Electronics and Pulse Techniques Questions

What is logic family? Describe the main characteristics of logic families..

Explain the following terms: RTL, DTL, TTL, ECL.

Draw and describe the circuit diagram for three input NAND and NOR gate using CMOS logic.

What is totem pole output in TTL gate? Give its description with diagram. Why  totem pole output cannot be connected together.

Write the advantages and disadvantages of CMOS Logic family.

Is the semiconductor logic devices temperature sensitive? What is the operating temperature for them?

Define shift register. What are the different types of shift type?

What are the two types of shift register counters?

Explain: PROM, EPROM, and EEPROM

Describe programmable logic array. How iit differs from ROM.

Describe in details the Schmitt trigger circuit using transistor. Also write some application of Schmitt trigger circuit.

Write the importance (s) of different threshold levels for upper and lower part of signal wave.

Write short note on IC fabrication process.

Define step size, full scale, percent resolution of a digital to analog converter.

What is the function of a transducer and actuator during analog to digital converstion?

Compare the step size percent resolution of a DAC with an eight-bit binary input with those of a DAC having an eight-bit BCD input. Determine the weight of each bit for the BCD DAC. Assume 990mV full scale for each DAC.

What is op-amp? Describe its basic working principle with diagram.

Draw a three bit digital to analog circuit with voltage output using on-amp.

What is R/2R ladder DAC? Explain its functionality with circuit diagram. Mention its advantages.

How opto-electronic oscillator works? Describe with necessary diagram.

Write the applications of blocking oscillator.

Mention names of different types of mulivibrator and describe the operation of any one of them with diagram.

What are Flash memories? Describe the role of floating gate tranistor to produce flash memory.

Describe reading and writing operation of a single bit (0 or 1) in a floating gate transistor.

Draw the layout of NAND Flash memory and explain reading operation.

Explain the terms: Digital Electronics and pulse techniques.

What is IC? Describe the role of Digital Electronics development of IC.

Mention names of some common logic families. Explain their main characteristics.

What is a totem pole in TTL circuits? Describe its benefits with necessary diagram.

Draw the circuit diagram of two-input NAND and NOR gate using CMOS transistors and explain their functionality.

Is there any importance of implementing Digital to Analog or Analog to Digital conversion? Justify your answer.

A six-bit DAC has a current output of 10mA for a digital input of 100110. What will be the output if input is 110010? Find the maximum output produced by the DAC.

Explain resolution and percentage resolution of a D/A converter.

Suppose A1 is an analog quantity converted into a digital quantity D1; Again D1 is converted a to analog a2, Are A2 equal to each other? Explain with strong argument and calculate necessary parameters to support your answer.

Draw the block diagram of successive approximation ADC and explain its functionality.