Consider the de transfer characteristics shown in Figure 11.5 . Determine the value of the differential-mode input voltage that results in (a)
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Microelectronics: Circuit Analysis and Design
- The transistor parameters for the circuit in Figure P11.9 are: B = 100, VBE (On) = 0.7 V, and VA = ∞o. (a) Determine RE such that IE = 150 μΑ. (b) Find Ad, Acm, and CMRRB for a one-sided output at vo2. (c) Determine the differential- and common-mode input resistances. Rc-50 k Rg = 0.5 kΩ www VI www 21 Figure P11.9 +10 V VOLVO2 IE RE -10 V ? Rc = 50 kΩ 22 Rg = 0.5 kΩ ww S'arrow_forwardcircuits by using the small signal models of the transistor. Assume the Early voltage of the transistors are infinitely large. Calculate the small-signal input and output impedances of the following Vcc R1 R1 Rout VB RE Rin R2arrow_forwarda) Calculate the VA voltage value.b) Given the input voltage (Vin) waveformin the above Op-amp circuit, Vtl (low)and Vtu (high) hysteresis crossoverCalculate the voltages. c) At the Vtl and Vtu transitions of the Vo voltageCalculate the position changes.arrow_forward
- ........ (Figure-1) R. RB= 380kN,Rc= 1kN B = 100, VBB = Vcc=12V RB ww Vec CC ......... I, V CE СЕ V ВЕ BB Q-1-b) Describe briefly the input / output characteristics and application of Common Emitter BJT Configurationarrow_forwardQUESTION 12: The differential amplifier shown in Figure P11.60 has a pair of pnp bipolars as input devices and a pair of npn bipolars connected as an active load. The circuit is biased by Io=0.24 mA, and the transistor parameters are ß = 80 , VẬP=90 V, and VAN = 115 V. (a) Determine Io such that the de currents in the diff-amp are balanced. (b) Find the open-circuit differential-mode voltage gain. (c) Determine the differential-mode voltage gain if a load resistance R1 = 260 k2 is connected to the output. Io (HA) Format : 4.595 Ad (open circuit) Format : 4594.5 Ag (closed loop) Format : 796.4 V+ Q2 Oa 어 RL Q3 Q4 V-arrow_forwardConsider the circuit in Figure 1 below. Explain the effects of Rs and RL in the circuit parameters (Voltage and Current Gains, and the Input and Output Impedances) of the amplifier?arrow_forward
- QUESTION 2: The differential amplifier in Figure P11.4 is biased with a three-transistor current source. The transistor parameters: B = 85 , VBE(on) = 0.7 V, and V= 0. Determine a new value of R1 such that VCE4 = 1.3 V. What are the values of Ic4, Ic2, and I4? Ic4 (mA) Format : 4.2 Ic2 (mA) Format : 8.382 I (mA) Format : 5.576 R1 (kN) Format : 5.969 +5 V 8.5 k2 2 k2 2 kQ Q4 VCE4 Qs Q3 Q2 VCE2 -5 V Figure P11.4 wwarrow_forwardThe common-mode gain is ........... 1. very high 2. very low 3. always unity 4. unpredictablearrow_forwardSketch the de load line, quiescent collector current, quiescent voltsge, input power, output power and maximum efficiency of the circuit shown an Figure. The input results in a base current of 5 mA peak to peak What maximum output power can be delivered by the circuit, if the input voltage is changed resulting in a base current of 10mA peak to peak and hence find the maximum etficiency. cc=15 V R =18 2 -25arrow_forward
- 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) (A points)arrow_forward4) Consider the clamping circuit below, assume Vref=3 V and Vin=5sin(wt) ..Draw the output voltage waveform. Clearly mark the max and min of the voltage.. Vrefarrow_forwardFigure 1(a) shows a series fed class A amplifier circuit. In order to achieve the maximum efficiency, the Q point must be located at the center of the DC load line as shown in Figure 1(b). This generates the maximum output current swing of Icmax (p – p) RC and the maximum output voltage swing is VCEmax(p – p) = Vcc Assume that the maximum input de power is (1 Vcc Pimax(dc) = Vcc!cQ(max)=Vcc \2° Rc. 2Rc Find the maximum efficiency, 7 of this circuit.arrow_forward
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