A signal transmitting circuit includes a first output control circuit, a second output control circuit, a first output driver, and a second output driver. The first output control circuit generates a first main driving signal based on a first control signal and generates a first auxiliary driving signal based on the first control signal and a second control signal. The second output control circuit generates a second main driving signal based on the second control signal and generates a second auxiliary driving signal based on the first control signal and the second control signal. The first output driver drives an output node based on the first main driving signal and the first auxiliary driving signal. The second output driver drives the output node based on the second main driving signal and the second auxiliary driving signal.