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Figure P16.54 is a classic CMOS logic gate. (a) What is the logic function performed by the circuit? (b) Design the PMOS network. (c) Determine the transistor W/L ratios to provide symmetrical switching times at twice the switching speed as the basic CMOS inverter with
Figure P16.54
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Microelectronics: Circuit Analysis and Design
- a) A standard TTL inverter gate is shown in the figure. The supply voltage is 5V. Calculate the output voltage for both logic low and logic high input cases assuming input voltages respectively as 0.11V and 4.2V. Br= 130; BR = 0.24. You can make approximations when needed. Br = IcIs active region; BR = IE/ls inverse active region b) Assume you connect a resistor of 1.8K to the output of the circuit when the output is at logic high. What will be the change in the output voltage? 1302 R3 1.6k2 R, 4k2 Input o T, Output T, V, V. IkQ R,arrow_forwardQ5 Consider a four-input CMOS NAND logic gate. Draw the circuit, then: Q6 a) Determine the W/L ratios of the transistors to provide for symmetrical switching based blcon the CMOS inverter design with (W/L) 2 and (W/L), 4. b) If the load capacitance of the NOR gate becomes 5 times the original value, determine the required W/L ratios to provide the same switching speed as the logic gate in part (a). Design a CMOS circuit to implement the logic function. The design should not include a CMOS inverter at the output. F= ABC + ACD + ACDarrow_forwardImplement logic function shown below with static CMOS gate. Out = ABC + ĀB + BC + ACarrow_forward
- What is the power-delay product for a symmetrical CMOSinverter with (W/L)N = 2/1, (W/L)P = 5/1,VDD = 2.5 V, and C = 0.3 pF? (b) Repeat forVDD = 2.0 V. (c) Repeat for VDD = 1.8 V.? How much power does the inverter dissipate if it is switching at a frequency of 100 MHz?arrow_forwardDescribe the functionality of a three-state inverter.arrow_forwarde) Explain the terms VSC and ISC. f) Explain the applications of DC-Link invertes. g) Explain the differences of Half and Full Bridge inverters.arrow_forward
- Assume Vth = 1V and k = 50mA/V2. Given the schematic below, do the following: 1) Indicate and verify the state of each MOSFET and ?0 for the following input combinations. Fill-out the table below for each assumed state of the MOSFET for every input combination. Use ?ds,on approximation for linear operation. 2) Determine what kind of logic circuit is implemented in the circuit.arrow_forward7) The following figure shows a transistor-level (CMOS) circuit for some logic gate. Sketch the logic gate for the CMOS gate. Choices: a) NAND gate b) AND gate c) OR gate d) NOR gatearrow_forwardWhat will be the fundamental frequency for the following circuit if each inverter delay is 100 nsec? Outputarrow_forward
- Using the sine PWM method with the full bridge inverter below, it is desired to generate a voltage of 50 Hz on the serial RL load. A voltage of 120 V DC is applied to the input of the inverter circuit. Amplitude modulation rate ma -0.9 and frequency modulation rate mf -19. The resistance of the series RL load is 15 OHM and the coil inductance is 40 mH. a) What is the power drawn by the load resistor?b) What is the total harmonic distortion value (THD) of the load current?arrow_forward(a) Figure Q.4 (a) shows a combinational logic cireuit with output, Z and Table Q.4(a) depicts the delay for each logic gate in nanoseconds (ns). Determine the critical path and critical path delay in nanoseconds (ns). В Figure Q.4(a) Table Q.4 (a) Logic Gate NOT Delay (ns) 4 OR 8 AND 16 NAND 12 NOR 10 XOR 28 XNOR 32arrow_forwardWhat is the switching threshold (where does vI = vO) for a minimum size inverter in which both W/L ratios are 2/1 if VDD = 1.8 V and VTN = −VTP = 0.45 V?arrow_forward
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