公开(公告)号：US08907729B2

公开(公告)日：2014-12-09

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: H03F3/08

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：US09229250B2

公开(公告)日：2016-01-05

申请号：US14043547

申请日：2013-10-01

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Gabriele Minoia ,  Salvatore Galeone ,  Enrico Stefano Temporiti Milani

IPC: H03K19/0175 ,  G02F1/01 ,  H03K19/0185 ,  G02F1/225

CPC classification number: G02F1/0121 ,  G02F1/225 ,  G02F2201/126 ,  H03K19/018521 ,  H03K19/018528

Abstract: A relatively high-speed, high-efficiency CMOS two branch driver core that may operate under relatively low supply voltage may include thin oxide CMOS transistors configured to generate rail-to-rail output swings larger than twice a supply voltage and without exceeding safe operating area limits. Each of the two branches may include two stacked CMOS inverter pairs configured to drive a respective load capacitance coupled between respective CMOS inverter outputs, in phase opposition to the other branch. A pre-driver circuit input with a differential modulating signal may output two synchronous differential voltage drive signals of a swing of half of the supply voltage and DC-shifted by half of the supply voltage with respect to each other and that may be applied to the respective CMOS inverter inputs of the two branches.

Abstract translation: 可以在相对低的电源电压下工作的相对高速，高效率的CMOS两分支驱动器核心可以包括薄氧化物CMOS晶体管，其被配置为产生大于电源电压两倍的轨至轨输出摆幅，并且不超过安全操作区域 限制 两个分支中的每一个可以包括两个堆叠的CMOS反相器对，其被配置为驱动耦合在各个CMOS反相器输出之间的相应负载电容，与另一个分支相反。 具有差分调制信号的预驱动器电路输入可以输出两个同步差分电压驱动信号，该两个同步差分电压驱动信号是电源电压的一半的摆幅，并相对于彼此直流偏移电源电压的一半，并且可以施加到 相应的CMOS反相器输入的两个分支。