AMPLIFIER WITH DYNAMIC BIAS

摘要

Techniques are provided for dynamically biasing an amplifier to extend the amplifier's operating range while conserving power. In an embodiment, a detector (310) is provided to measure the amplifier output to determine an operating region of the amplifier. The output of the detector (310) may be input to a bias adjuster (320), which outputs a dynamic voltage level supplied to at least one bias transistor (M81) in the amplifier. Multiple embodiments of the detector and bias adjuster are disclosed.