Invention Grant
US09154170B2 TIA-to-ADC interface with low-noise and a wide-range of passive gain control
有权
TIA至ADC接口具有低噪声和广泛的被动增益控制
- Patent Title: TIA-to-ADC interface with low-noise and a wide-range of passive gain control
- Patent Title (中): TIA至ADC接口具有低噪声和广泛的被动增益控制
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Application No.: US14622750Application Date: 2015-02-13
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Publication No.: US09154170B2Publication Date: 2015-10-06
- Inventor: Mohyee Mikhemar , Amir Hadji-Abdolhamid , Hooman Darabi
- Applicant: BROADCOM CORPORATION
- Applicant Address: US CA Irvine
- Assignee: BROADCOM CORPORATION
- Current Assignee: BROADCOM CORPORATION
- Current Assignee Address: US CA Irvine
- Agency: McDermott Will & Emery LLP
- Main IPC: H04B1/06
- IPC: H04B1/06 ; H04B1/12 ; H04B1/18 ; H03F1/22 ; H03F3/195 ; H03F3/45 ; H03G3/00 ; H03F3/19 ; H03G3/18 ; H03H7/01 ; H03H7/06
Abstract:
A circuit for a low-noise interface between an amplifier and an analog-to-digital converter (ADC) may comprise a capacitor element having a capacitance of C coupled between a first and second output node of the amplifier. A resistor circuit coupled between the capacitor element and input nodes of the ADC. A desired value RL for a load resistance of the amplifier is provided by selecting suitable initial values for resistances of the resistor circuit. A desired bandwidth for the at least one amplifier is achieved by selecting a value of the capacitance C based on the desired value RL for the load resistance.
Public/Granted literature
- US20150162940A1 TIA-TO-ADC INTERFACE WITH LOW-NOISE AND A WIDE-RANGE OF PASSIVE GAIN CONTROL Public/Granted day:2015-06-11
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