A variable-gain differentiator with staged amplifiers and feedback reduces additive noise sensitivity while improving signal derivative estimation.
A voltage-controlled amplifier tunes differentiator gain to curb additive noise while preserving accurate signal differentiation across frequencies.
A capacitance-buffered reset circuit offsets transistor switching noise and leakage current to stabilize address event detection in solid-state image sensors.
Dual-mode feedback cancels MEMS sensor offset quickly at startup, then preserves stable normal operation and accurate readings.