Multimode reconfigurable amplifier and analog filter including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsSo-Young Kang, Thomas Byung-Hak Cho, Hee-Seon Shin, Su-Seob Ahn, Jong-Mi Lee, Min-Gyu Jo
Life of this patent
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Abstract
Provided is a reconfigurable amplifier. The reconfigurable amplifier includes a gain circuit including a gain path configured to amplify an input signal, and a feed forward circuit including a feed forward path configured to receive the input signal and perform feed forward compensation on the input signal, and a first control circuit configured to perform the feed forward compensation in a first mode by activating the feed forward path, and deactivate the feed forward path in a second mode different from the first mode.
Claims16
A reconfigurable amplifier, comprising:
- a gain circuit comprising a gain path configured to amplify an input signal;
- and
- a feed forward circuit comprising a feed forward path configured to receive the input signal and perform feed forward compensation on the input signal,
- and a first control circuit configured to perform the feed forward compensation in a first mode by activating the feed forward path, and deactivate the feed forward path in a second mode different from the first mode, wherein the first control circuit comprises a plurality of first transistors gated by the feed forward path and a plurality of second transistors gated by a common feedback loop.
A reconfigurable amplifier, comprising:
- a gain circuit comprising a first amplifier configured to amplify an input signal and a second amplifier configured to amplify an output of the first amplifier;
- a feed forward circuit connected to an input terminal of the first amplifier and an output terminal of the second amplifier and configured to perform feed forward compensation;
- a common feedback amplifier;
- and
- a control circuit configured to control the gain circuit to have a first capacitance configuration in a first mode and control the gain circuit to have a second capacitance configuration, which is different from the first capacitance configuration, in a second mode different from the first mode, wherein the capacitance configurations indicate which element of the second control circuit connects to a capacitance.
A reconfigurable amplifier, comprising:
- a gain circuit comprising a first amplifier configured to amplify an input signal and a second amplifier configured to amplify an output of the first amplifier;
- and
- a feed forward circuit and a control circuit connected to an input terminal of the first amplifier and an output terminal of the second amplifier and configured to perform feed forward compensation,
- wherein the control circuit is further configured to perform feed forward compensation in a first mode using m first transistors and perform feed forward compensation in a second mode different from the first mode using n first transistors, wherein m is an integer greater than or equal to one, and n is an integer greater than or equal to zero and less than m.
Dependencies are inferred from the claim text.