What's difference between pair differential LNA and single end LNA?

Hi,

1) How to design pair differential LNA ?
2) What's difference between pair differential LNA and single end LNA?

thanks

the differnetial LNA is a simply a differential amplifier

the main differnce , that u should match the differential input impedance with the impedance of the source

but differential LNA , will consume more power , more area , specially the spiral inductors will be alot , at least four ,

khouly