MAX14807ECB+T - Dual 2.2A 220Vpp Analog Pulser | Analog Devices
Référence : MAX14807ECB+T ✓ ActifMAX14807ECB+T Présentation
A high-voltage analog pulser is an integrated signal-conditioning and power-driver circuit that converts low-voltage commands or differential analog signals into substantially larger voltage and current levels. This device sits between a low-voltage signal source and a piezoelectric transducer, combining amplifier, gain selection, output-stage drive, active clamping, and protection functions in one package. That integration reduces the number of external high-voltage signal-chain stages required in an ultrasound transmitter.
The MAX14807 features gain selection between 28dB and 40dB for its differential input amplifier. Analog mode uses this gain-selectable amplifier and Class AB push-pull output stage to produce high-voltage arbitrary waveforms. Digital mode provides direct high-voltage pulse generation, while the external bias resistor establishes the output-stage bias current. According to the manufacturer datasheet, the active clamp presents a 25Ω low-impedance path to ground, helping discharge the transducer output and return the circuit to a defined state between pulses.
The device supports waveforms or pulses up to 220Vpp and provides output current of 2.2A. These ratings make it relevant to ultrasound imaging, industrial acoustic testing, nondestructive evaluation, piezoelectric positioning, and laboratory waveform systems. Because the output stage is intended to drive a capacitive transducer, pulse duration, repetition rate, duty cycle, transducer capacitance, and output dissipation should be evaluated together rather than independently.
A key design consideration is that a 220Vpp capability does not eliminate the need for careful board-level insulation, creepage, clearance, and high-voltage layout practices. Keep high-voltage copper away from low-level inputs and external programming interfaces. Follow the manufacturer datasheet for bypass capacitors, bias-resistor selection, transducer connections, exposed-pad layout, and thermal constraints.
This product page consolidates the manufacturer's operating modes and electrical highlights with application guidance, engineering design notes, lifecycle information, and an authenticity-controlled comparison of available drop-in alternatives. It is intended to help engineers evaluate whether the MAX14807ECB+T matches a high-voltage pulser requirement before committing a PCB layout.
Alternatives de remplacement direct pour MAX14807ECB+T — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesMAX14807ECB+T Valeurs maximales et caractéristiques électriques
| Device Type | Dual high-voltage analog pulser |
| Maximum Output Voltage | 220 Vpp |
| Output Current | 2.2 A |
| Number of Channels | 2 |
| Low-Voltage Gain Option | 28 dB |
| High-Voltage Gain Option | 40 dB |
| Analog Output Stage | Class AB push-pull |
| Active Clamp Resistance | 25 ohm |
| Operating Modes | Analog mode and digital mode |
| External Transformer Requirement | None required |
| Differential Input | Differential low-voltage signal input |
| Output Stage Bias | Externally set by resistor |
Guide de configuration des broches du MAX14807ECB+T standard
Configuration des broches du MAX14807ECB+T (boîtier standard). Ce composant analogique comporte des broches d'entrée, de sortie et d'alimentation. Consultez la fiche technique du fabricant pour les configurations des broches d'annulation d'offset, de compensation et d'activation. Idéal pour le conditionnement de signaux et les circuits amplificateurs.
Aucune donnée de brochage détaillée disponible pour MAX14807ECB+T.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MAX14807ECB+T convient pour 6 applications: Ultrasound Imaging Transducer Drive, Industrial Ultrasonic Testing, Piezoelectric Nondestructive Evaluation, Laboratory Arbitrary Waveform Excitation, Piezoelectric Positioning and Actuation, High-Voltage Sensor and Acoustic Test Systems.
Ultrasound Imaging Transducer Drive
The MAX14807ECB+T fits ultrasound imaging systems that require high-voltage excitation of piezoelectric transducers without an external transformer. Its integrated dual-channel architecture produces waveforms or pulses up to 220Vpp with 2.2A output current, while analog mode can amplify low-voltage differential excitation signals through the selectable 28dB or 40dB gain stage. The Class AB push-pull output and integrated 25Ω active clamp help establish controlled drive and discharge states. Design the PCB with the transducer connector and high-voltage output routing isolated from sensitive receiver channels, and validate the selected probe against pulse duration, repetition rate, capacitance, and thermal limits.
Industrial Ultrasonic Testing
The MAX14807ECB+T is suitable for industrial ultrasonic inspection systems that drive piezoelectric probes with programmed bursts or arbitrary waveforms. The 220Vpp output capability provides the voltage range commonly needed for piezoelectric excitation, while 2.2A output current supports the transducer interface without a discrete high-voltage output stage. Analog mode offers selectable differential gain of 28dB or 40dB, and digital mode supports pulse-oriented operation. Equipment designers should confirm probe capacitance, burst length, repetition rate, duty cycle, and output dissipation, while separating the high-voltage driver from low-level timing and acquisition circuitry.
Piezoelectric Nondestructive Evaluation
The MAX14807ECB+T can serve as the high-voltage excitation source in ultrasonic nondestructive evaluation equipment. Its analog mode accepts low-voltage differential commands and uses the gain-selectable differential amplifier and Class AB push-pull stage to create transducer waveforms up to 220Vpp. Digital operation offers an alternative path for controlled pulse generation, and the integrated active clamp provides a 25Ω path to ground between excitation events. The important engineering trade-off is thermal and acoustic performance rather than package compatibility: verify peak current, waveform duty cycle, probe capacitance, cable loading, and permitted repetition rate against the manufacturer datasheet.
Laboratory Arbitrary Waveform Excitation
The MAX14807ECB+T fits laboratory instruments that convert low-voltage arbitrary commands into high-voltage waveforms for piezoelectric actuators and test fixtures. The selectable 28dB and 40dB differential gains allow the system to establish the required drive level, while analog mode supports waveform shaping and digital mode supports discrete pulse patterns. With output capability reaching 220Vpp and 2.2A, the device can reduce external high-voltage amplification stages. Instrument designers must account for waveform slew behavior, load capacitance, external output-bias resistor selection, protective grounding, and the physical separation required between high-voltage and measurement paths.
Piezoelectric Positioning and Actuation
The MAX14807ECB+T can be evaluated for piezoelectric positioning systems that require higher drive voltage than a conventional low-voltage amplifier can provide. The integrated differential amplifier accepts a small command signal, selects 28dB or 40dB gain, and applies it to the Class AB push-pull output, allowing a single IC to provide both amplification and high-voltage drive. The 220Vpp and 2.2A ratings are meaningful only when they remain within the actuator's reactive-load and thermal envelope. Evaluate displacement, hysteresis, resonance, pulse repetition, and cable capacitance before using the pulser in a closed-loop positioning system.
High-Voltage Sensor and Acoustic Test Systems
The MAX14807ECB+T supports high-voltage acoustic test systems that excite piezoelectric sensors or transducers and compare their responses with reference waveforms. Its dual-channel organization allows two high-voltage drive channels where the system architecture benefits from matched or independent excitation. Analog mode preserves waveform control through the selectable differential gain, while the 25Ω active clamp helps return the output to ground between events. System integrators should account for cable capacitance, probe resonances, amplifier input protection, timing synchronization, and the difference between peak amplitude and continuous RMS dissipation when defining the operating profile.
Données de référence d'ingénierie pour MAX14807ECB+T — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Brand | Analog Devices |
| Device Type | Dual high-voltage analog pulser |
| Maximum Output Voltage | 220 Vpp |
| Output Current | 2.2 A |
| Low-Voltage Gain Option | 28 dB |
| High-Voltage Gain Option | 40 dB |
| Operating Modes | Analog mode and digital mode |
| Output Stage | Class AB push-pull |
| Active Clamp Resistance | 25 ohm |
| External Transformer Requirement | None required |
Notes de conception
Treat every connection between the output stage and the transducer as high-voltage circuitry. Route the 220V-capable net with generous spacing from low-voltage input, logic, programming, and test points, and follow the Analog Devices datasheet for creepage, clearance, bypass placement, and exposed-pad connections. Keep the transducer return and active-clamp return path compact so stored transducer energy is directed through the intended discharge route rather than through long ground loops.
Evaluate thermal performance from the actual waveform, not only its 220Vpp peak. A low-duty-cycle pulse and a continuous high-amplitude waveform can produce very different output-stage dissipation. Use the manufacturer limits for pulse duration, repetition rate, duty cycle, and junction temperature, and provide copper area and thermal vias according to the datasheet land pattern. Verify the assembled board in its intended enclosure because airflow and neighboring heat sources affect the result.
Do not select the external output-bias resistor without reproducing the Analog Devices bias-current procedure for the intended load and output configuration. Also avoid assuming that the active clamp eliminates the need for a defined output state. Review the complete startup sequence, digital-mode pulse timing, transducer capacitance, and external protection strategy. These checks are especially important when a transducer has a high resonant frequency or a long pulse duration.
Separate the low-level differential input from the high-voltage output stage and keep the input return path away from the push-pull output and clamp current loops. Place input, bias, and bypass components close to their associated pins, and follow the manufacturer's component-placement examples where practical. A compact low-level signal path reduces susceptibility to the common-mode and transient fields created during high-voltage transducer excitation.
Informations de conformité
The MAX14807ECB+T ordering suffix normally identifies a lead-free option, but the available product information does not explicitly state the required compliance attributes. Confirm RoHS, REACH, AEC-Q100, halogen-free, and conflict-minerals status in the manufacturer's current product documentation.
