STHV800L

STHV800L is an octal ±90V, ±2A, 3-level RTZ, monolithic, high-voltage and high-speed pulse generator. The device integrates a controller logic interface circuit (compatible with both 1.8V and 3.3V input signals), level translators, MOSFET gate drivers, noise blocking diodes, and high power P-channel and N-channel MOSFETs as the output stage for each channel. These MOSFETs are capable of providing more than 2A of peak output current. Each channel has a dedicated bridge in order to reduce power dissipation and jitter during continuous wave mode (peak current is limited to 0.3A). This CW bridge has dedicated power supplies (HV_CW) which are fully independent on the main HV supplies. It is designed for medical ultrasound applications, but can be used for other piezoelectric, capacitive or MEMS transducers.

• High-density ultrasound transmitter
• Two independent half-bridges per channel
• 0 to ±90V output voltage
• Synchronization of the input signals (selectable) by an external clock
• Up to 20MHz operating frequency, Low-power, high-voltage, high-speed drivers
• 2 independently-supplied half bridges (shorted-option) for each channel
• One dedicated to continuous wave (CW) mode
• Fully integrated real clamping-to-ground function, fully integrated TR switch
• Auxiliary integrated circuits, latch-up free due to HV SOI technology
• 56lead TFLGA package