Invention Grant
- Patent Title: Multi-amplifier circuit
- Patent Title (中): 多功放电路
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Application No.: US12286772Application Date: 2008-10-02
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Publication No.: US07688141B1Publication Date: 2010-03-30
- Inventor: Farbod Aram
- Applicant: Farbod Aram
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: H03F3/45
- IPC: H03F3/45

Abstract:
A transimpedance amplifier (TIA) includes N cascaded pairs of transconductance amplifiers, where N is an integer greater than 1. Each one of the N cascaded pairs includes a first transconductance amplifier having an input and an output, and a second transconductance amplifier having an input that communicates with the output of the first transconductance amplifier and an output. Each one of the N cascaded pairs includes a first resistance having first and second ends that communicate with the input and the output of the second transconductance amplifier, respectively. The TIA further includes a second resistance having a first end that communicates with the input of the first transconductance amplifier of a first one of the N cascaded pairs, and a second end that communicates with the output of the second transconductance amplifier of a last one of the N cascaded pairs.
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