MAX14807ECB+ - 220Vpp 2.2A Dual HV Pulser | Analog Devices
部品番号: MAX14807ECB+ ✓ 生産中MAX14807ECB+ 概要
An analog pulser is a specialized high-voltage driver that converts low-voltage input signals into bipolar or unipolar waveforms suitable for piezoelectric loads. Within the product hierarchy, the MAX14807 is a high-voltage integrated circuit, analog signal-conditioning IC, ultrasound transducer driver, and power-management interface for piezoelectric systems. Its integrated approach simplifies the signal path between a waveform generator and a high-voltage transducer.
The principal specifications include 2.2 A output current, operation to 220 Vpp, a selectable 28 dB or 40 dB differential gain, and an integrated 25 ohm active clamp. The Class AB push-pull analog output stage uses an externally set bias current. These features allow the MAX14807 to produce arbitrary analog waveforms while also providing a controlled low-impedance discharge path to ground during pulse transitions.
In digital mode, the device can generate programmed high-voltage pulses rather than continuously amplified analog waveforms. This dual-mode architecture supports imaging systems that need flexible waveform generation for different transducer operating sequences. The gain-selectable differential amplifier, active clamp, and integrated high-voltage output stage reduce the amount of external high-voltage circuitry required, although the datasheet remains essential for correct high-voltage layout and safe operating limits.
Typical applications include ultrasound imaging systems, medical diagnostic equipment, industrial nondestructive-testing transducers, acoustic-emission instrumentation, and other piezoelectric drive circuits. The device is particularly relevant where a 220 Vpp waveform and 2.2 A drive capability are required from a compact mixed-signal IC.
Board-level implementation requires careful attention to high-voltage creepage, clearance, isolation, return-current paths, output-loop inductance, and transducer protection. Input and output grounding should follow the manufacturer reference layout because rapidly switching high-voltage pulses can produce significant EMI and ground-bounce effects. The 48-LQFP thermal and return-path design also depends on the PCB copper available under the device.
This product page consolidates the verified manufacturer specifications, current distributor references, functional alternatives, and application-specific design guidance. It also distinguishes explicitly confirmed drop-in replacements from similarly described devices that have not been demonstrated to be pin-to-pin compatible.
ドロップイン代替品: MAX14807ECB+ — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストMAX14807ECB+ 最大定格＆電気的特性
| Product Type | Dual high-voltage analog pulser |
| Number of Channels | 2 |
| 最大出力電流 | 2.2 A |
| Maximum High-Voltage Output | 220 Vpp |
| Analog Output Arrangement | Single-ended high-voltage waveform |
| Analog-Mode Gain | 28 dB or 40 dB, selectable |
| Input Signal | Low-voltage differential analog signal |
| Output Stage | Class AB push-pull |
| Active Clamp Resistance | 25 ohm |
| Operating Modes | Analog mode and digital mode |
| External Transformer | Not required |
| Output Bias Current | Set by an external resistor |
| Primary Load | Piezoelectric transducer |
| パッケージ | 48-pin LQFP |
| 実装タイプ | Surface Mount |
| Production Status | Production |
MAX14807ECB+ 48-pin lqfp ピン配置ガイド
MAX14807ECB+ (48-pin lqfp パッケージ) のピン配置。 このパワーデバイスは、ゲート、ドレイン、ソース端子を備えています。非極性パッケージの場合、正確なピン1の向きとフットプリントの詳細については、メーカーのデータシートを参照してください。主な用途には、電源設計、モータ駆動、負荷スイッチングがあります。
詳細なピン配置データはありません: MAX14807ECB+.
詳細は データシート をご参照ください。
主な用途
MAX14807ECB+ の用途: 6 件s: Ultrasound Imaging Systems, Medical Diagnostic Ultrasound, Industrial Nondestructive Testing, Acoustic-Emission Monitoring, Piezoelectric Actuator Control, High-Voltage Test and Measurement.
Ultrasound Imaging Systems
The MAX14807ECB+ fits ultrasound imaging because it generates high-voltage arbitrary waveforms or pulses to 220 Vpp while providing up to 2.2 A of drive current. Two integrated channels support transducer excitation without an external transformer. In analog mode, the selectable 28 dB or 40 dB differential gain accommodates different waveform amplitudes; in digital mode, programmed pulses support repeatable imaging sequences. The Class AB push-pull stage and 25 ohm active clamp help control output transitions, although PCB clearance, creepage, and return-path design must follow the manufacturer layout.
おすすめ
Medical Diagnostic Ultrasound
The MAX14807ECB+ is applicable to diagnostic ultrasound equipment requiring isolated high-voltage excitation of piezoelectric arrays. Its 220 Vpp capability and 2.2 A output current provide the fundamental drive level needed by many transducers, while the dual-channel implementation can serve matched transmit configurations. Selectable 28 dB and 40 dB gains let the signal chain control drive amplitude, and the integrated active clamp offers a defined low-impedance discharge path. Medical-system implementation still requires complete safety, isolation, leakage-current, and application-specific validation outside the device datasheet.
おすすめ
Industrial Nondestructive Testing
The MAX14807ECB+ can drive piezoelectric transducers used in industrial ultrasonic flaw detection and thickness measurement. Its two 2.2 A high-voltage outputs suit systems that generate controlled bursts into a transducer, while analog mode supports continuously varying excitation waveforms up to 220 Vpp. The selectable 28 dB or 40 dB gain reduces the need for upstream amplification when the transducer requires different excitation levels. For production test equipment, designers should verify pulse repetition rate, average power, transducer capacitance, protection, and thermal performance against the complete operating conditions.
おすすめ
Acoustic-Emission Monitoring
The MAX14807ECB+ is relevant to acoustic-emission monitoring systems that excite piezoelectric sensors or transducers with controlled high-voltage pulses. Its dual output capability permits separate drive and sensing arrangements when the architecture requires them, while analog and digital modes allow either shaped waveforms or discrete excitation events. A 220 Vpp, 2.2 A drive stage can eliminate an external transformer in suitable designs. Sensor selection must account for capacitance, dielectric loading, pulse width, repetition rate, and safe excitation limits because those parameters determine whether the 2.2 A rating is adequate.
おすすめ
Piezoelectric Actuator Control
The MAX14807ECB+ can serve as the high-voltage driver for piezoelectric actuators requiring bipolar or shaped voltage waveforms. Its Class AB push-pull analog stage, selectable 28 dB or 40 dB gain, and output capability up to 220 Vpp provide a compact alternative to discrete high-voltage drive networks. Digital mode is useful for predefined motion or force sequences, while analog mode permits closed-loop waveform shaping. Mechanical safety requires current limiting, resonant-load analysis, and careful consideration of the capacitive current drawn by the actuator during each voltage transition.
おすすめ
High-Voltage Test and Measurement
The MAX14807ECB+ can be used in specialized high-voltage test equipment that must excite piezoelectric loads with repeatable waveforms. The dual-channel architecture can support parallel tests or separate excitation channels, and the 2.2 A capability addresses the current required by capacitive loads during rapid transitions. Selectable gain provides coarse control before the transducer and fixture, while the integrated 25 ohm active clamp controls discharge behavior. Engineers must separately verify measurement accuracy, fixture parasitics, insulation, safety interlocks, and the maximum allowable average dissipation for their duty cycle.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: MAX14807ECB+ — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 |
|---|---|
| Product Type | Dual high-voltage analog pulser |
| Brand | Analog Devices |
| Package | 48-pin LQFP |
| Number of Channels | 2 |
| Maximum High-Voltage Output | 220 Vpp |
| Maximum Output Current | 2.2 A |
| Analog Gain | 28 dB or 40 dB, selectable |
| Operating Modes | Analog and digital |
| Output Stage | Class AB push-pull |
| Active Clamp Resistance | 25 ohm |
| External Transformer | Not required |
| Starting Price at 1,000 Units | $31.21 as of 2026-10-29 |
主な差別化要因
- Integrated dual high-voltage output （vs Discrete or transformer-based pulser designs)
- Selectable differential gain （vs Single-gain analog drivers)
- Combined analog and digital operating modes （vs Single-mode high-voltage pulse drivers)
- Integrated active clamp （vs Externally switched clamp networks)
設計ノート
Implement the high-voltage section as a guarded layout with the clearance and creepage required for the maximum 220 Vpp operating waveform and the pollution, altitude, and safety conditions of the finished product. Keep the MAX14807ECB+ output pins, transducer connector, protection components, and test points away from low-level signal areas. The exposed package connection and every return-current point must follow the official Analog Devices recommended layout rather than relying on generic high-voltage spacing rules.
Minimize the loop formed by the MAX14807 output, transducer connection, and return ground because the 2.2 A output capability can produce fast edges with substantial di/dt. Use short and appropriately wide conductors, continuous ground planes where permitted, and a low-inductance return path for the active clamp. Place transient-protection and damping components close to the transducer connector. Review the board with an oscilloscope for ground bounce and ringing before increasing output voltage, frequency, or pulse repetition rate.
Size the high-voltage supply, decoupling network, output energy path, and transducer protection for both peak and average demand. A 2.2 A rating describes output-drive capability rather than continuous permitted dissipation, and a capacitive transducer can draw high current during each transition. Check the manufacturer electrical characteristics for supply limits, output-current derating, duty-cycle restrictions, and thermal conditions. Add controlled current limiting or an external clamp only if it does not alter the required pulse waveform or violate the device's operating conditions.
Do not treat the 220 Vpp capability as proof that any cable, connector, probe, or PCB coating is automatically safe. Verify insulation ratings, connector voltage rating, probe derating, fixture clearance, and user-accessible protection. Also avoid assuming that the 25 ohm active clamp eliminates all output overvoltage: cable reflections, inductive loads, and incorrect external protection can still create hazards. Consult the complete manufacturer datasheet for high-voltage precautions and use an appropriately rated, energy-isolated measurement setup.
High-voltage switching edges can couple into neighboring analog and digital circuitry even when the waveform itself is intended. Keep the 48-pin LQFP output routing away from sensitive nodes, use a solid low-impedance ground architecture, and place filtering or shielding where measurements show coupling. During validation, capture both the high-voltage output and small-signal rails with suitable differential probing techniques. If radiated emissions exceed the applicable product limits, reduce edge rates only if waveform integrity permits and then reconfirm transducer performance.
コンプライアンス情報
The supplied verified web data identifies the device as being in production but does not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred from the manufacturer name or package.
