Pulse photoelectric detection pre-amplification circuit digital-analog hybrid integrated circuit chip and equipment

The invention provides a pulse photoelectric detection pre-amplification circuit digital-analog hybrid integrated circuit chip and equipment, and relates to the technical field of photoelectric weak signal pre-amplification applied to laser space positioning, and the chip comprises a variable gain pre-amplification unit, a polarity control unit, a final amplification unit and a digital circuit unit. The variable gain pre-stage amplification unit is composed of an array amplifier unit and a two-stage variable attenuation circuit unit, and the polarity control unit adopts a current mirror principle to realize polarity control of an output voltage signal; the final-stage amplification unit realizes secondary amplification and can control output saturation amplitude and analog bandwidth, and the digital circuit unit can realize on-line programming, debugging and parameter solidification, such as control of gain, attenuation multiple, output polarity, analog bandwidth, pulse width, saturation amplitude and the lik