What is the output of CMOS?

What is CMOS output? CMOS output (complementary output) normally consists of a Pch MOS at the high output stage and an Nch MOS at the low output stage. An alternative configuration is NMOS output, comprised of Nch MOSFETs at both high and low sides.

What is high impedance state in CMOS?

Hi-Z (or High-Z or high impedance) refers to an output signal state in which the signal is not being driven. The signal is left open, so that another output pin (e.g. elsewhere on a bus) can drive the signal or the signal level can be determined by a passive device (typically, a pull-up resistor).

What is CMOS input impedance?

The input impedance, in either state, of CMOS gates is typically 1012 Ω. The input capacitance is 5 pF. The output impedance depends on the particular device, and is on the order of 1 kΩ, for either state.

What is the input resistance of CMOS?

The input resistance of the CMOS inverter is extremely high, as the gate of an MOS transistor is a virtually perfect insulator and draws no dc input current. Since the input node of the inverter only connects to transistor gates, the steady-state input current is nearly zero.

Is high output impedance good?

A larger output impedance means that the output can be a good current source. A smaller output impedance means that the output can be a good voltage source. A larger input impedance means that the input can sense a voltage without attenuation.

Which is the basic CMOS gate out of the following?

About the Basic CMOS Logic Gates Two primary connections are the two-input NAND gate and the two-input NOR gate. A NAND gate places two n-channel transistors in series to ground and two p-channel transistors in parallel connected to +V. Only when both inputs are logic 1, the output goes to logic 0.

What is low impedance and high-impedance?

High impedance circuits are low current and potentially high voltage, whereas low impedance circuits are the opposite (low voltage and potentially high current). In audio systems, a high-impedance input may be required for use with devices such as crystal microphones or other devices with high internal impedance.