HV7350

Supertex inc. HV7350 Eight-Channel, High Speed, ±60V, ±1.0A, Ultrasound RTZ Pulser Features ►► HVCMOS technology for high performance ►► High density integrated ultrasound transmitter ►► 0 to ±60V output voltage ►► ±1.0A source and sink current in pulse mode ►► ±1.0A source and sink current in RTZ mode ►► Up to 20MHz operating frequency ►► Matched delay times ►► Optional clock re-alignment ►► 3.3V CMOS logic interface and reference ►► +3.3V low voltage supply for VDD ►► Built-in linear regulators for floating gate driver ►► Built-in output drain diodes & bleed resistors Application ►► Portable medical ultrasound imaging ►► Piezoelectric transducer drivers ►► Pulse waveform generator General Description The Supertex HV7350 is an eight channel monolithic high voltage highspeed pulse generator with built-in fast return to zero damping FETs. This high voltage and high-speed integrated circuit is designed for portable medical ultrasound image devices. HV7350 consists of a controller logic interface circuit, level translators, MOSFET gate drives, and high current power P-channel and N-channel MOSFETs as the output stage for each channel. The output peak currents of each channel are guaranteed to be over ±1.0A with up to ±60V pulse swings as well as return-to-zero (RTZ) mode. The gate drivers for the output MOSFETs are powered by built-in linear 5.0V regulators referenced to VPP and VNN. This direct coupling topology of the gate drivers not only saves four floating voltage suppl...