Patent ID: 11863139
Assignee: SK HYNIX INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An amplifier comprising:
an amplification circuit configured to change voltage levels of a first amplification node and a second amplification node based on a first input signal and a second input signal;
an equalization circuit configured to couple a first equalization node to the second amplification node based on the voltage level of the first amplification node and configured to couple a second equalization node to the first amplification node based on the voltage level of the second amplification node;
a first gain adjusting circuit configured to couple the first and second equalization nodes based on a first gain control signal; and
a second gain adjusting circuit configured to change amounts of current flowing through the first and second equalization nodes based on a second gain control signal,
wherein the first gain adjusting circuit comprises a first resistor having one end coupled to the first equalization node, a second resistor having one end coupled to the second equalization node, and a source transistor configured to receive the first gain control signal to couple the other ends of the first and second resistors.