Why is BiCMOS better than CMOS?

BiCMOS combines the strengths of two different process technologies into a single chip: Bipolar transistors offer high speed and gain, which are critical for high-frequency analog sections, whereas CMOS technology excels for constructing simple, low-power logic gates.

What is difference between CMOS and BiCMOS?

BiCMOS combines both Bipolar and CMOS technologies in single IC. As we know CMOS has merits over bipolar in areas of low power dissipation, large noise margins and greater packing densities. Bipolar has merits over CMOS in areas of faster switching speed and large current cababilities.

What is the difference between CMOS and bipolar technologies?

However, the CMOS process features low withstand voltage, making them suitable for low supply voltage applications. Although bipolar opamps provide higher input bias current and current consumption, they offer higher withstand voltage, low noise, low offset, and wide bandwidth.

What are the advantages of BiCMOS Mcq?

Explanation: BiCMOS provides higher gain, better noise and high frequency characteristics than MOS transistors.

What is BiCMOS technology?

Bipolar CMOS (BiCMOS) is a semiconductor technology that integrates two semiconductor technologies, those of the bipolar junction transistor and the CMOS (complementary metal-oxide-semiconductor) gate, in a single integrated circuit device.

What are the disadvantages of using BiCMOS technology?

The inherent robustness of BiCMOS with respect to temperature and process variations also reduces the variability of final electrical parameters resulting in a higher percentage of prime units, an important economic consideration. The main drawbacks to BiCMOS are higher costs and longer fabrication cycle time.

What is BiCMOS fabrication?

The BiCMOS fabrication combines the process of fabrication of BJT and CMOS, but merely variation is a realization of the base. The following steps show the BiCMOS fabrication process.

What is the advantage of MOS device?

Detailed Solution. The main advantage of the MOS transistor is that it doesn’t require input current to control the load. These transistors are unipolar devices. So, there is no leakage current ideally.

What is the advantage of CMOS over BJT?

CMOS gates dissipate power only while switching and NOT while they are “open”(transistor off) or “close”(transistor on). Hence, reduced power consumption. The dimensions of MOS devices can be scaled down more easily and have lesser fabrication cost compared to BJT.

What is the main advantage of current mode CMOS circuits over the voltage mode circuits?

Voltage-Mode versus Current-Mode CM circuits offer a better alternative to VMC in high-frequency applications. Following are the advantages of the CM approach: (i) Improved AC performance with better linearity. (ii) Wide and nearly constant bandwidth independent of closed loop gain.

Where is BiCMOS used?

It can be used for sample and hold applications as it provides high impedance inputs. This is also used in applications such as adders, mixers, ADC and DAC. To conquer the limitations of bipolar and CMOS operational amplifiers the BiCMOS processes are used in designing the operational amplifiers.