STHV748
5-level, ±90 V, 2 A high-speed pulser with four independent channels
Preliminary data
Features
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High-density ultrasound transmitter 0 to ±90 V output voltage Up to 20 MHz operating frequency Low-power, high-voltage drivers 2 independently supplied half bridges for each channel in pulse wave (PW) mode – 5-level output waveform – ±2 A source and sink current – Down to 20 ps jitter – Anti-cross conduction function – Low 2nd harmonic distortion – Fine-tuning on propagation delay F.
2A high-speed pulser
STHV748
5-level, ±90 V, 2 A high-speed pulser with four independent channels
Preliminary data
Features
■ ■ ■ ■ ■
High-density ultrasound transmitter 0 to ±90 V output voltage Up to 20 MHz operating frequency Low-power, high-voltage drivers 2 independently supplied half bridges for each channel in pulse wave (PW) mode – 5-level output waveform – ±2 A source and sink current – Down to 20 ps jitter – Anti-cross conduction function – Low 2nd harmonic distortion – Fine-tuning on propagation delay Fully integrated clamping-to-ground function – 6 Ω synchronous active clamp – Anti-leakage on output node Dedicated half bridge for continuous wave (CW) mode on each – Down to 0.1 W power consumption – ±0.6 A source and sink current – Down to 10 ps jitter HV receiver switch – 13.5 Ω on resistance – HV MOS topology to minimize current consumption – Up to 300 MHz BW 2.4 V to 3.6 V CMOS logic interface Auxiliary integrated circuits – Noise blocking diodes – Fully self-biaising architecture – Anti-memory effect for all internal HV nodes – Thermal protection – Stand by function Latch-up free due to HV SOI technology Very few external passive components needed QFN64 9 x 9 x1.0 mm
Applications
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Medical ultrasound imaging Pulse waveform generator NDT ultrasound transmission Piezoelectric transducers driver
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Description
This monolithic, high-voltage, high-speed pulser generator features four independent channels. It is designed for medical ultrasound applications, but can also be use.