Abstract: A circuit architecture (200) for implementation of compensation based on Miller capacitors in multi-stage chopped amplifiers includes insertion of an additional chopper (206) in the compensation feedback (118, 120) pathway. Such compensation is more area efficient than parallel compensation and allows higher bandwidth in multistage amplifiers. The insertion of a chopper in the Miller capacitance feedback loop provides a means to selectively adjust the phase of the feedback by 180 degrees.

Abstract: A circuit architecture (200) for implementation of compensation based on Miller capacitors in multi-stage chopped amplifiers includes insertion of an additional chopper (206) in the compensation feedback (118, 120) pathway. Such compensation is more area efficient than parallel compensation and allows higher bandwidth in multistage amplifiers. The insertion of a chopper in the Miller capacitance feedback loop provides a means to selectively adjust the phase of the feedback by 180 degrees.

Abstract: A pixel signal amplification circuit (200) receives a signal from a pixel element. A first semiconductor switch (225a) is connected to the pixel element and transfers a reset value of the pixel signal to a first storage capacitor (C1). A second semiconductor switch (235a) is also connected to the pixel element and transfers a sampled pixel signal to a second storage capacitor (C3). A differential voltage amplifier (OP1) generates an amplified signal of the difference between the values stored on the first and second storage capacitors (C1 and C3).