Integrated-Circuits
Question 1 |
Logic family popular for low power dissipation
CMOS | |
ECL | |
TTL | |
DTL |
Question 1 Explanation:
CMOS uses almost no power in the static state, i.e. when inputs are not changing. They have low energy requirements for logic transition and hence less power and heat dissipation.
Question 2 |
The advantage of MOS devices over bipolar devices is that
it allows higher bit densities and also cost effective | |
it is easy to fabricate | |
it is higher-impedance and operational speed | |
all of these |
Question 2 Explanation:
Explanation:
→ The Mosfet has a much better response in high frequency than the BJT.
→ Normally the switching speed would be in the us range for the BJT while the Mosfet is in the ns range.
→ The advantage of the Mosfet is also in the circuitry needed to operate it. The BJT is a current driven device while the Mosfet is voltage driven. The circuitry for creating voltage pulses is much simpler than the ones for current pulses and the first ones require less power
→ The Mosfet has a much better response in high frequency than the BJT.
→ Normally the switching speed would be in the us range for the BJT while the Mosfet is in the ns range.
→ The advantage of the Mosfet is also in the circuitry needed to operate it. The BJT is a current driven device while the Mosfet is voltage driven. The circuitry for creating voltage pulses is much simpler than the ones for current pulses and the first ones require less power
There are 2 questions to complete.