AD9002AD - 8-Bit 150 MSPS High-Speed ADC | Analog Devices
料号： AD9002AD ✓ 量产中AD9002AD 概述
A high-speed ADC is a mixed-signal semiconductor that samples an analog voltage and converts it into a digital representation. In the broader hierarchy, the AD9002 belongs to data converters, then ADC/DAC devices, and ultimately integrated circuits. Its parallel architecture samples the analog input continuously and presents all 8 bits at once, reducing the serial interface overhead associated with lower-speed converters.
The AD9002 features an 8-bit resolution, a 150 MSPS conversion rate, and 17 pF low input capacitance. These characteristics are important in imaging and instrumentation systems because the low capacitance reduces the loading placed on the signal source. The -5.2 V supply, ECL-compatible outputs, and 28-pin CDIP package also distinguish it from modern low-voltage, serial-interface ADC families.
Internally, the converter uses 256 parallel comparator stages. Their outputs are decoded to drive ECL-compatible output latches, implementing a parallel flash-conversion architecture. The Analog Devices product page describes the AD9002 as being fabricated in an advanced bipolar process, a process choice suited to the high-speed operation and ECL-compatible interface of this converter family.
Typical uses include radar systems, digital oscilloscopes and automatic test equipment, laser and radar warning receivers, and digital radio. In each case, the converter can digitize a high-frequency analog waveform into an 8-bit code while allowing the downstream digital system to perform filtering, triggering, analysis, or display processing.
The main design consideration is interface and signal-chain implementation. Because the device uses ECL-compatible outputs and a -5.2 V supply, the receiving logic must use compatible termination and level arrangements. Board layout should minimize analog trace length, preserve controlled impedance, and separate converter inputs from digital output return currents to reduce data-dependent errors.
This product page combines the AD9002AD electrical characteristics, package information, application guidance, and verified drop-in family alternatives with practical design considerations for engineers evaluating high-speed parallel data capture.
直接替换替代料： AD9002AD ——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： AD9002AD （相同外形与封装尺寸） ——差异在于 Package, Resolution, Supply Voltage.
AD9002AE
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD9002AD 最大额定值与电气特性
| Converter Type | Flash-type analog-to-digital converter |
| 分辨率 | 8 bit |
| 采样率 | 150 MSPS |
| 输入电容 | 17 pF |
| 电源电压 | -5.2 V |
| Supply Configuration | Single supply |
| Digital Output Interface | 8-bit parallel ECL-compatible |
| Internal Architecture | 256 parallel comparator stages |
| Process Technology | Advanced bipolar process |
| 封装 | 28-pin CDIP |
| 安装类型 | Through-hole |
| Packaging | Tube |
AD9002AD 28-pin cdip 引脚配置指南
AD9002AD（28-pin cdip 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： AD9002AD.
请参阅 数据手册 以查看完整引脚配置。
典型应用
AD9002AD 适用于 6 应用s: Radar Signal Acquisition, Digital Oscilloscope Front End, Automatic Test Equipment, Digital Radio Receiver, Laser and Radar Warning Receivers, High-Speed Data Capture Module.
Radar Signal Acquisition
The AD9002AD is suitable for radar signal acquisition because its 150 MSPS flash-conversion rate supports rapid conversion of high-frequency analog returns, while the 8-bit output provides a compact digital representation. Its 17 pF input capacitance helps limit loading on the receiver and analog front end. The radar designer must provide -5.2 V supply, ECL-compatible termination, controlled-impedance routing, and a digital acquisition system able to accept the converter's parallel output.
Digital Oscilloscope Front End
The AD9002AD can form the conversion stage of a high-speed digital oscilloscope or equivalent waveform-capture instrument. Its 150 MSPS sampling rate and 8-bit resolution provide enough temporal resolution to observe rapidly changing signals, while 17 pF input capacitance eases interface with the analog amplifier and attenuator network. System design should place the converter close to the analog front end, use short controlled-impedance traces, and provide compatible ECL-level receiving logic.
Automatic Test Equipment
The AD9002AD is applicable to automatic test equipment that measures fast analog nodes and transfers the results into a digital acquisition or comparison system. The 8-bit flash ADC converts at 150 MSPS, allowing compact instruments to evaluate transient signals without the serial-output bottleneck of many lower-speed converters. Integration requires careful grounding between the analog input network and ECL-compatible output receivers, plus local -5.2 V regulation and a stable clock and sampling arrangement.
Digital Radio Receiver
The AD9002AD fits digital-radio receiver front ends that require rapid conversion of a limited-bandwidth signal into an 8-bit digital code. Its 150 MSPS rate provides substantial timing margin relative to many communications channels, and the parallel ECL-compatible interface supports direct connection to high-speed logic or a subsequent parallel-to-serial conversion stage. The receiver must account for ECL supply requirements, signal termination, clock quality, and layout isolation between the analog input and high-speed digital outputs.
Laser and Radar Warning Receivers
The AD9002AD is appropriate for laser and radar warning receiver signal paths requiring a high-speed, parallel ADC. Its 150 MSPS sampling capability and 8-bit resolution allow receiver waveforms to be digitized for detection, classification, or recording, while the 17 pF input capacitance helps preserve the behavior of the preceding amplifier stage. Designers should verify dynamic range, input range, and conversion timing against the receiver's operating conditions before finalizing the analog interface.
High-Speed Data Capture Module
The AD9002AD can serve as the ADC in a dedicated high-speed data-capture module feeding an FPGA, DSP, or memory subsystem. Eight parallel ECL-compatible outputs provide the 8-bit sample to downstream digital logic, while the 150 MSPS conversion rate supports sustained capture of rapidly varying waveforms. The module should use short matched routes, solid return-plane management, separate analog and digital supply paths, and carefully controlled clock distribution to preserve data integrity across the acquisition chain.
工程参考数据： AD9002AD ——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 | AD9002AE | AD9002AJ |
|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices |
| Package | 28-pin CDIP | 28-pin CDIP | 28-pin CDIP |
| Converter Type | Flash-type ADC | Flash-type ADC | Flash-type ADC |
| Resolution | 8 bit | 8 bit | 8 bit |
| Sampling Rate | 150 MSPS | 150 MSPS | 150 MSPS |
| Input Capacitance | 17 pF | 17 pF | 17 pF |
| Supply Voltage | -5.2 V | -5.2 V | -5.2 V |
| Digital Output Interface | 8-bit parallel ECL-compatible | 8-bit parallel ECL-compatible | 8-bit parallel ECL-compatible |
| Internal Comparator Stages | 256 parallel comparator stages | 256 parallel comparator stages | 256 parallel comparator stages |
| Process Technology | Advanced bipolar process | Advanced bipolar process | Advanced bipolar process |
关键差异点
- Parallel flash conversion at 150 MSPS （对比 AD9002AE)
- Low 17 pF analog input capacitance （对比 AD9002AJ)
- ECL-compatible parallel output architecture （对比 AD9002AE)
设计说明
Route the analog input and clock signals as short, controlled-impedance traces, and place the converter close to the driving amplifier. The 17 pF input capacitance is favorable for source loading, but long or poorly terminated traces can still create timing and amplitude errors at 150 MSPS. Keep the digital ECL-compatible outputs away from the sensitive input node and use a continuous ground plane under the converter where the package and board construction permit.
Design a low-noise -5.2 V supply path for the AD9002AD and the ECL-compatible receiving circuitry. Because the converter and output latches operate with negative supply voltage, check every ground reference and termination arrangement in the complete acquisition chain. Local bypass capacitors should be placed at the supply and ground pins according to the manufacturer reference configuration, with additional filtering reserved for power sources that also feed switching circuitry.
Do not treat an AD9002 family ordering suffix as automatically interchangeable without checking temperature range, qualification, package construction, and lead timing. The AD9002AE and AD9002AJ candidates preserve the 8-bit, 150 MSPS core function and CDIP format, but a production substitution also requires confirmation of suffix-specific operating limits and reliability requirements. Preserve the existing pin assignment and acquisition timing when evaluating either family alternative.
Treat the eight parallel output lines as a synchronous high-speed bus. Their data relationship must remain stable through the receiving latches, so use matched routing where practical and avoid unnecessary stubs or test-probe discontinuities. Keep clock distribution symmetrical and isolate the clock source from the analog input path. Validate timing and signal integrity at the intended operating rate because a converter's nominal sampling rate alone does not guarantee acceptable system margins.
合规信息
Technical descriptions state that MIL-STD-883-compliant versions are available, but the qualification status of the exact AD9002AD ordering suffix is not established. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status are unknown.
