This monolithic, high-voltage, high-speed pulser generator features four independent channels. It is designed for medical ultrasound imaging applications, but it can also be used for driving other piezoelectric, capacitive or MEMS based transducers. The STHV748 comprises a controller logic interface circuit, level translators, MOSFET gate drivers, noise blocking diodes, and high-power P-channel and N-channel MOSFETs as the output stage for each channel, clamping-to-ground circuitry, anti-leakage, anti-memory effect block, thermal sensor, and a T/R switch which guarantees an effective decoupling during the transmission phase. Moreover, the STHV748 includes self-biasing and thermal shutdown blocks. Each channel can support up to five active output levels with two half bridges. The output stage of each channel is able to provide ±2 A peak output current. In order to reduce power dissipation during continuous wave mode, a dedicated half bridge is available and the peak current is limited to 0.6 A.
|DS6123: Quad ± 90 V, ± 2 A, 3/5 levels, high speed ultrasound pulser||5.0||807 KB|
|AN3961: STEVAL-IME003V1 demonstration board based on the STHV748 ultrasound pulser||3.0||2 MB|
|AN3240: Ultrasound HV pulser demonstration board||1.1||1 MB|
|UM1083: How to upgrade the waveforms on STEVAL-IME003V1, STEVAL-IME008V1 and STEVAL-IME009V1 evaluation boards||2.2||580 KB|
|Octal ultrasound pulser High-voltage, high-speed STHV800||276 KB|
|Semiconductor solutions for healthcare applications||1.0||665 KB|
|Part Number||Package||Packing Type||Operating Temperature (°C) (min)||Operating Temperature (°C) (max)||Marketing Status||Unit Price (US$) *||Quantity||ECCN (EU)||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|STHV748QTR||VFQFPN2 64 9x9x1.0||Tray||-40||125||NRND : Not Recommended for New Design. Product is in volume production only to support customers ongoing production.||-||-||NEC||EAR99||-||MORE INFO||DISTRIBUTOR AVAILABILITY|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
|STHV748QTR||NRND||VFQFPN2 64 9x9x1.0||Industrial||Ecopack2|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.