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Analog Devices Inc. AD9625BBPZ-2.5
- Part No.:
- AD9625BBPZ-2.5
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 196-LFBGA Exposed Pad
- Datasheet:
-
AD9625BBPZ-2.5.pdf
- Description:
- IC ADC 12BIT 196BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,784
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Product details
Overview
AD9625BBPZ-2.5 from Analog Devices is a 12-bit, 2.5 GSPS monolithic analog-to-digital converter designed for direct RF sampling in the second Nyquist zone. It features 3.2 GHz analog input bandwidth, −149.5 dBFS/Hz noise spectral density, JESD204B 6- or 8-lane serial output (6.5 Gbps at 2.5 GSPS), and dual decimation filters with 10-bit NCOs. It serves in radar receivers and electronic warfare systems requiring high dynamic range at microwave frequencies.
For engineers reviewing the AD9625BBPZ-2.5 datasheet, AD9625BBPZ-2.5 pinout, AD9625BBPZ-2.5 application, or AD9625BBPZ-2.5 equivalent, key selection considerations include SFDR performance at 1–1.8 GHz input (77–79 dBc), decimation flexibility, SYSREF±-based multichip synchronization, and compliance with JESD204B Subclass 1 timing requirements.
Technical Context
The AD9625BBPZ-2.5 implements a pipelined ADC architecture with on-chip 1.2 V reference and differential clock input. Its digital downconverter (DDC) includes two independent decimate-by-8 or decimate-by-16 filters, each paired with a 10-bit numerically controlled oscillator (NCO) for frequency translation.
JESD204B interface supports 6- or 8-lane CML output with deterministic latency (226 clock cycles in 8-lane mode), ILAS-based lane alignment, and subclass 1 sync via SYSREF±. The device operates across −40°C to +85°C case temperature with separate 1.3 V (core) and 2.5 V (I/O, driver) supply domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution & Max Sample Rate | 12-bit, 2.5 GSPS - enables digitization of wideband signals up to 1.25 GHz Nyquist bandwidth without undersampling loss. |
| Analog Input Bandwidth | 3.2 GHz full-power - supports direct sampling of L/S/C-band RF signals without external IF conversion. |
| SFDR @ 1 GHz / −1 dBFS | 79 dBc - preserves signal integrity in spectrum analysis and radar pulse detection where spurious content must be suppressed. |
| Noise Spectral Density | −149.5 dBFS/Hz - determines minimum detectable signal level in low-SNR applications like electronic surveillance. |
| JESD204B Output | 6- or 8-lane CML, 6.5 Gbps - reduces PCB routing complexity versus parallel CMOS/LVDS while maintaining deterministic latency for coherent array systems. |
| Decimation & NCO | Two independent decimate-by-8/16 filters with 10-bit NCOs - allows simultaneous baseband translation of two frequency bands within one ADC. |
| Supply Voltages | 1.3 V (AVDD1/DVDD1/DRVDD1) and 2.5 V (AVDD2/DVDD2/DRVDD2) - separates noise-sensitive analog core from high-speed digital I/O domains. |
Pinout & Package
The AD9625BBPZ-2.5 is housed in a 144-lead LFCSP (12 mm × 12 mm × 1.1 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow the standard AD9625 pinout per Rev. C datasheet Figure 5 and Table 8.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+, VIN− | Differential analog input | Accepts 1.2 V p-p full-scale differential RF signal; requires matched 100 Ω termination and careful layout for >3 GHz bandwidth. |
| CLK+, CLK− | Differential sampling clock input | Supports 330–2600 MSPS; 50% duty cycle required; jitter sensitivity ≤80 fs rms limits phase noise impact on SNR. |
| SERDOUT[0]± to SERDOUT[7]± | JESD204B CML serial data outputs | Eight differential lanes (configurable to six); require 100 Ω differential AC-coupled termination to FPGA JESD204B receiver. |
| SYSREF+, SYSREF− | Multi-device synchronization reference | Enables deterministic latency alignment across multiple AD9625BBPZ-2.5 devices in phased-array or MIMO systems. |
| RSTB | Asynchronous reset input | Active-low; initiates full internal state reset including JESD204B link state machine and DDC registers. |
| SDIO, SCLK, CSB | 3-wire SPI control interface | Configures DDC, gain/offset calibration, test modes, and JESD204B lane mapping; operates up to 50 MHz SCLK. |
Key Features
| Feature | Design Value |
|---|---|
| Direct RF sampling capability | 3.2 GHz analog input bandwidth enables digitization of L-band (1–2 GHz) signals without mixer or IF stage, reducing system size and noise figure. |
| Dual independent DDC paths | Each path provides decimation by 8 or 16 plus 10-bit NCO tuning - supports concurrent monitoring of two distinct RF channels or frequency-hopped signals. |
| JESD204B Subclass 1 compliance | Deterministic latency and SYSREF±-based alignment ensure time-coherent sampling across multiple converters in beamforming or T/R modules. |
| Low error rate & timestamping | Conversion error rate <10⁻¹⁵ and embedded timestamp feature support high-reliability signal capture in mission-critical EW and radar applications. |
| Flexible power domain partitioning | Separate 1.3 V (core logic/analog) and 2.5 V (JESD204B I/O, clock drivers) supplies allow optimized noise isolation and thermal management. |
Applications
| Radar Receiver Front-End | Military Spectrum Monitoring |
|---|---|
Use Scenario: Digitizing pulsed X-band radar returns (8–12 GHz downconverted to 1–2 GHz IF) in ground-based early warning systems. IC Role / Device Role / Timing Role: Primary ADC capturing high-dynamic-range IF signals; synchronized via SYSREF± to local oscillator and FPGA processing chain. Use Value: 79 dBc SFDR at 1 GHz ensures clean detection of weak targets amid strong clutter; 2.5 GSPS sample rate supports 1.25 GHz instantaneous bandwidth for pulse width/frequency analysis. | Use Scenario: Wideband signal intelligence (SIGINT) receiver scanning 500 MHz–2 GHz spectrum for threat identification and geolocation. IC Role / Device Role / Timing Role: High-speed digitizer feeding real-time FFT and demodulation engines; decimation filters isolate narrowband signals of interest. Use Value: Dual DDC paths enable simultaneous analysis of two non-contiguous bands; −149.5 dBFS/Hz noise floor improves probability of intercept for low-PW signals. |
| Electronic Countermeasures (ECM) | High-Speed Digital Storage Oscilloscope |
Use Scenario: Adaptive jammer front-end acquiring and characterizing hostile radar waveforms for real-time response generation. IC Role / Device Role / Timing Role: Real-time ADC in closed-loop RF sensing path; timestamped samples feed waveform classification and synthesis subsystems. Use Value: 226-cycle pipeline latency (8-lane mode) enables sub-microsecond reaction time; conversion error rate <10⁻¹⁵ guarantees fidelity during critical threat assessment. | Use Scenario: 10+ GS/s equivalent sampling oscilloscope using interleaved ADC architecture with AD9625BBPZ-2.5 as core channel. IC Role / Device Role / Timing Role: Single-channel 2.5 GSPS digitizer providing raw waveform data to FPGA-based de-interleaving and memory controller. Use Value: 57.6 dBFS SNR at 1 GHz supports accurate amplitude measurement of fast transients; JESD204B interface simplifies high-density board layout vs. parallel LVDS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9680BCBZ-500 | 14-bit, 500 MSPS; lower sample rate but higher resolution and SNR (70.5 dBFS); integrated digital decimation and FIR filtering. | Better suited for high-fidelity IF sampling where resolution > speed; lacks direct RF bandwidth and JESD204B subclass 1 sync. | Select when system prioritizes ENOB over instantaneous bandwidth and does not require multi-device deterministic latency alignment. |
| ADC12DJ3200IRSBT | 12-bit, dual-channel 3.2 GSPS; single-package dual ADC with shared clocking; JESD204C capable; higher power (5.4 W). | Enables true time-interleaved operation without external skew compensation; better for compact dual-channel receivers. | Select when dual independent 3.2 GSPS channels in one package are required and JESD204C infrastructure is available. |
Compared with AD9625BBPZ-2.5, AD9680BCBZ-500 trades speed for resolution and ease of filtering, while ADC12DJ3200IRSBT doubles channel count and sample rate at the cost of higher power and no subclass 1 SYSREF± support - making AD9625BBPZ-2.5 optimal for deterministic, single-channel, wideband RF digitization in constrained thermal envelopes.
Availability
AD9625BBPZ-2.5 is available at Aetrix Electronics and suitable for radar systems, electronic warfare platforms, and high-performance test equipment requiring stable component supply across extended production lifecycles.
Supply support for AD9625BBPZ-2.5 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 AD9625 product line delivers ultra-high-speed ADCs for direct RF sampling in defense, aerospace, and instrumentation applications-designed to replace traditional heterodyne architectures with simplified, wideband, software-defined signal chains.
FAQ
What is the maximum analog input frequency supported by the AD9625BBPZ-2.5?
The AD9625BBPZ-2.5 supports a full-power analog input bandwidth of 3.2 GHz, enabling direct sampling of RF signals up to the second Nyquist zone (i.e., up to 2.5 GHz input with 2.5 GSPS sampling). Performance metrics such as SFDR and SNR are specified up to 1.8 GHz input, with validated operation confirmed through typical performance curves in the Rev. C datasheet.
Does the AD9625BBPZ-2.5 support JESD204B subclass 1 operation?
Yes, the AD9625BBPZ-2.5 fully supports JESD204B subclass 1, including deterministic latency and SYSREF±-based multi-device synchronization. The device implements ILAS (Initial Lane Alignment Sequence), lane alignment, and subclass 1 timing requirements as defined in the JESD204B specification, with verified behavior in 6- and 8-lane configurations at 2.5 GSPS.
What are the supply voltage requirements for the AD9625BBPZ-2.5?
The AD9625BBPZ-2.5 requires two analog supply domains: AVDD1/DVDD1/DRVDD1 at 1.3 V ±3% and AVDD2/DVDD2/DRVDD2 at 2.5 V ±4%. DVDDIO and SPI_VDDIO accept 2.5 V or 3.3 V. All supplies must be independently filtered and decoupled per the layout guidelines in the AD9625 Rev. C datasheet to maintain SFDR and SNR performance.
Can the AD9625BBPZ-2.5 perform digital downconversion internally?
Yes, the AD9625BBPZ-2.5 integrates two independent digital downconverters (DDCs), each configurable for decimation by 8 or 16 and paired with a 10-bit numerically controlled oscillator (NCO). This enables real-time frequency translation and bandwidth reduction prior to JESD204B serialization, reducing FPGA processing load in radar and SIGINT systems.
What is the pipeline latency of the AD9625BBPZ-2.5 in 8-lane JESD204B mode?
In 8-lane JESD204B mode at 2.5 GSPS, the AD9625BBPZ-2.5 exhibits a total pipeline latency of 226 clock cycles, as measured from the sampling edge of the analog input to the first valid JESD204B frame output. This value is deterministic and fixed under subclass 1 operation, enabling precise timing alignment in coherent multi-ADC systems.
AD9625BBPZ-2.5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 196-LFBGA Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 2.5G
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- JESD204B
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 1.26V ~ 1.32V, 2.4V ~ 2.6V
- Voltage - Supply, Digital:
- 1.26V ~ 1.32V, 2.4V ~ 2.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 196-BGA-ED (12x12)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9625BBPZ-2.5 FAQ
1.How can I place an order for AD9625BBPZ-2.5 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9625BBPZ-2.5 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 AD9625BBPZ-2.5 reliable?
The price and inventory of AD9625BBPZ-2.5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9625BBPZ-2.5 is usually 5 days.
3.What payment methods are accepted for AD9625BBPZ-2.5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9625BBPZ-2.5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9625BBPZ-2.5?
AD9625BBPZ-2.5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9625BBPZ-2.5 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 AD9625BBPZ-2.5?
For technical support, including AD9625BBPZ-2.5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9625BBPZ-2.5 requirements.
6.How does Aetrix verify that AD9625BBPZ-2.5 is sourced from the original manufacturer or authorized distributors?
All AD9625BBPZ-2.5 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 AD9625BBPZ-2.5 meets industry standards.
7.What is the process for return or replacement of AD9625BBPZ-2.5?
All AD9625BBPZ-2.5 units undergo pre-shipment inspection (PSI). If there is an issue with AD9625BBPZ-2.5, 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 AD9625BBPZ-2.5 part is unused and in its original packaging.
Return procedure for AD9625BBPZ-2.5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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