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Analog Devices Inc. AD12401-400KWS
- Part No.:
- AD12401-400KWS
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- Module
- Datasheet:
-
AD12401-400KWS.pdf
- Description:
- IC ADC 12BIT 400MSPS 120-PIN MOD
- Quantity:
- Payment:
- Shipping:
Inventory:1,982
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Product details
Overview
AD12401-400KWS from Analog Devices is a 12-bit, 400 MSPS analog-to-digital converter with transformer-coupled input, LVDS outputs, and proprietary Advanced Filter Bank (AFB™) digital post-processing for enhanced SFDR. It delivers 63 dBFS SNR at 128 MHz input and operates across 0°C to 60°C case temperature in wideband carrier systems such as radar receivers and phased array antennas.
For engineers reviewing the AD12401-400KWS datasheet, AD12401-400KWS pinout, AD12401-400KWS application, or AD12401-400KWS equivalent, this page provides verified technical context, real-world timing and dynamic performance values, package-integrated thermal design guidance, and validated alternative options for high-speed wideband digitization.
Technical Context
The AD12401-400KWS implements time-interleaved dual-channel architecture with on-module AFB™ digital post-processing to suppress image spurs and improve SFDR beyond conventional ADC limits. Its analog input supports 10–175 MHz bandwidth with 1.6 Vp-p full-scale range and 1:1.5 VSWR up to 175 MHz.
Digital interface uses LVDS output levels (247–454 mV differential swing), 74-cycle pipeline latency, and flexible ENCODE signaling-accepting either single-ended or differential clock inputs. The device requires three independent supplies: 3.7 V (analog), 3.3 V (digital I/O), and 1.5 V (core logic).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit-supports precise amplitude quantization for wide dynamic range signal capture. |
| Max Sample Rate | 400 MSPS-enables Nyquist sampling of signals up to 200 MHz without aliasing. |
| SNR @ 128 MHz | 63 dBFS-ensures >10-bit effective resolution for high-fidelity RF digitization. |
| SFDR @ 128 MHz | 70 dBFS-suppresses spurious content critical for multi-tone and radar pulse analysis. |
| Analog Input Bandwidth | 480 MHz-maintains flat frequency response through second Nyquist zone. |
| Aperture Jitter | 0.4 ps rms-limits sampling uncertainty to preserve SNR at high IF frequencies. |
| Power Dissipation | 6.8 W max-requires active thermal management due to module-level integration. |
| Pipeline Latency | 74 clock cycles + tPD-dictates minimum buffer depth for real-time data alignment. |
Pinout & Package
The AD12401-400KWS is housed in an enclosed 2.9" × 2.6" × 0.6" module with Samtec QTE-060-01-L-D-A-K-TR edge-mount connector and integrated ground plane sections (AGND/DGND). Thermal design assumes case temperature operation from 0°C to 60°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN | Analog Input | Transformer-coupled, ac-coupled 50 Ω port; accepts 1.6 Vp-p full-scale signal. |
| ENC / ENC | Encode Clock Input | Differential PECL-compatible input; supports single-ended 2.0 Vp-p sine wave zero-crossing triggering. |
| DA0–DA11 / DB0–DB11 | LVDS Data Outputs | True/complement 12-bit parallel outputs per channel (A/B); twos-complement coding. |
| DRA / DRB | Data Ready Strobes | LVDS strobes synchronized to output data; indicate valid sample availability per channel. |
| OROUT / OROUT | Overrange Indicator | LVDS pair flags analog input exceeding ±1.6 Vp-p; used for AGC or clipping detection. |
| H/L_GAIN | Gain Select Control | Grounded for low-gain KWS grade (−12 dB gain); pulled to 3.3 V for high-gain JWS grade. |
| DR_EN | Data Ready Enable | LVTTL input; gates DRA/DRB assertion to synchronize external memory capture. |
| RESET | Asynchronous Reset | LVTTL active-low; 200 ns minimum pulse width; resets internal state and postprocessing logic. |
Key Features
| Feature | Design Value |
|---|---|
| Advanced Filter Bank (AFB™) post-processing | Proprietary digital correction from V Corp Technologies improves SFDR by suppressing image spurs inherent to time-interleaved architecture. |
| Wideband ac-coupled analog input | 10–175 MHz flat response with 0.5 dB ripple and 1:1.5 VSWR enables direct RF sampling without external matching networks. |
| Flexible ENCODE interface | Accepts differential PECL or single-ended 2.0 Vp-p sine wave; eliminates need for external clock conditioning circuitry. |
| Twos-complement LVDS output format | Standardized 12-bit parallel LVDS outputs simplify FPGA interface design and reduce timing closure complexity. |
| Gain-selectable architecture | Hardware-configurable low-gain (KWS) or high-gain (JWS) mode via H/L_GAIN pin-no firmware change required. |
Applications
| Radar Subsystem Digitization | Phased Array Antenna Receiver |
|---|---|
Use Scenario: High-speed sampling of pulsed L-band or S-band radar returns with microsecond pulse widths and wide instantaneous bandwidth. IC Role / Device Role / Timing Role: Primary ADC front-end capturing baseband or IF signals at 400 MSPS with <0.4 ps aperture jitter to preserve pulse fidelity. Use Value: 70 dBFS SFDR ensures clean separation of weak targets from strong clutter and jamming signals in real-time processing pipelines. |
Use Scenario: Simultaneous digitization of multiple antenna element channels for beamforming and direction-of-arrival estimation. IC Role / Device Role / Timing Role: Dual-channel (A/B) time-interleaved ADC providing phase-coherent samples across distributed receiver paths. Use Value: 74-cycle deterministic latency enables precise inter-channel time alignment in FPGA-based beamformer logic. |
| Multichannel Communications Test Equipment | Secure Wideband Carrier System |
Use Scenario: Real-time spectrum monitoring and modulation analysis of broadband encrypted waveforms (e.g., MIL-STD-188-110D, STANAG 4586). IC Role / Device Role / Timing Role: Wideband digitizer capturing >100 MHz instantaneous bandwidth for offline demodulation and crypto-analysis. Use Value: 63 dBFS SNR at 128 MHz supports accurate EVM measurement of 256-QAM signals under noise-limited conditions. |
Use Scenario: Direct IF sampling in military SATCOM terminals operating in C/X/Ku bands with adaptive waveform agility. IC Role / Device Role / Timing Role: High-dynamic-range ADC enabling simultaneous reception of narrowband command links and wideband data channels. Use Value: 480 MHz analog input bandwidth allows second-Nyquist zone sampling of 1.2 GHz IF signals without image rejection filters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9625BCPZ-250 | 12-bit, 250 MSPS; no integrated AFB™; lower power (2.8 W); BGA package. | Lower sample rate limits instantaneous bandwidth to 125 MHz; lacks module-level thermal management. | Select when system bandwidth ≤125 MHz and board space constraints prohibit module footprint. |
| ADC12D1800RFIRGCT | 12-bit, 1.8 GSPS dual-channel; no AFB™; higher jitter (0.7 ps); requires external reference. | Higher speed enables direct RF sampling but demands tighter layout control and adds reference design complexity. | Select when Nyquist zone extends beyond 900 MHz and system can accommodate higher jitter-induced SNR degradation. |
Compared with AD12401-400KWS, AD9625BCPZ-250 trades 150 MSPS speed and AFB™ enhancement for reduced power and smaller footprint, while ADC12D1800RFIRGCT offers 4.5× higher sample rate at the cost of increased jitter sensitivity and external component dependencies.
Availability
AD12401-400KWS is available at Aetrix Electronics and suitable for radar subsystems, phased array antennas, multichannel test equipment, secure communications terminals, and wideband carrier systems requiring stable component supply over extended production lifecycles.
Supply support for AD12401-400KWS includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD12401 product line delivers module-integrated, wideband ADC solutions optimized for defense electronics, instrumentation, and satellite communications where signal integrity, thermal stability, and deterministic latency are mission-critical.
FAQ
What is the guaranteed maximum sample rate for the AD12401-400KWS?
The AD12401-400KWS is guaranteed to operate at 400 MSPS ±1% (396–404 MSPS) with full AC specifications met. Performance at lower encode rates (e.g., 360 MSPS or 326 MSPS) is documented but not guaranteed unless explicitly tested and qualified for that specific configuration. The AD12401-400KWS achieves its rated dynamic performance only when operated within this specified encode window.
Does the AD12401-400KWS require an external voltage reference?
No, the AD12401-400KWS does not require an external voltage reference. It integrates all necessary reference circuitry internally and is fully functional with only the three supplied voltages: 3.7 V (VA), 3.3 V (VC), and 1.5 V (VD). This simplifies system design and eliminates reference-related drift or noise coupling concerns in the AD12401-400KWS signal chain.
How is gain selection implemented on the AD12401-400KWS?
Gain selection on the AD12401-400KWS is controlled by the H/L_GAIN pin (Pin 103). Grounding this pin configures the device for low-gain mode (KWS grade), while pulling it to 3.3 V selects high-gain mode (JWS grade). This hardware-selectable feature allows system-level optimization of input dynamic range without firmware changes or reconfiguration of the AD12401-400KWS.
What is the purpose of the DR_EN pin on the AD12401-400KWS?
The DR_EN (Data Ready Enable) pin on the AD12401-400KWS is an LVTTL input used to gate the assertion of DRA and DRB strobes, synchronizing external memory capture with valid data windows. When DR_EN is low, DRA/DRB are disabled; they resume on the next valid cycle after DR_EN returns high. This enables precise buffering control in FPGA-based acquisition systems using the AD12401-400KWS.
What thermal considerations apply to the AD12401-400KWS module?
The AD12401-400KWS is rated for 0°C to 60°C case temperature operation and dissipates up to 6.8 W. Its 2.9" × 2.6" × 0.6" enclosed module includes integrated thermal vias and ground plane sections (AGND/DGND) to facilitate heat transfer to the host PCB. Mounting must follow Analog Devices' Package Integrity/Mounting Guidelines to maintain thermal resistance and avoid derating of the AD12401-400KWS performance.
AD12401-400KWS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 400M
- Number of Inputs:
- -
- Input Type:
- -
- Data Interface:
- Parallel
- Configuration:
- -
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 2
- Architecture:
- -
- Reference Type:
- -
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- Features:
- -
- Operating Temperature:
- 0°C ~ 60°C
- Supplier Device Package:
- -
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD12401-400KWS FAQ
1.How can I place an order for AD12401-400KWS through Aetrix?
Please submit a Request for Quotation (RFQ) for AD12401-400KWS on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD12401-400KWS reliable?
The price and inventory of AD12401-400KWS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD12401-400KWS is usually 5 days.
3.What payment methods are accepted for AD12401-400KWS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD12401-400KWS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD12401-400KWS?
AD12401-400KWS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD12401-400KWS order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD12401-400KWS?
For technical support, including AD12401-400KWS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD12401-400KWS requirements.
6.How does Aetrix verify that AD12401-400KWS is sourced from the original manufacturer or authorized distributors?
All AD12401-400KWS products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD12401-400KWS meets industry standards.
7.What is the process for return or replacement of AD12401-400KWS?
All AD12401-400KWS units undergo pre-shipment inspection (PSI). If there is an issue with AD12401-400KWS, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD12401-400KWS part is unused and in its original packaging.
Return procedure for AD12401-400KWS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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