AD773-EB - 10-Bit 18 MSPS ADC Evaluation Board | Analog Devices
MPN： AD773-EB ✗ 停產AD773-EB 概覽
An analog-to-digital converter is a data-acquisition IC that samples an analog input and converts it into a digital representation. For high-speed video applications, resolution and sampling rate form a basic trade-off: 10 bits provide 1024 quantization levels, while 18 MSPS permits approximately 18 million conversions each second. The AD773's integrated track-and-hold amplifier is particularly relevant to video signals because it reduces the number of external components required for acquisition.
The principal verified performance characteristics are 10-bit resolution, an 18 MSPS conversion rate, monolithic construction, and an integrated high-performance track-and-hold amplifier. According to the Analog Devices AD773 product page, the converter is intended to convert video-bandwidth signals without requiring an external track-and-hold amplifier. These attributes position it for high-speed video measurement, imaging, and general-purpose signal-capture prototypes where a complete evaluation platform is more useful than a loose IC.
The AD773-EB provides a practical way to characterize the converter before committing to a production design. Evaluation normally involves applying a known analog input, capturing the resulting digital codes, and checking conversion speed, code width, linearity, and analog front-end behavior. Exact input-range, output-interface, clock, reference-voltage, and power-supply details are not available in the supplied verified data and must be confirmed in the AD773 documentation and the board user guide before design-in.
Typical uses include video signal conditioning evaluation, image-acquisition prototyping, waveform capture, communications front-end development, and educational demonstrations of flash-converter behavior. The 18 MSPS throughput is well suited to repetitive sampling and laboratory instrumentation, while the integrated track-and-hold amplifier simplifies source interfacing. Applications requiring more than 10-bit resolution or higher dynamic range should use a higher-resolution converter rather than treating the AD773-EB as a universal acquisition platform.
The principal design consideration is verification. Before connecting external circuitry, confirm the supported analog input range, allowable input bandwidth, supply connections, digital output interface, clocking method, and reference requirements from the official AD773 datasheet and evaluation-board documentation. Component placement on an evaluation board does not guarantee that every source-impedance, grounding, or signal-integrity configuration can be reproduced directly in production.
This page separates verified facts from unavailable technical fields and consolidates the manufacturer product information, distributor listings, application guidance, and sourcing considerations for AD773-EB. It is intended to help engineers identify whether this evaluation platform fits a high-speed 10-bit acquisition requirement while clearly flagging parameters that still require verification.
直接替換替代品，適用於 AD773-EB — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此產品無可直接替換的替代品。
申請替代品AD773-EB 最大額定值與電氣特性
| Product Type | ADC evaluation board |
| Converter Under Evaluation | AD773 |
| 解析度 | 10 bit |
| 取樣率 | 18 MSPS |
| Architecture | Monolithic analog-to-digital converter |
| Track-and-Hold Amplifier | Integrated on-board high-performance track-and-hold amplifier |
| External Track-and-Hold Requirement | Not required for video-bandwidth conversion |
| Intended Signal Class | Video-bandwidth signals |
| Quantization Levels | 1024 levels |
| Maximum Sampling Rate | 18 million conversions per second |
AD773-EB standard 腳位配置指南
AD773-EB（standard 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： AD773-EB.
請參閱 資料表 以查看完整腳位配置。
典型應用
AD773-EB 適用於 6 應用s: High-Speed Video Signal Acquisition, Imaging and Sensor Interface Prototyping, Waveform Capture and Signal Integrity Studies, Communications Front-End Development, Test and Measurement Instrumentation, Engineering Education and Converter Demonstration.
High-Speed Video Signal Acquisition
The AD773-EB fits early evaluation of video-bandwidth acquisition because the AD773 converts at 18 MSPS with 10-bit resolution and includes its own high-performance track-and-hold amplifier. According to the Analog Devices product page, this integration eliminates the need for an external track-and-hold stage. A development team can route a conditioned video signal to the board, capture digital output codes, and assess whether 1024 quantization levels are adequate for the target display, imaging, or monitoring path. The practical trade-off is that 10-bit data provides less vertical resolution than the 16-bit peak-to-peak performance associated with the AD7732 family, so applications needing subtle luminance differences should prototype with the higher-resolution platform instead.
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Imaging and Sensor Interface Prototyping
AD773-EB can support imaging-front-end experiments where a sensor output must be sampled quickly enough to preserve time-varying video information. The 18 MSPS sampling rate of the AD773 gives a prototype more acquisition headroom than many low-rate general-purpose converters, while the integrated track-and-hold amplifier simplifies conditioning around the converter. The 10-bit result still limits usable dynamic range, making it more appropriate for thresholding, positioning, or motion-related tests than for high-fidelity image reconstruction. Engineers should verify the board's analog input range, source-impedance requirements, and reference accuracy from official documentation before connecting a particular sensor or line driver.
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Waveform Capture and Signal Integrity Studies
The AD773-EB is useful for laboratory waveform-capture studies because the AD773 performs up to 18 million conversions per second and includes a high-performance track-and-hold amplifier on the monolithic converter. That combination allows repeated sampling of video-bandwidth signals without acquiring a separate external sampling-and-hold block. The board can support comparisons of amplitude, timing, code stability, and source-drive behavior during early circuit development. Since the verified data does not state the digital output interface, clock configuration, or input bandwidth, system users must confirm those details before building an automated capture bench; the evaluation board is a characterization platform rather than a complete USB acquisition instrument.
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Communications Front-End Development
AD773-EB can be evaluated for communications front ends that must digitize bursty or rapidly changing analog waveforms. The 18 MSPS sampling rate offers sufficient timing granularity for many video-bandwidth measurement and signal-characterization tasks, while the AD773's integrated track-and-hold amplifier reduces the external analog acquisition complexity identified by Analog Devices. The 10-bit resolution should be matched to the modulation, envelope-detection, or feedback-control requirement rather than assumed sufficient for every waveform. Before reuse in a production receiver, engineers should verify input range, clock jitter tolerance, digital output timing, and supply requirements from the manufacturer documentation because those parameters are not present in the supplied verified snippets.
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Test and Measurement Instrumentation
AD773-EB can serve as the converter element in an experimental laboratory instrument when repetitive sampling is more important than very high resolution. Its 18 MSPS rate permits dense sampling of repeating waveforms, and the integrated track-and-hold amplifier helps the analog front end deliver a stable sample to the converter. Engineers can use the platform to investigate gain, bandwidth, and code-width behavior before selecting a production converter. Because the verified information does not identify the package, pinout, interface, or reference circuitry, the board should be used within its documented evaluation setup; connector mapping and software support cannot be assumed to match unrelated ADC development boards.
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Engineering Education and Converter Demonstration
AD773-EB provides a clear platform for demonstrating how a monolithic 10-bit, 18 MSPS ADC captures video-bandwidth signals. Its integrated high-performance track-and-hold amplifier makes the architecture easy to relate to a complete acquisition path instead of an abstract converter block. Students or application engineers can observe digital code changes as the analog input varies, relate sampling rate to observed signal events, and compare 10-bit quantization with the finer resolution associated with the AD7732 family. The board is especially valuable for teaching sampling, hold, quantization, and digital reconstruction. Because interface and pin details are not available in the supplied data, the demonstration should follow the original board documentation rather than relying on unverified schematic assumptions.
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推薦產品摘要
工程參考資料，適用於 AD773-EB — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 |
|---|---|
| Brand | Analog Devices |
| Resolution | 10 bit |
| Sampling Rate | 18 MSPS |
| Converter Architecture | Monolithic |
| Track-and-Hold Amplifier | Integrated on-board high-performance track-and-hold amplifier |
| External Track-and-Hold Required | No |
| Intended Signal Class | Video-bandwidth signals |
| Product Form | Evaluation board |
主要差異化特點
- Evaluation-board access to a monolithic 18 MSPS converter (對比EVAL-AD7731EB)
- Integrated high-performance track-and-hold amplifier (對比EVAL-AD7732EBZ)
- Targeted 10-bit video-bandwidth use case (對比AD7732)
設計說明
Do not treat the AD773-EB evaluation board as a pin-compatible component that can be replaced with another converter. A true board-level replacement would need the same AD773 converter, schematic, connectors, test points, and software workflow. The verified cross-reference results did not identify any such alternative, so EVAL-AD7731EB and EVAL-AD7732EBZ should be treated as different evaluation platforms requiring their own documentation and setup.
Characterize the complete source path, not only the converter. The AD773 includes a high-performance track-and-hold amplifier, but source impedance, cable length, grounding, and input bandwidth can still limit useful bandwidth and settling. Keep analog and digital return paths separated where possible, use a stable reference arrangement, and verify the supported analog input range and source drive capability from the official AD773 datasheet and board user guide before interpreting conversion results.
Before applying power, identify every supply, reference, and ground connection from the official board documentation; those values are not present in the supplied verified snippets. Confirm supply sequencing and permissible input limits rather than inferring them from the AD773 product summary. Stable reference voltage is especially important because conversion codes are referenced against it, while clock and supply noise can appear as instability or code-width changes during an 18 MSPS evaluation.
合規資訊
No verified RoHS, REACH, halogen-free, or conflict-minerals declarations were supplied for AD773-EB. AEC-Q100 is not applicable because the product is an evaluation board rather than an automotive-qualified semiconductor.