STHV748
5-level, ±90 V, 2 A high speed pulser with four independent channels-
アクティブ
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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データシート
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
回路 ダイアグラム
模様 資源
トップTechnical Documentation
Product Specifications
| 描写 | 稿 | 大きさ |
|---|---|---|
DS6123: Quad ± 90 V, ± 2 A, 3/5 levels, high speed ultrasound pulser
|
4.0 | 662 KB |
Application Notes
| 描写 | 稿 | 大きさ |
|---|---|---|
|
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
| 描写 | 稿 | 大きさ |
|---|---|---|
|
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
| 製品型名 | 描写 |
|---|---|
| STEVAL-IME003V1 | Demonstration board based on the STHV748 high voltage pulser |
Publications and Collaterals
Brochure
| 描写 | 稿 | 大きさ |
|---|---|---|
|
Semiconductor solutions for healthcare applications
|
1.0 | 665 KB |
サンプル& 購入
トップ| 製品型名 | 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 | |||||||||||||||||||||
(*) 概算見積もり用になり通貨単位が価格（USD）。詳細情報については、現地通貨での価格は、地元の販売店にお問い合わせください ST 販売の オフィス または当社 代理店 (**) st.comで利用可能な材質宣言フォームはパッケージ·ファミリの中で最も一般的に使用されるパッケージに基づいて一般的な文書かもしれません。このような理由から、彼らは、特定のデバイスのための100％正確ではないかもしれません。当社までご連絡ください セールスサポート 特定のデバイスの詳細については、 |
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