AD9026BD - 12-Bit 65 MSPS Dual ADC | Analog Devices
MPN： AD9026BD ✓ 啟用中AD9026BD 概覽
An ADC is a data-acquisition IC that converts an analog voltage into a digital code. The AD9026BD belongs to the ADC hierarchy that includes flash and pipeline conversion ICs, data converters, signal-chain semiconductors, and integrated circuits. Its dual-channel architecture reduces the number of converters required when two related inputs must be sampled at the same time, while its parallel interface supports high-rate transfer into FPGA, DSP, or data-acquisition logic.
The principal operating characteristics include dual-channel conversion, 12-bit resolution, a 65 MSPS maximum sampling rate, and operation from a 3 V supply. The 64-pin QFN package supports compact surface-mount layouts, and the converter's maximum linearity error is listed as 0.0732%. Its supply current is listed as 248 mA, making power distribution and thermal design important in dense acquisition systems.
The AD9026BD uses a high-speed conversion architecture intended to preserve signal fidelity as input bandwidth and sample rate increase. Because parallel outputs can toggle rapidly, controlled clock distribution and short PCB traces are important. Designers should also treat analog and digital return paths carefully to prevent converter activity and coupling from degrading the measured input signal.
Typical uses include dual-channel communications receivers, digital oscilloscope and spectrum-analysis front ends, industrial data-acquisition equipment, medical instrumentation, ultrasound channels, radar signal capture, and FPGA-based signal processing. The dual converter is particularly useful when two inputs require synchronized acquisition or when a redundant or differential measurement must be captured simultaneously.
For a new design, place the device close to the clock source and receiving FPGA or DSP, provide stable analog and digital supply rails, and follow the Analog Devices evaluation-board layout for decoupling and high-speed routing. Confirm the required input range, clock amplitude, output coding, and timing margins before releasing production artwork. Use the manufacturer datasheet pin-description table when assigning tracks and checking exposed-pad connections.
This page combines the AD9026BD specifications, verified sourcing information, practical acquisition-design guidance, and a drop-in-focused comparison structure to help engineers evaluate the converter quickly and design around its real board-level constraints.
直接替換替代品，適用於 AD9026BD — 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。
AD9026BCPZ
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
AD9026BD 最大額定值與電氣特性
| Converter Type | Dual-channel ADC |
| 解析度 | 12 bits |
| Maximum Sampling Rate | 65 MSPS |
| 供應電壓 | 3 V |
| Maximum Linearity Error | 0.0732% |
| 供應電流 | 248 mA |
| Number of Channels | 2 |
| 封裝 | 64-pin QFN |
| 腳位數 | 64 pins |
| 安裝類型 | Surface mount |
| 工作溫度範圍 | -40°C to +85°C |
| Conversion Architecture | Flash-method ADC |
| RoHS Compliance | unknown |
AD9026BD 64-pin qfn 腳位配置指南
AD9026BD（64-pin qfn 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： AD9026BD.
請參閱 資料表 以查看完整腳位配置。
典型應用
AD9026BD 適用於 6 應用s: Communications Receiver Front End, Digital Oscilloscope Front End, Industrial Data-Acquisition System, Medical Signal Acquisition, Ultrasound Receive Channel, Radar and Spectrum Capture.
Communications Receiver Front End
The AD9026BD fits communications receiver front ends that require two related analog channels to be converted at up to 65 MSPS. Its dual 12-bit architecture can capture intermediate-frequency or baseband signals concurrently while the 248 mA listed supply current places a clear demand on the 3 V power network. Place the converter close to the receiver signal chain and FPGA acquisition logic, then route the high-rate parallel outputs over short, impedance-controlled traces. The principal trade-off is that the 65 MSPS rate can exceed the bandwidth required by the actual receiver, making a lower-power converter preferable when the system does not need that throughput.
推薦
Digital Oscilloscope Front End
The AD9026BD is appropriate for a dual-channel digital oscilloscope front end requiring 12-bit samples at rates up to 65 MSPS. Two converters can acquire a measured signal and a reference or comparison channel without duplicating an entire 64-pin QFN device. Designers should use controlled-impedance analog and digital routing, distribute the sampling clock with low skew, and decouple the 3 V supply locally because the listed current is 248 mA. The main trade-off is that a 65 MSPS ADC does not itself provide true multi-gigahertz bandwidth; front-end attenuation, sampling bandwidth, memory architecture, and display triggering must be evaluated separately.
推薦
Industrial Data-Acquisition System
The AD9026BD can serve as the simultaneous converter in an industrial data-acquisition module that compares sensor, feedback, or diagnostic signals. Its dual-channel 12-bit architecture provides synchronized measurement capability at rates up to 65 MSPS, while the 3 V operation and 64-pin QFN package support compact board construction. Use local supply bypassing, continuous high-speed return paths, and careful separation between analog inputs and digital outputs to prevent switching coupling. For slow-changing process sensors, a lower-rate and lower-power ADC may provide better system efficiency unless transient diagnosis and synchronized sampling justify the higher acquisition performance.
推薦
Medical Signal Acquisition
The AD9026BD may support paired medical signal-acquisition stages where two channels require consistent 12-bit conversion at up to 65 MSPS. Potential uses include synchronized sensing and monitoring front ends, although the final design must verify signal bandwidth, isolation, safety architecture, and applicable medical requirements. Place analog routing away from the parallel digital outputs, use a low-jitter sampling clock, and follow the Analog Devices reference layout and power-sequencing guidance. The converter's 248 mA supply current also requires careful rail budgeting when several medical-instrument channels operate continuously.
推薦
Ultrasound Receive Channel
The AD9026BD is a candidate for dual ultrasound receive channels that need 12-bit data at a common sample rate up to 65 MSPS. Synchronized dual conversion can support phased-array beamforming front ends when channel timing, latency, and clock distribution meet the system architecture. The design should isolate each analog input, minimize loop area, and use controlled clock routing to avoid timing variation across channels. A 65 MSPS converter is useful for high-frequency echo signals, but amplifier bandwidth, anti-alias filtering, channel matching, and ultrasound-specific timing remain additional system requirements.
推薦
Radar and Spectrum Capture
The AD9026BD can contribute to radar, spectrum-analysis, or IF-capture systems where two 12-bit channels need rapid simultaneous digitization. A 65 MSPS maximum rate supports substantial bandwidth, while the parallel digital output can feed FPGA or DSP processing after appropriate clocking and timing verification. Care is required because high-rate parallel outputs, clock supply noise, and switching currents can couple into sensitive analog stages. Use a low-jitter clock, solid reference-plane design, and short output routes; also confirm that the converter's noise, linearity, input range, and latency satisfy the complete receiver specification.
推薦
推薦產品摘要
工程參考資料，適用於 AD9026BD — 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 | AD9026BCPZ |
|---|---|---|
| Brand | Analog Devices | Analog Devices |
| Package | 64-pin QFN | 64-pin QFN |
| Channel Count | 2 channels | 2 channels |
| Resolution | 12 bits | 12 bits |
| Maximum Sampling Rate | 65 MSPS | 65 MSPS |
| Supply Voltage | 3 V | 3 V |
| Conversion Architecture | Flash-method ADC | Flash-method ADC |
主要差異化特點
- Dual high-speed conversion in one device (對比AD9026BCPZ)
- Integrated dual-channel acquisition (對比AD9026BCPZ)
- Parallel high-rate acquisition capability (對比AD9026BCPZ)
設計說明
Place the AD9026BD close to its clock source and FPGA or DSP receiver, and keep the parallel output routes short. Use a continuous reference plane beneath high-speed traces, avoid stubs, and route clock and data as a length-controlled group. A 65 MSPS parallel converter can produce rapid edge activity, so the PCB stack-up and trace geometry should be established during schematic capture rather than adjusted after layout.
Design the 3 V rail for the listed 248 mA supply current plus converter and FPGA tolerances. Place local high-frequency decoupling at the supply pins using the values and layout shown in the manufacturer reference design. Use separate return paths for analog and digital currents, and verify the rail at the converter under simultaneous 65 MSPS operation because a quiet supply is essential for maintaining conversion performance.
Do not select a replacement based only on sample rate, resolution, or package dimensions. Confirm pin assignments, clock polarity and jitter limits, input range, output coding, latency, logic levels, exposed-pad connection, and power sequencing. The search results contain conflicting third-party descriptions, so the Analog Devices datasheet and package drawing should govern the design and any production substitution review.
合規資訊
No explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals statement appears in the manufacturer product-page information or component listings. AEC-Q100 qualification is not applicable to the standard industrial-temperature AD9026BD ordering variant.
