the resistance at 0°C and a the Temperature coefficient of resistance. 3. Simplify the Boolean function below and draw the Combinatorial logic of Simplified Function. (a + b)(a + b') 4. Implement a logic function and circuit diagram of truth table below. ABC F A 5. B 000 001 010 011 100 101 110…

A. Detemine the value of the collector resistor in an npn transistor amplifier with Ppc = 250, VBB = 2.5 V, Vcc = 9 V, VCE = 4 V, and Rg = 100 k2. B. Detemine Icsat) for the transistor in below Figure. What is the value of IB necessary to produce saturation? What minimum value of VIN is necessary for saturation? Assume %3D VCE(sat) = 0 V. +5 V 10 kN Rg VINO BDc = 150 1.0 MN