Invention Grant
- Patent Title: Method and circuitry for multi-stage amplification
- Patent Title (中): 多级放大的方法和电路
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Application No.: US14066980Application Date: 2013-10-30
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Publication No.: US09143100B2Publication Date: 2015-09-22
- Inventor: Swaminathan Sankaran , Bradley Allen Kramer , Hassan Ali , Nirmal C. Warke
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Michael A. Davis, Jr.; Frank D. Cimino
- Main IPC: H03F3/45
- IPC: H03F3/45 ; H03F1/00

Abstract:
In an amplifier, a first stage receives a differential input voltage, which is formed by first and second input voltages, and outputs a first differential current in response thereto on first and second lines having respective first and second line voltages. A second stage receives the first and second line voltages and outputs a second differential current in response thereto on third and fourth lines having respective third and fourth line voltages. A transformer includes first and second coils. A first terminal of the first coil is coupled through a first resistor to the first line. A second terminal of the first coil is coupled through a second resistor to the second line. A first terminal of the second coil is coupled through a third resistor to the third line. A second terminal of the second coil is coupled through a fourth resistor to the fourth line.
Public/Granted literature
- US20150091642A1 METHOD AND CIRCUITRY FOR MULTI-STAGE AMPLIFICATION Public/Granted day:2015-04-02
Information query