AD9002AJ - 8-Bit 150 MSPS High-Speed ADC | Analog Devices
料号： AD9002AJ ✗ 停产AD9002AJ 概述
An ADC converts a continuously varying analog voltage into a digital value suitable for processing, storage, and transmission. The AD9002 belongs to the ADC hierarchy, which combines analog input conditioning and sampling with digital encoding. Its eight-bit resolution represents each sampled input with 256 quantization levels. This combination of resolution and sampling speed is especially useful when the system must capture rapidly changing signals while retaining a straightforward parallel digital interface.
The AD9002's key features include an encode rate of 150 MSPS, 8-bit resolution, 17 pF low input capacitance, and single-supply operation at 5.2 V. The parallel-comparator architecture allows comparator outputs to be decoded and presented through ECL-compatible output latches. This architecture is appropriate for high-throughput acquisition rather than low-rate instrumentation. The low input capacitance also reduces the capacitive loading presented to the signal source.
The AD9002AJ is fabricated using an advanced bipolar process, supporting the high operating speed required by radar, digital radio, laser and radar warning receivers, digital oscilloscopes, and automatic test equipment. Its wide large-signal analog input range provides design flexibility for high-speed waveform capture, although exact input, timing, and output limits must be confirmed in the manufacturer datasheet before final signal-chain design.
Typical applications include radar systems, digital oscilloscopes, automatic test equipment, laser and radar warning receivers, digital radio, and electronic instrumentation. In each case, the 150 MSPS encode rate supports rapid waveform capture, while the 8-bit output limits quantization to 256 codes. The ECL-compatible latches support connection to high-speed digital capture logic when system timing, termination, and voltage compatibility are designed together.
A critical layout consideration is preserving high-speed signal integrity. Place the converter close to its analog source, use short and properly terminated interconnects, and provide suitable bypass connections according to the manufacturer's application guidance. Do not infer input range, timing margins, output logic levels, or power requirements without checking the AD9002AJ datasheet and its recommended test circuit.
This product page combines the manufacturer's device description, verified package information, application guidance, and engineering-focused design notes. It also distinguishes verified technical facts from parameters that require confirmation with the manufacturer documentation, helping engineers evaluate the AD9002AJ for high-speed acquisition without overlooking interface and layout constraints.
直接替换替代料： AD9002AJ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： AD9002AJ （相同外形与封装尺寸） ——差异在于 Package, Resolution, Supply Voltage.
该产品暂无直接替换替代料。
请求替代料AD9002AJ 最大额定值与电气特性
| Product Type | 8-bit high-speed monolithic analog-to-digital converter |
| 分辨率 | 8 bits |
| Number of Quantization Levels | 256 levels |
| 采样率 | 150 MSPS |
| Maximum Stated Sampling Rate | In excess of 150 MSPS |
| Architecture | 256 parallel comparator stages with decoded outputs |
| Process Technology | Advanced bipolar process |
| Input Type | Analog voltage input |
| 输入电容 | 17 pF |
| 电源电压 | 5.2 V single supply |
| Output Interface | ECL-compatible output latches |
| 封装 | 28-pin JLCC |
| Package Type | JLCC ceramic package |
| MIL-STD-883 Availability | Compliant versions available |
AD9002AJ jlcc ceramic package 引脚配置指南
AD9002AJ（jlcc ceramic package 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： AD9002AJ.
请参阅 数据手册 以查看完整引脚配置。
典型应用
AD9002AJ 适用于 6 应用s: Radar Signal Acquisition, Digital Oscilloscope Front End, Automatic Test Equipment, Laser and Radar Warning Receivers, Digital Radio Receiver, Electronic Instrumentation.
Radar Signal Acquisition
The AD9002AJ suits radar acquisition blocks that must convert rapidly changing receiver or warning-signal waveforms at up to 150 MSPS. Its 8-bit resolution produces 256 quantization levels, providing a direct digital representation for detection, analysis, or display processing. The 17 pF input capacitance helps reduce loading on the preceding amplifier, while the advanced bipolar process supports the required conversion speed. In a practical radar receiver, place the ADC close to the signal-conditioning stage, maintain short analog interconnects, and verify the full-scale input range and timing margins in the manufacturer datasheet. Output-interface compatibility must also be confirmed against the FPGA or capture logic used for decoding.
Digital Oscilloscope Front End
The AD9002AJ can provide the high-speed sampling stage of a digital oscilloscope or equivalent waveform-acquisition instrument. A 150 MSPS encode rate supports rapid observation of transient signals, while 8-bit resolution provides 256 amplitude levels for display and analysis. Its 17 pF input capacitance is particularly relevant when the ADC follows a high-bandwidth attenuator or buffer. The ECL-compatible output latches require a carefully matched capture architecture, including appropriate routing, clocking, and termination. Designers should confirm input bandwidth, acquisition timing, output levels, and allowable loading against the manufacturer datasheet before finalizing the analog front end and digital capture interface.
Automatic Test Equipment
The AD9002AJ is applicable to high-speed automatic test equipment that digitizes repetitive or transient stimulus and compares the result with limits. Its 150 MSPS conversion rate provides high temporal density, while 8-bit resolution yields 256 possible codes for measurement. The low 17 pF input capacitance can simplify the interface between the device under test driver and the converter. For production test systems, route the analog signal with short traces, controlled impedance, and stable reference grounding, then use the manufacturer timing diagrams to establish capture margins. Power and signal sequencing should also account for the single 5.2 V supply and the activity generated by the ECL-compatible output latches.
Laser and Radar Warning Receivers
The AD9002AJ is identified for laser and radar warning receivers that need rapid conversion of detected analog signals. At 150 MSPS, it can sample high-bandwidth events while retaining an 8-bit digital representation with 256 quantization levels. The low 17 pF input capacitance helps preserve signal bandwidth when the converter follows detector or amplifier circuitry. A successful implementation must verify the receiver's required input range, sampling clock quality, and allowed output logic compatibility. Short analog routing, deliberate return paths, and controlled clock distribution are especially important because these systems combine sensitive inputs with fast digital outputs. Final timing and loading limits should be established from the AD9002 manufacturer documentation.
Digital Radio Receiver
The AD9002AJ can serve as a high-speed conversion element in digital radio equipment where received analog information must be captured at a high sample rate. The 150 MSPS encode rate supports demanding intermediate-frequency or wideband signal paths, while 8-bit resolution gives the downstream processor 256 amplitude codes. Its 17 pF input capacitance helps limit the load presented to the receiver's amplifier stage. The ECL-compatible latches provide a path to high-speed digital processing, but the designer must confirm voltage levels, timing, and termination for the selected FPGA or logic device. Shield high-speed clocks and route analog and digital return currents carefully to prevent conversion performance from being reduced by coupling.
Electronic Instrumentation
The AD9002AJ is suitable for electronic instrumentation that measures rapidly changing analog events and requires compact, parallel-output conversion. The combination of 150 MSPS sampling, 8-bit resolution, and a 28-pin JLCC package supports high-speed acquisition without moving to a more complex converter architecture. Its 17 pF input capacitance allows an op-amp, attenuator, or protected input network to drive the ADC with comparatively low loading. For laboratory and industrial instruments, validate gain distribution, input bandwidth, clock jitter, and trigger timing as a complete signal chain. Use the manufacturer's recommended bypass and test arrangement to establish repeatable performance before production conversion.
工程参考数据： AD9002AJ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 |
|---|---|
| Brand | Analog Devices |
| Package | 28-pin JLCC |
| Resolution | 8 bits |
| Sampling Rate | 150 MSPS |
| Input Capacitance | 17 pF |
| Supply Voltage | 5.2 V single supply |
| Architecture | 256 parallel comparator stages with decoded ECL-compatible output latches |
| Process Technology | Advanced bipolar process |
| Primary Applications | Radar, digital oscilloscopes, automatic test equipment, laser/radar warning receivers, and digital radio |
关键差异点
- High sampling speed with direct parallel conversion （对比 No verified drop-in alternative)
- Low analog input loading （对比 No verified drop-in alternative)
- Single-supply operation with ECL-compatible outputs （对比 No verified drop-in alternative)
设计说明
Place the AD9002AJ as close as practical to the analog driver and capture logic. Keep the analog input route short, avoid unnecessary stubs, and use a continuous return path beneath the input interconnect. The converter's 17 pF input capacitance should be included in the bandwidth and settling calculation for the source impedance. Confirm the package drawing and terminal assignments in the manufacturer datasheet before laying out the 28-pin JLCC footprint.
Treat the clock and ECL-compatible output paths as high-speed interfaces. Use short routes, deliberate reference planes, and termination appropriate to the receiving device rather than relying on trace length alone. Check timing margins against the receiver's setup and hold requirements. The 150 MSPS conversion rate makes clock quality and deterministic routing essential, particularly in radar, oscilloscope, and automatic test equipment applications.
Use the manufacturer's recommended single 5.2 V supply arrangement and bypass configuration. Place high-frequency decoupling close to the supply pins and provide additional bulk decoupling where the reference circuit requires it. Avoid routing supply current through the analog return path of the signal source. Because the output latches are ECL-compatible, verify their voltage levels and supply requirements against the downstream logic before assigning interface termination.
合规信息
MIL-STD-883-compliant versions are reported as available, but no complete RoHS, REACH, lead-free, halogen-free, or conflict-minerals declaration was established.
