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Analog Devices Inc. AD12401-400JWS
- Part No.:
- AD12401-400JWS
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- Module
- Datasheet:
-
AD12401-400JWS.pdf
- Description:
- IC ADC 12BIT 400MSPS 120-PIN MOD
- Quantity:
- Payment:
- Shipping:
Inventory:4,594
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Product details
Overview
AD12401-400JWS from Analog Devices is a 12-bit, 400 MSPS time-interleaved analog-to-digital converter with transformer-coupled input, LVDS outputs, and integrated 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 front-ends and multichannel receivers.
For engineers reviewing the AD12401-400JWS datasheet, AD12401-400JWS pinout, AD12401-400JWS application, or AD12401-400JWS equivalent, this page provides verified functional identity, exact package mapping (2.9" × 2.6" × 0.6" module), confirmed dual-channel LVDS output timing, gain-select configuration (JWS = high-gain grade), and validated alternative options for wideband ADC replacement in phased-array and secure comms designs.
Technical Context
The AD12401-400JWS implements a two-channel time-interleaved architecture with proprietary AFB™ digital post-processing to suppress image spurs and improve SFDR beyond conventional interleaving limits. Its analog input is transformer-coupled and ac-coupled, supporting 10–175 MHz bandwidth with 1.6 Vp-p full-scale range and 1:1.5 VSWR.
Digital interface uses LVDS signaling at 3.3 V (VC) and 1.5 V (VD) supplies, with twos-complement 12-bit output per channel (DA0–DA11 and DB0–DB11), pipeline latency fixed at 74 clock cycles, and aperture jitter of 0.4 ps rms. Gain mode is selected via H/L_GAIN pin: pulled high for JWS high-gain grade (1.6 Vp-p FS), grounded for KWS low-gain grade (3.2 Vp-p FS).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - supports precise quantization of wide dynamic range RF/IF signals |
| Max Sample Rate | 400 MSPS - enables Nyquist-zone sampling up to 200 MHz baseband or second-Nyquist operation |
| SNR @ 128 MHz | 63 dBFS - ensures >10-bit effective resolution for 70+ MHz IF digitization |
| SFDR @ 128 MHz | 70 dBFS - suppresses spurious content critical for multi-tone radar and comms signal integrity |
| Analog Input BW | 480 MHz - supports broadband transformer coupling with flat response to 175 MHz |
| Aperture Jitter | 0.4 ps rms - limits sampling uncertainty-induced noise floor degradation at high input frequencies |
| Power Dissipation | 6.8 W max - requires active thermal management in enclosed module form factor |
Pinout & Package
AD12401-400JWS is housed in an enclosed 2.9" × 2.6" × 0.6" module with Samtec QTE-060-01-L-D-A-K-TR edge connector (132-pin). Ground planes are segregated: AGND (Pins 129–132), DGND (Pins 121–128), and internal power/ground routing optimized for mixed-signal isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN | Analog Input | Transformer-coupled, ac-coupled differential input port; 1.6 Vp-p FS for JWS grade |
| ENC / ENC | Encode Clock Input | Differential or single-ended 400 MSPS timing reference; 100 Ω termination required |
| DA0–DA11 / DB0–DB11 | Dual-Channel LVDS Data Outputs | Twos-complement 12-bit parallel outputs per channel; true/complement pairs reduce EMI |
| DRA / DRB | Data Ready Outputs | Synchronous strobes indicating valid data on corresponding channel outputs |
| OROUT / OROUT | Overrange Detection | True/complement flags signaling analog input exceeding full-scale range |
| H/L_GAIN | Gain Mode Select | Pulled high (3.3 V) for JWS high-gain mode (1.6 Vp-p FS); grounded for KWS low-gain mode |
| DR_EN | Data Ready Enable | Asynchronous control to gate DRA/DRB assertion; tie to 3.3 V if unused |
| RESET | Master Reset | LVTTL-active-low reset; min 200 ns pulse width; device resumes after ≤600 ms |
Key Features
| Feature | Design Value |
|---|---|
| Advanced Filter Bank (AFB™) post-processing | Proprietary digital correction from V Corp Technologies that enhances SFDR by suppressing time-interleaving image spurs without external calibration |
| Wideband ac-coupled input conditioning | Optimized analog front-end supports 10–175 MHz input with <0.5 dB flatness and 1:1.5 VSWR into 50 Ω |
| Flexible ENCODE interface | Accepts differential PECL/LVDS or single-ended sine/square wave; no external termination needed for differential mode |
| High/low gain grade selection | H/L_GAIN pin configures full-scale range: 1.6 Vp-p (JWS) or 3.2 Vp-p (KWS), enabling system-level dynamic range optimization |
| LVDS output compliance | 247–454 mV differential swing at 3.3 V supply; compatible with standard LVDS receivers and 100 Ω point-to-point termination |
Applications
| Radar Front-End Digitization | Phased Array Beamforming |
|---|---|
Use Scenario: High-speed digitization of IF signals from T/R modules in ground-based or airborne radar systems operating at L/S/C bands. IC Role / Device Role / Timing Role: Dual-channel ADC capturing synchronized I/Q or time-interleaved samples at 400 MSPS for real-time pulse compression and Doppler processing. Use Value: 70 dBFS SFDR at 128 MHz prevents false target detection caused by intermodulation spurs in dense RF environments. |
Use Scenario: Multi-element antenna array requiring simultaneous sampling across dozens of channels with matched gain, phase, and latency. IC Role / Device Role / Timing Role: High-fidelity analog capture stage feeding FPGA-based beamformer; AFB™ post-processing ensures consistent channel-to-channel SFDR. Use Value: Fixed 74-cycle pipeline latency enables deterministic timing alignment across distributed ADC nodes in digital beamforming architectures. |
| Multichannel Secure Comms Receiver | Wireless Broadband Test Equipment |
Use Scenario: Wideband cryptographic receiver monitoring multiple frequency-hopped channels in military SATCOM or tactical radio systems. IC Role / Device Role / Timing Role: Wideband ADC front-end supporting instantaneous bandwidth >175 MHz for real-time spectrum analysis and signal classification. Use Value: 175 MHz analog input bandwidth and 63 dBFS SNR enable reliable demodulation of OFDM and spread-spectrum waveforms under jamming conditions. |
Use Scenario: Signal analyzer or vector signal generator requiring high-fidelity waveform capture and generation for 5G NR, Wi-Fi 6E, and mmWave validation. IC Role / Device Role / Timing Role: Reference-grade digitizer in automated test equipment, where low aperture jitter (0.4 ps rms) preserves EVM performance at high symbol rates. Use Value: Sub-picosecond jitter minimizes noise floor elevation, enabling accurate error vector magnitude (EVM) measurement down to −45 dB for 1024-QAM signals. |
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 AFB™ post-processing; lower power (2.8 W); uses JESD204B serial output | Lower sample rate limits Nyquist zone to 125 MHz; serial interface reduces PCB routing complexity but adds FPGA link layer overhead | Select when system prioritizes power efficiency and digital interface simplicity over maximum SFDR at 400 MSPS |
| ADC12D1800RFIRGCT | 12-bit, dual 1.8 GSPS; no integrated post-processing; requires external clock conditioning; higher aperture jitter (0.7 ps) | Supports direct RF sampling above 1 GHz but lacks AFB™-level spur suppression; demands tighter layout and clock distribution | Select when ultra-high sample rate justifies added design complexity and SFDR trade-off in direct-conversion architectures |
Compared with AD12401-400JWS, AD9625BCPZ-250 trades 150 MSPS bandwidth and AFB™-enhanced SFDR for lower power and serial interface, while ADC12D1800RFIRGCT extends sample rate to 1.8 GSPS at the cost of higher jitter and no embedded digital correction-making AD12401-400JWS optimal for 400 MSPS wideband IF digitization where spur-free dynamic range is critical.
Availability
AD12401-400JWS is available at Aetrix Electronics and suitable for radar subsystems, phased array antennas, and secure communications receivers requiring stable component supply, long-term obsolescence planning, and traceable sourcing for defense and aerospace programs.
Supply support for AD12401-400JWS 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, with deep expertise in precision data conversion and RF signal chain solutions.
The AD12401 product line was designed specifically for wideband, high-dynamic-range digitization in defense electronics and instrumentation, emphasizing time-interleaved architecture robustness, integrated digital correction, and ruggedized module packaging for demanding RF environments.
FAQ
What is the full-scale input voltage range for AD12401-400JWS?
The AD12401-400JWS has a full-scale input voltage range of 1.6 Vp-p in high-gain mode, which is enabled by pulling the H/L_GAIN pin high to 3.3 V. This setting is factory-configured for the JWS variant and matches its specified dynamic performance including 63 dBFS SNR at 128 MHz. The low-gain KWS variant supports 3.2 Vp-p, but AD12401-400JWS must be used in high-gain configuration.
Does AD12401-400JWS require an external voltage reference?
No, AD12401-400JWS does not require an external voltage reference. It integrates all necessary reference circuitry internally, as confirmed in the General Description section of the datasheet. The device operates with three independent supplies-3.7 V analog (VA), 3.3 V digital (VC), and 1.5 V digital core (VD)-and achieves specified DC accuracy (±10% gain error, ±12 LSB offset) without external reference components.
What is the pipeline latency of AD12401-400JWS and how is it used in system timing?
The AD12401-400JWS has a fixed pipeline latency of exactly 74 encode clock cycles, plus propagation delay (tPD = 8.7 ns). This deterministic latency enables precise synchronization in time-critical applications like digital beamforming and pulsed radar. System designers use the DRA/DRB strobes-aligned to the 74th cycle after sampling-to latch valid data, ensuring repeatable timing margins across temperature and voltage variations.
How is the gain mode selected on AD12401-400JWS?
Gain mode on AD12401-400JWS is selected via the H/L_GAIN pin (Pin 103): pull-up to 3.3 V for high-gain (1.6 Vp-p FS), ground for low-gain (3.2 Vp-p FS). Since AD12401-400JWS is the high-gain grade, the pin must be actively pulled high-floating or incorrect biasing will result in undefined operation or failure to meet datasheet AC specifications.
What thermal management is required for AD12401-400JWS?
AD12401-400JWS dissipates up to 6.8 W and is rated for 0°C to 60°C case temperature. Its 2.9" × 2.6" × 0.6" module requires conductive heat sinking to a cold plate or forced-air cooling; the datasheet specifies thermal guidelines in Section "Thermal Considerations" and mandates mounting per Package Integrity guidelines to maintain reliability. Exceeding 60°C case temperature invalidates all AC performance guarantees.
AD12401-400JWS 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:
- -
AD12401-400JWS FAQ
1.How can I place an order for AD12401-400JWS through Aetrix?
Please submit a Request for Quotation (RFQ) for AD12401-400JWS 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 AD12401-400JWS reliable?
The price and inventory of AD12401-400JWS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD12401-400JWS is usually 5 days.
3.What payment methods are accepted for AD12401-400JWS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD12401-400JWS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD12401-400JWS?
AD12401-400JWS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD12401-400JWS 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 AD12401-400JWS?
For technical support, including AD12401-400JWS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD12401-400JWS requirements.
6.How does Aetrix verify that AD12401-400JWS is sourced from the original manufacturer or authorized distributors?
All AD12401-400JWS 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 AD12401-400JWS meets industry standards.
7.What is the process for return or replacement of AD12401-400JWS?
All AD12401-400JWS units undergo pre-shipment inspection (PSI). If there is an issue with AD12401-400JWS, 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 AD12401-400JWS part is unused and in its original packaging.
Return procedure for AD12401-400JWS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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