Quad +/- 90 V, +/- 2 A, 3/5 level, ESD-enhanced high-speed ultrasound pulser

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  • This monolithic, high-voltage, high-speed pulser generator features four independent channels. It is designed for medical ultrasound imaging applications, but can also be used to drive piezoelectric, capacitive or MEMS based transducers.

    The STHV748S is composed of 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. It also includes clamping-to-ground circuitry, anti-leakage, anti-memory effect block, thermal sensor, and a T/R switch which guarantees effective decoupling during the transmission phase. The STHV748S also 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.
    An ESD reinforced structure was developed to prevent high voltage overshoots and inrush current due to cabled transducer reflections. Each HV output is supported by a dedicate HV diode network to withstand possible reflections, mitigating excessive voltage overshoot that could lead to device damage.

    主要特性

    • Pinout compatibility with STHV748
    • Recirculation current protection
    • 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-level output waveform
      • ±2 A source and sink current
      • Down to ≤ 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
      • 205 fs RMS jitter [100 Hz-20 kHz]
    • 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
    • 1.8 V to 3.6 V CMOS logic interface
      • New digital input compatibility @ 1.8 V
    • Auxiliary integrated circuits
      • Noise blocking diodes
      • Fully self-biasing architecture
      • Anti-memory effect for all internal HV nodes
      • Thermal protection
      • Standby function
      • Reinforced diodes on HV outputs for protection by recirculation current
    • Latch-up free due to HV SOI technology
    • Very few external passive components needed

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STHV748SQ VFQFPN2 64 9x9x1.0 Tray - -
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- - EAR99
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Country of Origin:

FRANCE

没有经销商,请联系我们的销售办事处

STHV748SQ

封装

VFQFPN2 64 9x9x1.0

包装类型

Tray

单价(US$)

*

Operating Temperature (°C)

(min)

-

(max)

-

供货状态

批量生产

单价(US$)

-

数量

-

ECCN (US)

EAR99

Country of Origin

FRANCE

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

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相关应用

医疗保健

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    • 产品型号

      Evaluation board based on the STHV748S high voltage pulser

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技术文档

    • 描述 版本 文档大小 操作
      DB3145
      Quad ± 90 V, ± 2 A, 3/5 level, ESD-enhanced high-speed ultrasound pulser
      1.0
      274.7 KB
      PDF
      DB3145

      Quad ± 90 V, ± 2 A, 3/5 level, ESD-enhanced high-speed ultrasound pulser

    • 描述 版本 文档大小 操作
      AN5258
      Extending output performance of ST ultrasound pulsers
      2.0
      2.55 MB
      PDF
      AN5258

      Extending output performance of ST ultrasound pulsers

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      Products and Solutions for Medical Ultrasound brochure 1.0
      941.94 KB
      PDF

      Products and Solutions for Medical Ultrasound brochure

产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
STHV748SQ
批量生产
VFQFPN2 64 9x9x1.0 工业 Ecopack2 (**)

STHV748SQ

Package:

VFQFPN2 64 9x9x1.0

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

VFQFPN2 64 9x9x1.0

Grade

Industrial

RoHS Compliance Grade

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.