Gain boosting circuit of operational amplifier and electronic chip

The invention discloses an operational amplifier gain boosting circuit and an electronic chip, the operational amplifier gain boosting circuit comprises an operational amplifier, an input sampling capacitor, an integrating capacitor and a related level sampling capacitor connected to the output end of the operational amplifier, the input sampling capacitor is connected to the input end of the operational amplifier, and the integrating capacitor is connected to the output end of the operational amplifier. An input signal of the operational amplifier is sampled and kept, and in the working process of the operational amplifier, according to the gain error of the operational amplifier, compensation voltage which is the same as the error level corresponding to the gain error in size and opposite in direction is generated in the mode of adjusting an integrating capacitor or adjusting a related level sampling capacitor. The gain of the high-energy-efficiency operational amplifier can be remarkably improved, and the