Invention Grant
- Patent Title: Low bias current amplifier
- Patent Title (中): 低偏置电流放大器
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Application No.: US12473978Application Date: 2009-05-28
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Publication No.: US07948316B2Publication Date: 2011-05-24
- Inventor: Wei-Chung Wu , Lin Chen , Yuan Gu , Kae Ann Wong
- Applicant: Wei-Chung Wu , Lin Chen , Yuan Gu , Kae Ann Wong
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent John J. Patti; Wade J. Brady, III; Frederick J. Telecky, Jr.
- Main IPC: H03F3/26
- IPC: H03F3/26

Abstract:
An amplifier is provided that includes an output portion that sources and sinks current associated with an output load and an amplification portion that is biased by a relatively small bias current with respect to an output current of the amplifier. The amplification portion provides an amplified output signal to the output portion. The amplifier further comprises at least one impedance component coupled between the output portion and the amplification portion to alter at least one pole associated with the amplifier to mitigate instability of the amplifier related to the relatively small bias current.
Public/Granted literature
- US20090295484A1 Low Bias Current Amplifier Public/Granted day:2009-12-03
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