The HV7355 is an 8-channel unipolar high-voltage high-speed pulse generator. It is designed for medical ultrasound applications. This high-voltage and high-speed integrated circuit can also be used for other piezoelectric, capacitive or MEMS sensors in ultrasonic non-destructive detection and sonar ranger applications. The HV7355 consists of a controller logic interface circuit, level translators, MOSFET gate drivers and high-current P-channel and N-channel MOSFETs as the output stage for each channel. The output stages of each channel are designed to provide peak output currents of ±1.5A for pulsing, when MC = 1, with up to 150V swings. When MC = 0, all the output stages drop the peak current to ±500 mA for low-voltage CW mode operation to save power. This direct coupling topology of the gate driver not only saves one high-voltage capacitor per channel but also makes the PCB layout easier.