Analog front-end architecture for capacitive pressure sensor

An analog front-end architecture for a capacitive pressure sensor, comprising:

• a low-noise amplifier unit configured for low-noise amplification of sensor signals from the capacitive pressure sensor, the low-noise amplifier unit including a first integrator unit and a second integrator unit configured to integrate charges injected into input terminals of the low-noise amplifier unit and to output integrated charges to output terminals of the low-noise amplifier unit, a feedback unit, and a startup unit, wherein the feedback unit is configured to reinject integrated charges from the second integrator unit into the input terminals of the low-noise amplifier unit, and wherein the startup unit is switchable between a first switching state and a second switching state and is configured, in the first switching state, to route the charges injected into the input terminals past the first integrator unit into the second integrator unit and from the second integrator unit into the feedback unit, and, in the second switching state, to route charges injected into the input terminals directly into the first integrator unit.