Patent ID: 9391572
Filing Date: 2016-07-12
CPC Classification: H03F

Claim Text:
1. A radio frequency (RF) driver amplifier comprising: an input node coupled to an RF signal; an output node; a first transistor pair, the first transistor pair comprising a first transistor in series with a second transistor, the first transistor comprising an n-type transistor having a first gate, first source and first drain, the second transistor comprising an n-type transistor having a second gate, second source and second drain and wherein the output node is coupled to the first source and the second drain, and wherein the input node is coupled to the second gate; a second transistor pair, the second transistor pair comprising a third transistor in series with a fourth transistor, the third transistor comprising an n-type transistor having a third gate, third source and third drain, the fourth transistor comprising an n-type transistor having a fourth gate, fourth source and fourth drain, and wherein the input node is coupled to the third gate and the fourth gate, and wherein the first gate is coupled to the third source; and wherein the first transistor, the second transistor, the third transistor, and the fourth transistor all comprise enhancement mode devices.