The differential amplifier 60, wherein the main differential amplifier includes a second differential pair including {HEAD ~ a fifth transistor} and {TAIL ~ a sixth transistor}, the second differential pair, wherein the second differential pair is adapted to receive the shifted differential voltage signal to generate the output signal 
The differential amplifier 60 , wherein the main differential amplifier includes a second differential pair including { HEAD ~ a fifth transistor } and { TAIL ~ a sixth transistor } , the second differential pair , wherein the second differential pair is adapted to receive the shifted differential voltage signal to generate the output signal
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