The application relates to the technical field of integrated circuits, and discloses an analog front-end circuit applied to a super-high-speed
SerDes receiver, a
transimpedance amplifier of which comprises a pair of input transistors, the gates of which are connected and connected with a T coil composed of a first
inductor and a second
inductor, one end of the first
inductor is connected with the gate and connected in parallel with a second
capacitor, the other end receives a front-stage input and is connected in parallel with one end of the second inductor and a first
capacitor, the drains of the input transistors are connected and connected with a T coil composed of a fifth inductor and a sixth inductor, one end of the sixth inductor is connected with the drain and connected in parallel with a third
capacitor, the other end outputs an amplified
signal and is connected in parallel with one end of the fifth inductor and a fourth capacitor, and the other end of the second inductor and the other end of the fifth inductor are directly connected in series with a first
resistor and a third inductor. The application optimizes zero-pole compensation high-frequency loss and optimizes
impedance matching to reduce reflection, and better guarantees the integrity of signals.