Verstärkerschaltung und Verfahren

The amplifier circuit (100) has a current setting circuitry (101) and a differential amplifier circuitry (102) with differential amplifier inputs (103,104). The current setting circuitry adjusts the total current by input differential stage (105) based on difference between potentials at differential amplifier inputs so that total current in state where potentials are different is larger than total current in state where potentials are equal.