STHV748
5-level, ±90 V, 2 A high speed pulser with four independent channels-
活性
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.
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数据表
Key Features
- 0 to ±90 V output voltage
- Up to 20 MHz operating frequency
- Embedded low-power, floating high-voltage drivers (external voltage rails can be also used)
- Mode operations:
3/5-levels output waveform ±2 A source and sink current Down ≤ 20 ps jitter Anti-cross conduction function Low 2nd harmonic distortion - Fully integrated clamping-to-ground function
8 Ω synchronous active clamp Anti-leakage on output node - Dedicated half bridge for continuous wave (CW) operations
≤ 0.1 W power consumption ±0.6 A source and sink current ≤ 10 ps jitter - Fully integrated T/R switch
13.5 Ω on resistance HV MOS topology to minimize current consumption Up to 300 MHz BW Receiver multiplexing function - 2.4 V to 3.6 V CMOS logic interface
- Auxiliary integrated circuits
Noise blocking diodes Fully self-biasing architecture Anti-memory effect for all internal HV nodes Thermal protection Standby function - Latch-up free due to HV SOI technology
- Very few external passive components needed
线路 图表
图案 资源
顶部Technical Documentation
Product Specifications
| 描述 | 版本 | 大小 |
|---|---|---|
DS6123: Quad ± 90 V, ± 2 A, 3/5 levels, high speed ultrasound pulser
|
4.0 | 662 KB |
Application Notes
| 描述 | 版本 | 大小 |
|---|---|---|
|
AN3240: Ultrasound HV pulser demonstration board
|
1.1 | 1,227 KB |
|
AN3961: STEVAL-IME003V1 demonstration board based on the STHV748 high voltage pulser
|
2.0 | 2,429 KB |
User Manual
| 描述 | 版本 | 大小 |
|---|---|---|
|
UM1083: How to upgrade the waveforms on the STEVAL-IME003V1 demonstration board
|
1.0 | 1,475 KB |
Related Tools and Software
Related Tools and Software
| 产品型号 | 描述 |
|---|---|
| STEVAL-IME003V1 | Demonstration board based on the STHV748 high voltage pulser |
Publications and Collaterals
Brochure
| 描述 | 版本 | 大小 |
|---|---|---|
|
Semiconductor solutions for healthcare applications
|
1.0 | 665 KB |
样品 & 购买
顶部| 产品型号 | Marketing Status | Package | Packing Type | Operating Temperature (min) | Operating Temperature (max) | Automotive Grade | Order From ST | Unit Price (US$)* @ | Distributor Availability | RoHS Compliance Grade | Download Material Declaration** |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STHV748QTR | Active | VFQFPN2 64 9x9x1.0 | Tray | -40 | 125 | _ | - |
| Ecopack2 | PDF XML | ||||||||||||||||
(*) 建议零售价格仅用于预算，以美元为单位，每。的报价，以当地货币计算的价格，请联系您当地的 ST 销售办事处 或我们的 分销商 (**) 材料声明表格上提供st.com可以是一般的文件，根据最常用的包，包内的家庭。出于这个原因，他们可能不是100％准确，对于一个特定的设备。请联系我们 销售支持 在特定设备上的信息。 |
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