Circuit configuration with selectively operating amplifiers
AssigneeInfineon Technologies AG
InventorsLothar Musiol, Henning Hohmann
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Abstract
A circuit configuration is configured such that selectively a first amplifier or a second amplifier amplifies signals. The second amplifier is operated depending on the conditions established at the input terminal of the first amplifier. A switching element has a controlled path connected to an input terminal of the second amplifier. The switching state of the switching element can be controlled by the input terminal of the first amplifier. As a result, it is possible to effect the changeover between the amplifiers with minimal outlay and without disturbing the amplifiers.
Claims12
A circuit configuration, comprising:
- a first amplifier having a first controlled path connected to ground and a first terminal for receiving a signal to be amplified;
- a second amplifier having a second controlled path connected to ground and a second terminal for receiving a signal to be amplified;
- and
- a switching element having a switched path with a first side connected to ground and with a second side connected to one of said first and second terminals, said switched path of said switching element being configured to be controllable by a signal present at another one of said first and second terminals.
Dependencies are inferred from the claim text.