Techy stuff

What are buffers n y do v use it !! .....

1. Buffers are memory elements with typical chracteristics
   

here v go with usage now
We use buffers for the following reasons:
1- Isolation between the two stages, so prevent the loading effect one stage on the other.
2- Provide high output current since the buffer output impedance is very small.

buffers has the following properties

high input impedence so it can used in isolation between stages

low output impedence so it has no effect on its following stages

voltage gain approximately (1)

high current gain

and it mainly used between antenna and local oscillators
and between antennas and power amplifiers