Gain Block Bias Networks

This is an Application Note goes over bias networks for Skyworks gain blocks. Skyworks gain blocks are Darlington feedback amplifiers which feature a constant gain-bandwidth product for use as an RF gain block. They use a circuit topology in which two transistors are combined to form a configuration known as a Darlington pair.

feature a constant gain-bandwidth product for use as an RF gain 
block. They use a circuit topology in which two transistors are 
combined to form a configuration known as a Darl