发明名称 |
SELF BIASED DUAL MODE DIFFERENTIAL CMOS TIA FOR 400G FIBER OPTIC LINKS |
摘要 |
A transimpedance amplifier (TIA) device. The device includes a photodiode coupled to a differential TIA with a first and second TIA, which is followed by a Level Shifting/Differential Amplifier (LS/DA). The photodiode is coupled between a first and a second input terminal of the first and second TIAs, respectively. The LS/DA can be coupled to a first and second output terminal of the first and second TIAs, respectively. The TIA device includes a semiconductor substrate comprising a plurality of CMOS cells, which can be configured using 28 nm process technology to the first and second TIAs. Each of the CMOS cells can include a deep n-type well region. The second TIA can be configured using a plurality CMOS cells such that the second input terminal is operable at any positive voltage level with respect to an applied voltage to a deep n-well for each of the plurality of second CMOS cells. |
申请公布号 |
US2016118947(A1) |
申请公布日期 |
2016.04.28 |
申请号 |
US201614987673 |
申请日期 |
2016.01.04 |
申请人 |
INPHI CORPORATION |
发明人 |
Shringarpure Rahul;Broekaert Tom Peter Edward;Mahajan Gaurav |
分类号 |
H03F3/08;H03F1/02 |
主分类号 |
H03F3/08 |
代理机构 |
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代理人 |
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主权项 |
1. A communication system comprising:
a transimpedance amplifier (TIA) device comprising: a semiconductor substrate comprising a plurality of CMOS cells, each of the CMOS cells comprising a deep n-type well region; a first TIA comprising a first input terminal and a first output terminal, the first TIA configured using a plurality of first CMOS cells; a second TIA comprising a second input terminal and a second output terminal, the second TIA configured using a plurality of second CMOS cells such that the second input terminal is operable at any positive voltage level with respect to an applied voltage to a deep n-well for each of the plurality of second CMOS cells; a photodiode coupled between the first input terminal and the second input terminal; and a Level Shifting/Differential Amplifier (LS/DA) coupled to the first output terminal and the second output terminal; and an optical link coupled to the TIA. |
地址 |
Santa Clara CA US |