In this paper, a new pulse width modulation (PWM) converter is proposed. This structure converts the analog input signal to a PWM waveform using only inverters/charge-pumps in combination with passive elements. Thus, the proposed PWM converter does not need any operational amplifier. The added feedback path current can be used to adjust the required duty-cycle of the PWM conversion based on the dynamic range of the input signal. The behavior of the proposed PWM converter is formulated and simulated in a 0.13 mu m CMOS technology. From the simulation results, the proposed PWM converter achieves 74dB linearity and draws only 1.0mA at 500MHz from 1.0V supply in a 0.13 mu m process.