Question:* True or False? A diode has typically low resistance in one direction and very high resistance in the other direction?
Answer: • True
Question:* Which program is useful when trying to solve complex integrated circuits?
Answer: • SPICE
Question:* What can be used as a control system to synchronise the input and output frequencies of a system?
Answer: • phase locked loop
Question:* True or False? ULSI stands for Ultra Large Scale Integration
Answer: • True
Question:* True or False? A NAND gate would typically be found in a digital circuit.
Answer: • True
Question:* Integrated circuits can be divided into which two categories?
Answer: • Analog and digital
Question:* True or False? An integrated circuit can consist of thousands of transistors?
Answer: • True
Question:* A register is a type of integrated circuit that deals with memory.
Answer: • True
Question:* True or False? A mircoprocessor in a computer is often composed of billions of transistors.
Answer: • True
Question:* Integrated circuits can be found in which of the following
Answer: • (All of these)
Question:* What material is an integrated circuit typically made out of?
Answer: • Semiconductor
Question:* Which of the following is the correct formula for the relationship between voltage, current and resistance?
Answer: • V=IR
Question:* Which of the following could be an element in an integrated circuit?
Answer: • (All of these)
Question:* True or False? A truth table can be helpful when analzying a digital circuit.
Answer: • True
Question:* True or False? An integrated circuit can be used as an amplifier
Answer: • True
Question:* What element is most likely used as a semiconductor?
Answer: • Silicon
Question:* True or False? A digital circuit only can accept voltages at a certain level.
Answer: • True
Question:* True or False? Integrated Circuits typically only have one layer.
Answer: • False
Question:* Bipolar transistors use what item(s) to conduct
Answer: • holes and electrons
Question:* What does FET stand for?
Answer: • Field Effect Transistor
Question:* Which of the following is a state for logic gates?
Answer: • 0
Question:* Suppose you have a simple circuit with V=4 volts and R= 4 Ohm. What is the current that runs through that circuit?
Answer: • 1 ampere
Question:* True or False: TTL integrated circuits offer more speed than similar RTL circuits.
Answer: • True
Question:* P-N junction semiconductor creates a
Answer: • diode
Question:* Logic gates usually have how many states?
Answer: • 2
Question:* Another name for an integrated circuit is
Answer: • microchip
Question:* True or False: An Instrumentation Amplifier has input buffer amplifiers in its construction.
Answer: • True
Question:* Which of these is a commonly used simulator for predicting the behaviour of an IC?
Answer: • SPICE
Question:* A thin slice of silicon crystal used in IC fabrication is called a
Answer: • wafer
Question:* Which of these is a type of DAC?
Answer: • R-2R
Question:* Which of these uses a DAC?
Answer: • speaker system
Question:* True or False: A DRAM uses one capacitor and one transistor per data bit.
Answer: • True
Question:* With reference to CMOS and other IC technologies, what is "dynamic power consumption"?
Answer: • power consumed while switching logic states
Question:* What is an IC package with a rectangular housing and two parallel rows of connecting pins called?
Answer: • dual in-line package
Question:* True or False? Digital circuits typically can have an infinite amount of states.
Answer: • False
Question:* If you were to design an audio amplifier which type of integrated circuit would you use?
Answer: • Analog circuit
Question:* Another name for a base wafer is
Answer: • the substrate material
Question:* Which of these is a hardware description language used to design an application specific IC?
Answer: • Verilog
Question:* What is another name for a bistable multivibrator?
Answer: • Flip-flop
Question:* According to the Nyquist sampling theorem, what should be the minimum sampling rate of an ADC?
Answer: • twice the highest frequency of the analog signal
Question:* In which type of digital logic does the output depend on just the present input (and not on past inputs)?
Answer: • Combinational Logic
Question:* What is the round-off error between the analog input and the digitized output of an ADC called?
Answer: • quantization error
Question:* What does CMOS stand for?
Answer: • Complimentary Metal-Oxide Semiconductor
Question:* What is a term for the maximum rate of change of output voltage per unit time?
Answer: • slew rate
Question:* True or False: All logic families use the same voltage levels to represent logic 0 and logic 1.
Answer: • False
Question:* What kind of IC can be customised by a user after it has been manufactured?
Answer: • FPGA
Question:* What does ASIC stand for?
Answer: • Application Specific Integrated Circuits
Question:* Which of these is NOT a procedure used for IC construction?
Answer: • Electrolysis
Question:* A circuit that can convert a DC signal to an AC signal with a frequency dependent on the input voltage is called a:
Answer: • voltage controlled oscillator
Question:* Logical Effort is a means to:
Answer: • calculate delay in a CMOS circuit
Question:* What is an example of volatile memory?
Answer: • DRAM
Question:* What can be used to transfer voltage from a circuit with high output impedance to one with low input impedance?
Answer: • voltage buffer amplifier
Question:* What is correct symbolic name of ground pin on IC?
Answer: • Vss
Question:* A mixed-signal chip is often found in
Answer: • a cell phone
Question:* What is a method used to separate individual electronic components on a silicon substrate?
Answer: • p-n junction isolation
Question:* What is a characteristic of asynchronous sequential logic?
Answer: • it does not make use of a clock signal
Question:* Ideally, in an LC circuit what happens to the total energy?
Answer: • It is conserved
Question:* True or False? A temperature sensor would likely used a digital circuit.
Answer: • False
Question:* One technology which uses both BJTs and CMOS is called
Answer: • BiCMOS
Question:* What kind of feedback is used in an op-amp to make a Schmitt trigger?
Answer: • positive feedback
Question:* According to Moore's Law, the number of transistors on an IC doubles every
Answer: • two years
Question:* Parasitics become a problem as a circuit becomes:
Answer: • (All of these)
Question:* What effect arises when analog frequencies are incorrectly detected due to undersampling?
Answer: • aliasing
Question:* Which type of ADC uses a ladder of comparators, each with a different reference voltage?
Answer: • Flash ADC
Question:* A "totem pole" or "push-pull" output stage employed in a TTL circuit can solve the problem of
Answer: • high output resistance
Question:* What is a common source of wasted power in low power circuit design?
Answer: • Floating inputs
Question:* True or False? Monolithic circuits have been around the longest period of time.
Answer: • False
Question:* With reference to ADCs, what is dither?
Answer: • deliberately introduced white noise to ADC input
Question:* True or false? Placing a postive voltage at the gate of a p-type enchanced mode FET will turn on the switch.
Answer: • False
Question:* An uncharged capacitor acts like which of the following?
Answer: • A short circuit
Question:* Which of these can form the inputs of a TTL NAND gate?
Answer: • Emitters of a multiple emitter transistor
Question:* In an MMIC what is the frequency range?
Answer: • GHz
Question:* In synchronous circuits, the maximum possible clock rate is determined by the logic path with the longest propagation delay, called the
Answer: • critical path
Question:* True or False: Integrated Injection Logic is generally made using MOSFETs.
Answer: • False
Question:* Which of these is a MOSFET amplifier topology?
Answer: • common source
Question:* What sort of signal does a relaxation oscillator produce?
Answer: • non-sinusoidal
Question:* Which of these technologies consumes most power when at rest?
Answer: • ECL
Question:* Why are CMOS good for saving power?
Answer: • Only one circuit is on
Question:* True or False? Silicon is typically used in mircowave monolithic ICs.
Answer: • False
Question:* What is an advantage of using active filters instead of passive in a monolithic IC?
Answer: • active devices are inexpensive
Question:* Which of these is a type of ADC?
Answer: • pipeline
Question:* According to Moore's Law the amount of transistors able to fit on one chip doubles every how often?
Answer: • 1 year
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