Patent ID: 7365601

Claim:
An amplifier for amplifying a signal applied to a signal input comprising: (a) a first pair of transistors operably connected to the signal input, wherein currents flowing through each transistor in the first pair of transistors have a specific operating current ratio in relation to one another; (b) a second pair of transistors operably connected to the first pair of transistors, wherein currents flowing through each transistor in the second pair of transistors have the same operating current ratio in relation to one another; and (c) a signal output of the amplifier provided between the first pair of transistors and the second pair of transistors; wherein each transistor of the first pair of transistors is connected to a supply voltage via a resistor, the ratio of the resistance values of the two resistors connecting the transistors of the first pair of transistors to the supply voltage corresponding to the operating current ratio.