Features: ►HVCMOS technology for high performance
►0 to ±100V output voltage
►±2A source and sink current
►Built-in damping for RTZ waveform capability
►Gate-clamp for quick output amplitude ramping
►Up to 40MHz operation frequency
►±3ns matched delay times
►Second harmonic is less than -40dB
►1.8V to 3.3V CMOS logic interface
►7x7 thermally-enhanced 44-lead QFN MCM
ApplicationMedical ultrasound imagingSpecificationsParameter Value
VLL, logic supply -0.5V to +5.5V
VDD, positive gate drive supply -0.5V to +15V
AVDD, positive gate drive supply -0.5V to +15V
VLN, Negative gate drive supply -5.5V to +0.5V
VPP-VNN, differential high voltage supply +220V
VPP, high voltage positive supply -0.5V to +200V
VNN, high voltage negative supply +0.5V to -200V
Storage temperature -65 to 150
Thermal enhanced package power dissipation 1.5W
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Continuous operation of the device at the absolute rating level may affect device reliability. All voltages are referenced to device ground.
DescriptionThe Supertex HV732 is a single, complete, high-voltage, high-speed, ultrasound transmitter pulser. It is designed for medical ultrasound imaging applications.
The HV732 has built-in damping for faster RTZ waveform capability and high voltage MOSFET gate-clamping function for quick ramping of the output voltage amplitude.
The HV732 consists of a control logic circuit, level translators, MOSFET gate drive buffers, clamp circuits, and high current, high voltage MOSFETs as the ultrasound transmitter pulser output stage.
In the output stage there are two pairs of MOSFETs. Each pair consists of a P-channel and an N-channel MOSFET. HV732 are designed to have the same impedance, and can provide peak currents of over ±2 amps. The built-in MOSFET gate driver outputs swing 0 to 12V on PDR and NDR pins. The P-channel damp output swings 0 to 5V on the DMPO pin.
HV732 Data Sheet
