configured to include two resistors such as a first resistor r 1 and a second resistor r 2 the first and second voltage dividing resistors r 1 and r 2 may be connected in series between the drain of the first mosfet m 1 and the ground the connection node of the first and second voltage dividing resistors r 1 and r 2 is connected to a second input of the operational amplifier op through the connection structure the first and second voltage dividing resistors r 1 and r 2 divide the output voltage vout according to the resistance value and provide it the voltage difference between two inputs is 0 due to the characteristics of a virtual ground of the operational amplifier op such that the voltage divided by the first and second voltage dividing resistors r 1 and r 2 has the same value as the input voltage that is the input voltage vin may be expressed by the following equation 1 and the output voltage vout by the following equation 1 may be determined by the following equation 2 equation 1 that is the voltage level shifter according to the exemplary embodiment of the present invention shown in fig1 may output the output voltage vout provided by shifting the input voltage by vin r 1 r 2 r 2 times when the second mosfet m 2 is turned off the second mosfet m 2 has a source and a drain respectively connected to both ends of at least one resistor r 1 of the voltage dividing resistors and has a gate connected to the.