Method for setting an amplifier, and corresponding amplifier circuit
AssigneeInfineon Technologies AG
InventorsMartin Clara, Antonio Di Giandomenico, Klaus Kolhaupt, Andreas Weiebauer
Life of this patent
Estimating the term…
Abstract
An amplifier and method of setting the amplifier is presented. The amplifier is set by setting a mean value between voltage values at first and second outputs of the amplifier. The mean value is pulled towards a certain voltage potential. A circuit node is coupled to the first and to the second output. The circuit node is connected, via at least one resistor and a respective switch, to the certain voltage potential assigned to the respective resistor.
Claims20
A method for setting an amplifier having first and second outputs of first and second voltage values, respectively, the method comprising:
- setting a mean value between the first and second voltage values by pulling a circuit node coupled both to the first and second outputs towards a certain voltage potential;
- setting the amplifier in dependence on the mean value;
- and
- picking off a differential output signal of the amplifier.
An amplifier circuit comprising:
- an amplifier having a first output and a second output, the amplifier circuit having a differential output signal;
- first circuit means for setting the amplifier circuit in dependence on a mean value between a first voltage value at the first output and a second voltage value at the second output;
- and
- second circuit means for setting the mean value between the first voltage value and the second voltage value, the second circuit means designed such that the mean value is set by pulling a circuit node, which is connected both to the first output and to the second output, towards a certain voltage potential.
An amplifier circuit comprising:
- a first amplifier having a first output and a second output, the amplifier circuit having a differential output signal;
- a first circuit connected between the first and second outputs and that sets the amplifier circuit in dependence on a mean value between a first voltage value at the first output and a second voltage value at the second output;
- and
- a plurality of second circuits connected between a node of the first circuit and different voltages, the node connected both to the first and second outputs, the node having the mean value.
Dependencies are inferred from the claim text.