AD9002AD - 8-Bit 150 MSPS High-Speed ADC | Analog Devices
MPN: AD9002AD ✓ Hoạt độngAD9002AD Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho AD9002AD — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với AD9002AD (cùng hình factor và footprint) — khác nhau ở Package, Resolution, Supply Voltage.
AD9002AE
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
AD9002AJ
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →AD9002AD Tỷ lệ tối đa & tính chất điện
| Converter Type | Flash-type analog-to-digital converter |
| Độ phân giải | 8 bit |
| Tỷ lệ lấy mẫu | 150 MSPS |
| Cung cấp电容 | 17 pF |
| Điện áp cung cấp | -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 |
| Hộp | 28-pin CDIP |
| Kiểu lắp đặt | Through-hole |
| Packaging | Tube |
Hướng dẫn cấu hình chân AD9002AD 28-pin cdip
Cấu hình chân cho AD9002AD (28-pin cdip gói). Thành phần số hiệu này có chân đầu vào, đầu ra và nguồn cung cấp. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết cấu hình chân bù, bù trừ và chân kích hoạt. Hoàn hảo cho điều kiện tín hiệu và mạch khuếch đại.
Không có dữ liệu chân cụ thể sẵn có cho AD9002AD.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
AD9002AD phù hợp cho 6 Áp dụngs: 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.
Dữ liệu tham khảo kỹ thuật cho AD9002AD — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Parallel flash conversion at 150 MSPS (vsAD9002AE)
- Low 17 pF analog input capacitance (vsAD9002AJ)
- ECL-compatible parallel output architecture (vsAD9002AE)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
