Invention Grant
- Patent Title: Dynamic differential amplifier with enhanced gain
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Application No.: US16211049Application Date: 2018-12-05
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Publication No.: US10778155B2Publication Date: 2020-09-15
- Inventor: Randall M. White
- Applicant: BAE Systems Information and Electronic Systems Integration Inc.
- Applicant Address: US NH Nashua
- Assignee: BAE Systems Information and Electronic Systems Integration Inc.
- Current Assignee: BAE Systems Information and Electronic Systems Integration Inc.
- Current Assignee Address: US NH Nashua
- Agency: Finch & Maloney PLLC
- Main IPC: H03F3/45
- IPC: H03F3/45 ; H03F1/32 ; H03F1/02

Abstract:
A dynamic differential amplifier includes: gain transistors to drive with differential input voltage levels; sample capacitors having first terminals to ramp from an initial voltage level to differential amplified voltage levels of the input voltage levels in response to the driven gain transistors; and adjustment circuits to adjust the amplified voltage levels in the direction of the initial voltage level by an offset voltage level. In some cases, second terminals of the sample capacitors are a common-mode node to maintain a common-mode voltage level midway between the ramping voltage levels of the first terminals. In some cases, the dynamic differential amplifier further includes a comparison circuit to compare the maintained common-mode voltage level to a threshold voltage level, wherein the first terminals of the sample capacitors stop ramping and the adjustment circuits adjust the amplified voltage levels in response to the compared common-mode voltage level reaching the threshold voltage level.
Public/Granted literature
- US20200186102A1 DYNAMIC DIFFERENTIAL AMPLIFIER WITH ENHANCED GAIN Public/Granted day:2020-06-11
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