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Analog Devices Inc. AD9626BCPZ-250
- Part No.:
- AD9626BCPZ-250
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 56-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD9626BCPZ-250.pdf
- Description:
- IC ADC 12BIT PIPELINED 56LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:140
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Product details
Overview
AD9626BCPZ-250 from Analog Devices is a 12-bit, 250 MSPS analog-to-digital converter optimized for wideband communications and radar subsystems. It delivers 64.8 dBFS SNR at 70 MHz input, 80 dBc SFDR, and 10.5 ENOB with 700 MHz analog bandwidth, operating from a single 1.8 V supply and supporting CMOS output formats.
For engineers reviewing the AD9626BCPZ-250 datasheet, AD9626BCPZ-250 pinout, AD9626BCPZ-250 application, or AD9626BCPZ-250 equivalent, key selection criteria include sampling rate scalability (170/210/250 MSPS variants), on-chip reference and track-and-hold integration, programmable input range (1.0–1.5 V), and dual-port interleaved mode support up to 125 MHz.
Technical Context
The AD9626BCPZ-250 employs a pipelined switched-capacitor ADC architecture with digital error correction logic and a front-end differential sample-and-hold amplifier. Sampling occurs on the rising edge of the differential clock, and each pipeline stage (except the last) uses a low-resolution flash ADC, switched-capacitor DAC, and residue amplifier with 1-bit redundancy.
Digital outputs are CMOS-compatible and configurable as offset binary, two's complement, or Gray code. The device includes a clock duty cycle stabilizer, integrated data capture clock (DCO+/DCO−), and serial port interface (SPI) for configuration of gain, power-down, test patterns, and data formatting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - provides 4096 discrete amplitude levels for high-fidelity signal digitization in RF and instrumentation applications. |
| Max Sample Rate | 250 MSPS - enables Nyquist-limited baseband capture up to 125 MHz or undersampling of IF signals up to 700 MHz. |
| SNR @ 70 MHz | 64.8 dBFS - ensures >10-bit effective resolution for demanding wideband receiver chains in cable reverse path and radar. |
| Full-Power BW | 700 MHz - supports direct sampling of L-band and S-band RF signals without external amplification or filtering degradation. |
| Power Dissipation | 364 mW @ 250 MSPS - balances performance and thermal management in dense FPGA-ADC interfaces with 1.8 V digital supply. |
| Input Range | Programmable 1.0–1.5 V p-p - allows optimization for varying signal chain gain distribution and noise floor trade-offs. |
| Latency | 6 clock cycles - deterministic timing critical for closed-loop systems like power amplifier linearization and real-time feedback control. |
Pinout & Package
AD9626BCPZ-250 is housed in a 56-lead LFCSP (Lead Frame Chip Scale Package) with exposed paddle connected to AGND, specified for −40°C to +85°C industrial operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+, VIN− | Differential analog input | Accepts ac- or dc-coupled differential signals; internally biased to ~1.4 V common-mode; requires matched source impedance for optimal SFDR. |
| CLK+, CLK− | Differential clock input | Supports CMOS/LVDS/LVPECL; minimum pulse width 1.8 ns at 250 MSPS; aperture jitter 0.2 ps rms enables high IF sampling fidelity. |
| DA0–DA11, DB0–DB11 | CMOS digital output ports | Two 12-bit parallel ports; single-port mode runs at 250 MHz; interleaved mode splits data across ports at 125 MHz per port for FPGA timing closure. |
| DCO+, DCO− | Data clock output | Source-synchronous clock aligned to output data edges; essential for reliable capture in high-speed FPGA I/O banks without external PLL deskew. |
| RBIAS | Chip bias current set | Connects to ground via 1% 10 kΩ resistor; sets internal bias for optimal linearity and power vs. temperature stability. |
| SDIO/DCS, SCLK/DFS, CSB | SPI configuration interface | Enables runtime control of output format, duty cycle stabilizer, power-down, gain, and test pattern generation without external logic. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip reference & track-and-hold | Eliminates need for external reference ICs and discrete T/H circuits, reducing BOM count and layout sensitivity in compact RF front ends. |
| Single 1.8 V supply | Unifies analog and digital rail requirements, simplifying power delivery design and enabling direct interface with 1.8 V FPGA I/O banks. |
| Programmable output format | Runtime-selectable offset binary, two's complement, or Gray code allows seamless integration with diverse DSP/FPGA data-path architectures. |
| Interleaved dual-port mode | Reduces per-port data rate by 2×, easing timing constraints on FPGA inputs and enabling use of lower-cost, non-ULP I/O standards. |
| Integrated clock duty cycle stabilizer | Compensates for clock asymmetry from external sources, preserving sampling aperture accuracy without requiring precision clock conditioning circuitry. |
Applications
| Wireless Base Station Receiver | Cable Modem Reverse Path |
|---|---|
Use Scenario: Digitizing 70–100 MHz IF signals from multi-carrier wideband receivers in LTE/5G macrocells. IC Role / Device Role / Timing Role: High-speed ADC capturing composite downconverted signals with minimal quantization noise and harmonic distortion. Use Value: 64.8 dBFS SNR and 80 dBc SFDR at 70 MHz enable detection of weak adjacent-channel signals in spectrally dense environments. | Use Scenario: Sampling upstream return-path signals (5–42 MHz) in DOCSIS 3.1/4.0 cable headend equipment. IC Role / Device Role / Timing Role: Low-power, high-linearity ADC interfacing directly with broadband analog front-end filters and amplifiers. Use Value: 364 mW power at 250 MSPS and ±0.7 LSB INL ensure thermal stability and amplitude accuracy across temperature-varying plant environments. |
| Radar Signal Processing | Communications Test Equipment |
Use Scenario: Capturing pulsed L-band (1–2 GHz) radar returns after IF translation in airborne or ground-based subsystems. IC Role / Device Role / Timing Role: Wideband ADC providing deterministic 6-cycle latency and 700 MHz analog bandwidth for accurate pulse shape preservation. Use Value: 0.2 ps rms aperture jitter and 10.5 ENOB support precise time-of-flight measurement and Doppler shift analysis. | Use Scenario: Embedded digitizer in vector signal analyzers and arbitrary waveform generators requiring flexible sampling and low-latency reconfiguration. IC Role / Device Role / Timing Role: Reconfigurable ADC with SPI-controlled data format, gain, and test patterns for automated calibration and verification workflows. Use Value: Serial port interface enables remote firmware-driven setup changes without hardware modification or FPGA recompilation. |
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, but with JESD204B serial output instead of parallel CMOS; higher power (430 mW); no interleaved dual-port mode. | Targets space-constrained or FPGA-GTY-transceiver-based designs where PCB routing density outweighs parallel bus timing complexity. | Select AD9625BCPZ-250 when serial interface reduces FPGA pin count and board layer count is critical; retain AD9626BCPZ-250 for legacy parallel-FPGA interfaces or deterministic latency requirements. |
| ADS54J60IRGC | 14-bit, 500 MSPS, JESD204B output; higher resolution and speed but no on-chip reference; requires external REF and clock cleanup. | Suitable for next-generation test equipment needing >12-bit ENOB at IF frequencies above 150 MHz. | Choose ADS54J60IRGC only if resolution and sample rate justify added system complexity; AD9626BCPZ-250 remains optimal for cost-sensitive, self-contained wideband digitizers. |
Compared with AD9625BCPZ-250 and ADS54J60IRGC, AD9626BCPZ-250 uniquely combines parallel CMOS outputs, integrated reference, and deterministic 6-cycle latency-making it the preferred choice for FPGA-based real-time processing where timing predictability and analog integration reduce system-level design risk.
Availability
AD9626BCPZ-250 is available at Aetrix Electronics and suitable for wireless infrastructure, cable access equipment, and radar subsystems requiring stable component supply across extended product lifecycles.
Supply support for AD9626BCPZ-250 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The AD9626 product line delivers monolithic, high-speed ADCs optimized for wideband carrier and broadband systems, emphasizing dynamic performance, low power, and ease of integration in RF signal chains.
FAQ
What is the maximum analog input frequency supported by the AD9626BCPZ-250?
The AD9626BCPZ-250 features a full-power analog bandwidth of 700 MHz, enabling direct sampling of RF signals up to this frequency. Its dynamic performance (e.g., 64.8 dBFS SNR) is characterized up to 70 MHz, but the device maintains usable response beyond that-supporting undersampling applications in L-band and S-band radar and communications systems where aliasing is managed by anti-alias filtering.
Does the AD9626BCPZ-250 require external voltage references or clock conditioning circuits?
No. The AD9626BCPZ-250 integrates an on-chip voltage reference and track-and-hold amplifier, eliminating the need for external reference ICs. It also includes a clock duty cycle stabilizer (DCS) that corrects input clock asymmetry, removing the requirement for external clock conditioning. These integrations simplify system design and improve robustness in thermally varying environments.
How does the interleaved dual-port mode function in the AD9626BCPZ-250?
In interleaved dual-port mode, the AD9626BCPZ-250 splits its 250 MSPS output stream across two 12-bit ports (Port A and Port B), delivering alternating samples at 125 MSPS per port. This reduces per-port data rate and timing margin pressure on FPGA inputs, facilitating reliable capture using standard LVCMOS I/O without requiring ultra-high-speed transceivers or complex PCB routing.
What power supply requirements does the AD9626BCPZ-250 have?
The AD9626BCPZ-250 operates from two 1.8 V supplies: AVDD for the analog core and DRVDD for digital outputs. Both rails must be independently decoupled per the layout guidelines. Total power consumption is 364 mW at 250 MSPS (1.8 V), with separate current draw specs: ~191 mA on AVDD and ~25.5 mA on DRVDD in single-port mode.
Is the AD9626BCPZ-250 pin-compatible with other members of the AD9626 family?
Yes. The AD9626BCPZ-250 shares identical pinout and package (56-lead LFCSP) with the AD9626-170 and AD9626-210 variants. This allows drop-in replacement across sample rate grades without PCB redesign, enabling flexible prototyping and production scaling based on system performance and cost targets.
AD9626BCPZ-250 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 56-VFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 250M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 56-LFCSP-VQ (8x8)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9626BCPZ-250 FAQ
1.How can I place an order for AD9626BCPZ-250 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9626BCPZ-250 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 AD9626BCPZ-250 reliable?
The price and inventory of AD9626BCPZ-250 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9626BCPZ-250 is usually 5 days.
3.What payment methods are accepted for AD9626BCPZ-250?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9626BCPZ-250 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9626BCPZ-250?
AD9626BCPZ-250 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9626BCPZ-250 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 AD9626BCPZ-250?
For technical support, including AD9626BCPZ-250 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9626BCPZ-250 requirements.
6.How does Aetrix verify that AD9626BCPZ-250 is sourced from the original manufacturer or authorized distributors?
All AD9626BCPZ-250 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 AD9626BCPZ-250 meets industry standards.
7.What is the process for return or replacement of AD9626BCPZ-250?
All AD9626BCPZ-250 units undergo pre-shipment inspection (PSI). If there is an issue with AD9626BCPZ-250, 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 AD9626BCPZ-250 part is unused and in its original packaging.
Return procedure for AD9626BCPZ-250:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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