Invention Grant
- Patent Title: Low-noise reference voltages distribution circuit
- Patent Title (中): 低噪声参考电压分配电路
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Application No.: US14379399Application Date: 2013-02-26
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Publication No.: US09292029B2Publication Date: 2016-03-22
- Inventor: Germano Nicollini , Andrea Barbieri
- Applicant: ST-Ericsson SA
- Applicant Address: CH Plan-les-Ouates
- Assignee: ST-ERICSSON SA
- Current Assignee: ST-ERICSSON SA
- Current Assignee Address: CH Plan-les-Ouates
- Agency: Patent Portfolio Builders PLLC
- Priority: EP12159979 20120316
- International Application: PCT/EP2013/053782 WO 20130226
- International Announcement: WO2013/135480 WO 20130919
- Main IPC: G05F1/10
- IPC: G05F1/10 ; G05F3/26 ; G05F1/56 ; H03H7/01

Abstract:
A low-noise reference voltages distribution circuit has a multi-output voltage-to-current converter configured to receive an input reference voltage and to provide a plurality of output reference currents to be converted into a plurality of local reference voltages by corresponding receiving circuits. The converter includes an input section, an output section and a low-pass filter. The input section generates a reference current based on the input reference voltage, and has a current mirror input transistor having a voltage controlled input terminal. The output section includes a plurality of current mirror output transistors outputting reference currents to the plurality of reference currents, respectively, and having a voltage controlled input terminal connected to a common input node. The low-pass filter has an input node connected to the voltage controlled input terminal of the current mirror input transistor and an output node connected to the common input node.
Public/Granted literature
- US20150035591A1 Low-Noise Reference Voltages Distribution Circuit Public/Granted day:2015-02-05
Information query
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