Disclosed is an analog-digital converter capable of simultaneously obtaining a voltage and a current. The disclosed analog-digital converter can simultaneously obtain a voltage and a current by using a hybrid integrator for simultaneously receiving and integrating the voltage and the current and a quantizer for generating a differential mode output and a common mode output through comparison with a reference voltage. By using the analog-digital converter according to an exemplary embodiment, the size of a system can be maintained small while consuming less power, and thus a biometric response can be easily identified and analyzed.
