公开(公告)号：US20130278338A1

公开(公告)日：2013-10-24

申请号：US13864739

申请日：2013-04-17

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Enrico Stefano TEMPORITI MILANI ,  Wissam Yussef Sabri EYSSA ,  Gabriele MINOIA

IPC: H03F3/45

CPC classification number: H03F3/45076 ,  H03F3/087 ,  H04B10/693

Abstract: The differential trans-impedance amplifier uses trans-resistance(s) connected between the input nodes of a first differential amplifier, to implement a trans-impedance differential amplifier in a differential fashion and has two identical resistances, each connected between the photodiode and a respective DC voltage rail of a common bias network of the photodiode adapted to reverse bias the photodiode. The biasing resistances may be much larger than the trans-resistance(s) to prevent drawing any significant signal current from the photodiode. The amplifier may retain the advantages of a classical differential topology while effectively overcoming drawbacks that arise in high data rate applications.

Abstract translation: 差分跨阻放大器使用连接在第一差分放大器的输入节点之间的反电阻，以差分方式实现跨阻抗差分放大器，并具有两个相同的电阻，每个电阻连接在光电二极管和相应的 适用于反射偏置光电二极管的光电二极管的公共偏置网络的直流电压轨。 偏置电阻可能比跨阻抗大得多，以防止从光电二极管引起任何有效的信号电流。 放大器可以保留经典差分拓扑的优点，同时有效克服在高数据速率应用中出现的缺点。

公开(公告)号：US20130293301A1

公开(公告)日：2013-11-07

申请号：US13868647

申请日：2013-04-23

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Wissam Yussef Sabri EYSSA ,  Enrico Stefano TEMPORITI MILANI ,  Daniele BALDI

IPC: H03F3/45

CPC classification number: H03F3/45071 ,  H03F3/08 ,  H03F3/087 ,  H03F3/45183

Abstract: A differential or pseudo-differential TIA includes an auxiliary differential amplifier input transistor pair cross-coupled to the output nodes to cancel undesired output signal components. The advantages of a classical differential topology are retained while performance at a high data rate is significantly improved.

Abstract translation: 差分或伪差分TIA包括交叉耦合到输出节点的辅助差分放大器输入晶体管对，以消除不期望的输出信号分量。 保留经典差分拓扑的优点，同时在高数据速率下的性能得到显着改善。