Integrated circuit with self-proofreading function and measuring device using the same

A measuring apparatus with a self-proofreading function, comprising a sensor;

• and a measuring circuit, the measuring circuit comprising:
• a micro control unit (MCU) for receiving digital signals;
• an analog digital converter (ADC) connected to the MCU, the ADC being used for receiving measuring signals from the sensor and converting the measuring signals to digital signals;
• a one-time programmable (OTP) memory directly connected with the MCU;
• an electrical charge pump having an output port and an enable port connected to the MCU;
• and
• a switching circuit having a control port connected to the MCU, a first input port connected to the output port of the electrical charge pump, a second input port connected to a power source of the MCU, and an output port connected to the OTP memory to provide an operating voltage and a recording voltage for the OTP memory
• wherein the OTP memory comprises en instruction memory region for storing instructions, and a parameter memory region for storing standard parameters for proofreading, and
• wherein the instructions stored in the OTP memory has proofreading instructions and measuring instructions for enabling the IC operate under a proofreading mode and a measuring mode, respectively.