AD9038JE - Dual 14-Bit 65 MSPS ADC | Analog Devices
MPN： AD9038JE ✗ 停產AD9038JE 概覽
An ADC is an analog-to-digital converter, a semiconductor in the ADC/DAC and data-converter hierarchy that samples an analog voltage and converts it into a digital code. A dual converter can process two analog inputs through two conversion channels, while its 14-bit resolution represents each sample with 16,384 discrete quantization levels. A 65 MSPS sampling rate allows each channel to acquire up to 65 million samples per second, making the device relevant to wideband signal acquisition, communications receivers, radar, test equipment, and precision industrial measurement.
The AD9038JE is identified as a low-power 3 V ADC. These characteristics suit compact systems in which a dual converter can reduce component count and board area compared with two separate single-channel ADC packages. The 68-terminal QCCN package also provides a substantial lead count for analog, digital, reference, clock, and supply connections. Because the supplied search excerpts do not expose the complete electrical tables or pin assignment, engineers should verify input range, reference voltage, clock architecture, digital interface, power consumption, and output coding against the official manufacturer documentation before layout or firmware release.
Typical implementations place the two ADC channels around a shared clock and data-capture system. Communications equipment can use the converters for intermediate-frequency or baseband sampling, while instrumentation systems can apply them to dual-axis or multichannel sensor signals. The converter may also support digital oscilloscope, spectrum-analysis, and industrial control equipment when its sampling architecture and timing requirements match the application.
PCB design should treat analog inputs, reference connections, clocks, supplies, and digital outputs as separate domains. Keep input and reference traces short, route clock signals away from sensitive analog paths, provide local high-frequency bypass capacitance, and return digital currents through a deliberate ground path. Differential clock quality is particularly important because timing jitter can limit the effective noise performance of a high-speed converter even when nominal resolution is adequate.
This page consolidates the verified distributor specifications, sourcing links, package information, and application guidance for AD9038JE. Detailed values absent from the supplied excerpts are explicitly identified rather than estimated, allowing engineers to distinguish confirmed product attributes from information that must be confirmed in the manufacturer datasheet before design-in.
直接替換替代品，適用於 AD9038JE — 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AD9038JE 最大額定值與電氣特性
| Product Type | Dual analog-to-digital converter |
| 解析度 | 14 bit |
| Maximum Sampling Rate | 65 MSPS |
| Channel Count | 2 channels |
| 供應電壓 | 3 V |
| Power Class | Low power |
| Temperature Grade | Commercial |
| Package Code | QCCN |
| Package Shape | Square |
| Terminal Form | No lead |
| Number of Terminals | 68 terminals |
| 安裝類型 | Surface mount |
AD9038JE square 腳位配置指南
AD9038JE（square 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： AD9038JE.
請參閱 資料表 以查看完整腳位配置。
典型應用
AD9038JE 適用於 6 應用s: Communications Receiver Signal Acquisition, Digital Oscilloscope Front End, Industrial Signal Measurement, Spectrum Analysis and Signal Monitoring, Radar and Test Equipment, Data Acquisition and Control Systems.
Communications Receiver Signal Acquisition
The AD9038JE is suitable for communications receivers that need two synchronized high-speed conversion channels. Its verified 14-bit resolution and 65 MSPS maximum sampling rate provide adequate conversion density for intermediate-frequency, baseband, or other wideband acquisition stages when the analog bandwidth and signal frequency are supported. The dual architecture can also reduce board area by combining paired conversion paths in one 68-terminal QCCN device. The 3 V low-power supply arrangement is valuable in compact radio and communication equipment where power, component count, and thermal performance constrain the design. Before committing, engineers should confirm input range, clock-jitter tolerance, reference requirements, digital output format, and whether simultaneous dual-channel operation is available from the complete datasheet.
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Digital Oscilloscope Front End
The AD9038JE can serve as the high-speed conversion element in a dual-channel digital oscilloscope or laboratory acquisition instrument. Its two 14-bit channels allow related waveforms to be captured through matched signal paths, while the 65 MSPS sampling rate supports sampling of substantially faster signals than a low-rate general-purpose ADC. A practical implementation would include analog attenuation, gain control, anti-alias filtering, clock generation, and an FPGA or processor-based capture path. The converter's performance in this application depends on analog input bandwidth, aperture jitter, signal-to-noise ratio, spurious-free dynamic range, and output latency, none of which can be confirmed from the supplied excerpts. Package layout and thermal design also require close attention at the device's maximum sampling rate.
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Industrial Signal Measurement
The AD9038JE is applicable to industrial measurement systems that acquire two related analog signals at a common sample rate. Its dual 14-bit architecture can support paired sensor outputs, vibration channels, machine-tool feedback, or process-control signals, while 65 MSPS allows higher bandwidth than many general-purpose measurement converters. Input conditioning remains essential: each channel may require amplification, level shifting, protection, and anti-alias filtering before reaching the ADC. The 3 V low-power device can simplify power architecture in distributed industrial electronics, provided the system's total analog and digital load is supported. Because the verified excerpts do not specify input common-mode range, isolated-input requirements, sampling noise, or channel synchronization, a laboratory evaluation should confirm signal integrity and timing performance under realistic operating conditions.
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Spectrum Analysis and Signal Monitoring
The AD9038JE can contribute to spectrum-analysis, frequency-analysis, and wideband signal-monitoring equipment because its 65 MSPS conversion rate supports high-speed sampling and its 14-bit resolution provides 16,384 possible digital codes per sample. Such systems use the converter output for filtering, decimation, FFT processing, and spectral detection. Practical performance depends strongly on analog front-end bandwidth, converter noise and nonlinearity, reference stability, and clock jitter; nominal resolution alone does not establish spectral accuracy. The dual-channel arrangement may support simultaneous comparison, multi-frequency observation, or differential and auxiliary monitoring. Engineers should verify the exact output coding and supported clocking scheme, then budget analog gain, filtering, decimation, and FPGA or DSP resources according to the required signal bandwidth.
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Radar and Test Equipment
The AD9038JE is relevant to radar, avionics-adjacent test equipment, and specialized wideband measurement systems where dual fast sampling can simplify the acquisition architecture. A 65 MSPS dual 14-bit converter can capture IF or complex-signal data for downstream demodulation, analysis, or recording, provided the analog front end presents signals within the converter's supported range. Radar and test applications are especially sensitive to clock jitter, aperture delay, gain error, and spur performance, so these characteristics must be verified in the official documentation rather than inferred from resolution and sample rate. The 68-terminal QCCN package offers many connections but requires careful thermal and return-path planning. A successful design should use controlled clock distribution, stable references, matched analog channels, and an acquisition processor selected for the converter's output format.
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Data Acquisition and Control Systems
The AD9038JE can be evaluated for data-acquisition and embedded control systems that need two faster analog channels than a general-purpose microcontroller ADC provides. Its 14-bit resolution improves nominal quantization granularity, and the 65 MSPS rate creates a high-rate data path requiring dedicated buffering and processing. In a practical system, the ADC may feed an FPGA that performs filtering, triggering, decimation, or format conversion before transferring results to a processor or communications interface. The low-power 3 V characteristic may help system-level power budgeting, but total board dissipation and required cooling must be evaluated under maximum-rate operation. Because the supplied records do not confirm output interface, power consumption, acquisition latency, or synchronization behavior, designers should benchmark the complete signal chain before selecting it for a production control platform.
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推薦產品摘要
工程參考資料，適用於 AD9038JE — 比較、設計指引及合規資訊。
選型指南
設計說明
Keep the AD9038JE analog inputs, reference network, clock inputs, and digital outputs on clearly separated PCB domains. Route clocks as short, controlled-impedance paths away from sensitive input and reference traces, and provide a direct return path beneath each high-speed interface. The verified 68-terminal QCCN footprint has no corresponding canonical package-diagram key, so engineers should use the official land pattern rather than deriving placement from a generic square package.
Treat clock quality as a first-order system requirement for a 65 MSPS converter. Use a low-jitter source, minimize clock-divider and fan-out delay variation, and avoid splitting the clock path through uncontrolled PCB stubs. Verify interface timing against the exact AD9038JE output interface and operating clock because the supplied excerpts do not expose timing specifications or digital logic levels.
Follow the manufacturer's recommended analog and digital supply bypass strategy once the complete electrical tables are available. Place low-ESR, high-frequency bypass capacitors close to the relevant supply and ground pins, and preserve the distinction between analog and digital current paths. The verified 3 V low-power description does not provide total supply current, so no power-dissipation or thermal-rise estimate can be calculated without inventing values.
Do not substitute another AD9038 ordering code based only on the family name. Confirm the JE package drawing, 68-terminal pinout, commercial temperature grade, analog input range, clocking, reference, and digital interface before replacing the installed part. Also avoid interpreting the 65 MSPS sampling rate as guaranteed usable analog bandwidth; front-end bandwidth, anti-alias filtering, jitter, and dynamic specifications must be checked independently.
合規資訊
The supplied product excerpts identify a commercial-grade AD9038JE but do not provide verified RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. AEC-Q100 is marked not_applicable because the verified temperature grade is commercial, not automotive.
