Invention Grant
- Patent Title: Multistage amplifier circuit with improved settling time
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Application No.: US15489187Application Date: 2017-04-17
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Publication No.: US09973161B2Publication Date: 2018-05-15
- Inventor: Vadim V. Ivanov , Vaibhav Kumar , Munaf H. Shaik
- 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 John R. Pessetto; Charles A. Brill; Frank D. Cimino
- Main IPC: H03F3/68
- IPC: H03F3/68 ; H03F3/45 ; H03F1/32 ; H03F3/21

Abstract:
Described examples include multistage amplifier circuits having first and second forward circuits, a comparator or sensor circuit coupled to sense a signal in the second forward circuit to identify nonlinear operation or slewing conditions in the multistage amplifier circuit, and one or more sample hold circuits operative according to a sensor circuit output signal to selectively maintain the amplitude of an amplifier input signal in the second forward circuit and/or in a feedback circuit in response to the sensor circuit output signal indicating nonlinear operation or slewing conditions in the multistage amplifier circuit. Certain examples further include a clamping circuit operative to selectively maintain a voltage at a terminal of a Miller compensation capacitance responsive to the comparator output signal indicating nonlinear operation or slewing conditions.
Public/Granted literature
- US20170222610A1 MULTISTAGE AMPLIFIER CIRCUIT WITH IMPROVED SETTLING TIME Public/Granted day:2017-08-03
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