This paper introduces the design of high-gain bandwidth high-SNR low-power low-voltage fourth-order single-bit continuous-time delta-sigma modulator (CTDSM) aimed at use in high-performance sensors, medical equipment, and audio/video recorder applications. Two of the most crucial parameters of these applications are bandwidth and power consumption. In order to improve them, some main techniques are implemented in this design: body-driven amplifiers are used to provide low-voltage operation and minimize total power consumption; chopped negative-R technique is useful for increasing the modulator’s bandwidth; and passive integrators are inserted to further reduce power consumption. The proposed modulator without using these techniques (chopped negative-R and passive integrators) has lower bandwidth and higher power consumption. The designed CTDSM implemented using 180 nm CMOS technology results in a 141.7 dB SNR within a 2.5 MHz bandwidth, dissipates only 94.49 µW with a supply voltage of 0.6 V, and shows a figure of merit of 0.0019 fJ/conversion.