Sunday, 5 March 2017


digital buffer (or a voltage buffer) is an electronic circuit element that is used to isolate the input from the output, providing either no voltage or a voltage that is same as the input voltage. It draws very little current and will not disturb the original circuit. It is also called as unity gain buffer or a because it provides a gain of 1, which means it provides at most the same voltage as the input voltage, serving no amplification function.

Image result for buffer in vlsi

Usage of buffer in Physical Design

1. Setup Violation fixes
2. Hold Violation fixes
3. Max Trans Violation Fixes
4. xtalk reduction