# How do I get gain bandwidth product?

## How do I get gain bandwidth product?

For example, from the graph above the gain of the amplifier at 100kHz is given as 20dB or 10, then the gain bandwidth product is calculated as: GBP = A x BW = 10 x 100,000Hz = 1,000,000.

### Why gain bandwidth product is constant after adding negative feedback?

Reducing the closed loop gain (>=1), increases the feedback factor and increases the bandwidth. Thus the GBP remains almost constant in any negative feedback system.

#### What is relationship between gain and bandwidth?

Gain and bandwidth in an amplifier are inversely proportional to each other and their relationship is summarized as the unity-gain bandwidth. Unity-gain bandwidth defines the frequency at which the gain of an amplifier is equal to 1.

What is the importance of a gain bandwidth product?

The gain bandwidth product is one of the important parameters of the op-amp and it is often used by the designers and electronic hobbyist for selecting the op-amp for specific application. For the ideal op-amp, the gain is infinite and it has infinite bandwidth. But the actual op-amp has finite bandwidth and finite gain.

What is the definition of gain bandwidth product?

The gain-bandwidth product (designated as GBWP, GBW, GBP, or GB) for an amplifier is the product of the amplifier’s bandwidth and the gain at which the bandwidth is measured .

## What are the applications of op amp?

Op amps are used in a wide variety of applications in electronics. Some of the more common applications are: as a voltage follower, selective inversion circuit, a current-to-voltage converter, active rectifier, integrator, a whole wide variety of filters, and a voltage comparator.

### What is unity-gain bandwidth?

The unity-gain bandwidth covers the full-power bandwidth, the half power point, and the gain-bandwidth product . It ends at the point where no more gain is produced; this point is called the transition frequency.