Analog sensor with digital compensation function

The invention relates to an analog sensor with a digital compensation function. The analog sensor comprises an elastic body which deforms according to pressure sensed by the analog sensor; a strain gauge which is connected to the elastic body and generates change of resistance according to the deformation; a strain gauge bridge circuit which is connected to the strain gauge and transmits the change of resistance so as to output a first analog signal; an analog-to-digital conversion module which is connected to the output end of the strain gauge bridge circuit of the analog sensor, receives the first analog signal from the strain gauge bridge circuit and converts the first analog signal into a first digital signal, wherein the first analog signal is an analog signal indicting weight; and an analog output port which outputs a second analog signal. The analog sensor further comprises a signal processing and output circuit which is connected between the output end of the analog-to-digital conversion module and the analog output port, compensates the first digital signal and converts the first digital signal into the second analog signal. High-accuracy compensation can be realized, and interfaces of the analog weighing sensor can be kept simple.