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Analog Devices Inc. AD9250BCPZ-250
- Part No.:
- AD9250BCPZ-250
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-WFQFN Exposed Pad, CSP
- Datasheet:
-
AD9250BCPZ-250.pdf
- Description:
- IC ADC 14BIT PIPELINED 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,753
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Product details
Overview
AD9250BCPZ-250 from Analog Devices is a dual-channel, 14-bit analog-to-digital converter with 250 MSPS sampling rate, JESD204B Subclass 0/1 serial interface, and integrated PLL clock multiplier. It delivers 70.6 dBFS SNR at 185 MHz input and 88 dBc SFDR, operating from a single 1.8 V supply. It targets high-bandwidth IF sampling in multimode wireless receivers and radar front ends.
For engineers reviewing the AD9250BCPZ-250 datasheet, AD9250BCPZ-250 pinout, AD9250BCPZ-250 application, or AD9250BCPZ-250 equivalent, key selection criteria include JESD204B lane configuration (M=2, L=2), 250 MSPS real-time throughput per channel, 400 MHz full-power analog input bandwidth, and CML-level SERDOUT± compliance at up to 5 Gbps per lane.
Technical Context
The AD9250BCPZ-250 implements two independent pipelined 14-bit ADC cores with integrated error correction logic, each supporting differential analog inputs up to 400 MHz. Its on-chip PLL multiplies a single external clock (40–625 MHz) to generate the JESD204B link clock, eliminating need for separate high-frequency reference sources.
JESD204B Subclass 1 operation enables deterministic latency via SYSREF± synchronization, while internal DCS stabilizes ADC performance across clock duty cycle variation. Channel isolation exceeds 95 dB, and flexible input range (1.4–2.0 V p-p) supports direct RF/IF sampling without external gain stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - Enables ≥86 dB theoretical SNR and precise amplitude quantization for wide dynamic range signal capture. |
| Max Sampling Rate | 250 MSPS - Supports Nyquist-limited baseband capture up to 125 MHz or IF sampling of signals centered at 185 MHz with >70 dBFS SNR. |
| SNR @ 185 MHz | 70.6 dBFS - Confirmed measurement at full speed; defines usable ENOB of 11.2 bits for demanding communications waveforms. |
| SFDR @ 185 MHz | 88 dBc - Specifies spurious-free dynamic range for clean spectral analysis in LTE/WiMAX receiver applications. |
| JESD204B Data Rate | Up to 5.0 Gbps per lane - Enables dual-channel 14-bit data transmission over two lanes with M=2, L=2 configuration at 250 MSPS. |
| Analog Input Bandwidth | 400 MHz - Allows direct sampling of UHF band signals (e.g., 3G/4G LTE uplink) without intermediate frequency translation. |
| Power Consumption | 711 mW at 250 MSPS - Total system power including analog, digital, and driver supplies; enables thermal management in dense RF modules. |
| Supply Voltage | 1.8 V single supply - Reduces board-level power conversion complexity and improves PSRR vs. multi-rail alternatives. |
Pinout & Package
The AD9250BCPZ-250 is housed in a 48-lead, 7 mm × 7 mm LFCSP package with exposed thermal paddle soldered to ground plane. Pin count and layout are optimized for high-speed analog routing and JESD204B signal integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+A / VIN–A | Differential analog input, Channel A | Accepts 1.4–2.0 V p-p differential signal; supports DC-coupled or AC-coupled IF/RF inputs up to 400 MHz. |
| VIN+B / VIN–B | Differential analog input, Channel B | Independent second channel with matched gain/offset; enables I/Q demodulation or diversity reception. |
| CLK+ / CLK− | Differential sampling clock input | Accepts CMOS/LVDS/LVPECL clocks up to 625 MHz; internal DCS corrects duty cycle distortion. |
| RFCLK | Optional RF clock input | Supports higher-frequency clocking (650–1500 MHz) to simplify system board design when external clock synthesis is constrained. |
| SYSREF+ / SYSREF− | JESD204B Subclass 1 synchronization reference | Enables deterministic latency alignment across multiple converters; required for coherent multi-device timing in phased arrays. |
| SERDOUT0± / SERDOUT1± | JESD204B serial output lanes | CML-level outputs compliant with 3.4–5.0 Gbps; support M=2, L=2 configuration for full 250 MSPS dual-channel data streaming. |
| SYNCINB+ / SYNCINB− | JESD204B Subclass 0 synchronization input | Provides alternative sync mechanism for legacy or simplified link initialization without SYSREF infrastructure. |
| SDIO / SCLK / CS | 3-wire SPI interface | Configures ADC settings (DCS, power-down, test modes), reads back DC correction values, and controls JESD204B link parameters. |
| FDA / FDB | Fast detect outputs (Channel A/B) | Asynchronous overrange flags with 7-cycle latency; used for real-time AGC or clipping mitigation in burst-mode receivers. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 14-bit pipeline ADC cores | Delivers simultaneous sampling of two independent signals with <2 LSB INL and 95 dB inter-channel isolation. |
| JESD204B Subclass 0/1 support | Reduces FPGA pin count by >50% vs. parallel LVDS; enables scalable multi-converter systems with deterministic latency (Subclass 1). |
| On-chip PLL clock multiplier | Eliminates need for external high-frequency clock source; accepts 40–625 MHz input and generates exact JESD204B link clock. |
| ADC clock duty cycle stabilizer (DCS) | Maintains SNR/SFDR performance despite ±10% clock duty cycle variation-critical for low-jitter sampling in noisy environments. |
| Flexible analog input range | Programmable 1.4–2.0 V p-p span allows optimization for noise floor (lower range) or headroom (higher range) without external amplifiers. |
| Integrated voltage reference | Removes external reference IC and associated layout sensitivity; ensures stable 1.75 V p-p nominal full-scale with <±16 ppm/°C drift. |
Applications
| DOCSIS 3.0 CMTS Upstream Receive | Radar Receiver Front End |
|---|---|
Use Scenario: Capturing upstream cable signals from multiple subscribers in a shared reverse-path spectrum (5–85 MHz) with high dynamic range and low distortion. IC Role / Device Role / Timing Role: Dual-channel ADC digitizing I/Q baseband outputs from quadrature demodulators; JESD204B streams data directly to FPGA-based channel bonding engines. Use Value: 88 dBc SFDR prevents adjacent-channel interference in dense upstream bands; 250 MSPS enables oversampling for improved alias rejection and digital filtering flexibility. |
Use Scenario: Digitizing pulsed RF returns in X-band (8–12 GHz) radar systems after downconversion to IF (e.g., 100–300 MHz). IC Role / Device Role / Timing Role: High-speed IF sampling ADC providing time-aligned I/Q data for pulse-Doppler processing; SYSREF± enables phase-coherent multi-channel beamforming. Use Value: 400 MHz analog input bandwidth supports direct IF sampling without image-reject filters; 95 dB crosstalk preserves target resolution in monopulse angle estimation. |
| TD-SCDMA/WiMAX Base Station Receiver | Electronic Test & Measurement Equipment |
Use Scenario: Multimode cellular base station supporting TD-SCDMA, WiMAX, and LTE in same hardware platform with software-defined reconfiguration. IC Role / Device Role / Timing Role: Dual ADC serving as universal IF digitizer for diverse air interfaces; JESD204B interface scales to varying channel counts and sample rates via register programming. Use Value: Integer 1-to-8 clock divider and programmable input range allow seamless adaptation between 170 MSPS (TD-SCDMA) and 250 MSPS (WiMAX) modes without hardware change. |
Use Scenario: High-fidelity signal acquisition in broadband oscilloscopes and vector signal analyzers requiring low-noise, high-linearity digitization up to 200 MHz. IC Role / Device Role / Timing Role: Precision dual-channel ADC capturing transient waveforms and modulated signals; fast detect pins trigger acquisition on signal overrange events. Use Value: 70.6 dBFS SNR at 185 MHz ensures accurate EVM measurement for 256-QAM signals; standby mode reduces power during idle periods without compromising wake-up latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9253BCPZ-250 | 12-bit resolution, lower power (490 mW), same 250 MSPS rate and JESD204B interface. | Better suited for cost-sensitive, lower-dynamic-range applications like basic spectrum monitoring where 14-bit precision is unnecessary. | Select AD9253BCPZ-250 when ENOB ≤ 10 bits suffices and power budget is constrained; not suitable for LTE/WiMAX EVM-critical paths. |
| ADS42JB69IRGCT | Texas Instruments part: 16-bit, 250 MSPS, JESD204B, but uses LVDS outputs (not CML) and lacks integrated PLL. | Requires external clock synthesizer and termination network; better for systems already using TI's JESD204B ecosystem and needing higher resolution. | Choose ADS42JB69IRGCT only if 16-bit ENOB is mandatory and board layout accommodates LVDS routing and external clock generation. |
Compared with AD9250BCPZ-250, AD9253BCPZ-250 trades 2 bits of resolution for 30% lower power and reduced cost, while ADS42JB69IRGCT offers +2 bits but demands external clocking infrastructure and different PCB layout rules-making AD9250BCPZ-250 the balanced choice for 14-bit, self-contained, high-SFDR IF sampling.
Availability
AD9250BCPZ-250 is available at Aetrix Electronics and suitable for DOCSIS 3.0 CMTS upstream receive paths, radar receiver front ends, and multimode wireless base station development requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for AD9250BCPZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD9250 belongs to Analog Devices' high-speed data converter product line, engineered specifically for communications infrastructure, defense electronics, and test equipment demanding wide bandwidth, low jitter, and JESD204B interoperability.
FAQ
What is the maximum analog input frequency supported by the AD9250BCPZ-250?
The AD9250BCPZ-250 supports analog input frequencies up to 400 MHz, defined as its full-power bandwidth-the frequency at which the fundamental signal power drops by 3 dB. This enables direct sampling of IF signals in LTE, WiMAX, and radar applications without additional downconversion stages. Performance metrics such as SNR and SFDR remain specified up to 220 MHz, with usable response extending beyond.
Does the AD9250BCPZ-250 require an external voltage reference?
No, the AD9250BCPZ-250 includes an internal analog voltage reference that provides a stable 1.75 V p-p nominal full-scale range. This eliminates the need for external reference components and simplifies layout, while maintaining ±16 ppm/°C temperature drift and guaranteed no-missing-codes performance across the industrial temperature range.
How does the JESD204B interface of the AD9250BCPZ-250 operate at 250 MSPS?
At 250 MSPS, the AD9250BCPZ-250 configures its JESD204B interface in M=2 (two converters), L=2 (two lanes) mode, delivering 14-bit data from both channels at 5.0 Gbps per lane. This configuration achieves deterministic latency with SYSREF± synchronization and avoids data packing bottlenecks inherent in single-lane operation at full speed.
Can the AD9250BCPZ-250 be used with a 1.2 V FPGA I/O bank?
No-the AD9250BCPZ-250's SERDOUT0± and SERDOUT1± outputs are CML-compatible and require termination to DRVDD (1.8 V), not 1.2 V. Interfacing with a 1.2 V FPGA bank would violate absolute maximum ratings and risk damage. Proper interfacing requires matching the FPGA's high-speed transceiver to CML standards with 100 Ω differential termination referenced to 1.8 V.
What is the purpose of the RFCLK pin on the AD9250BCPZ-250?
The RFCLK pin on the AD9250BCPZ-250 provides an optional high-frequency clock input (650–1500 MHz) to bypass the internal PLL and directly drive the JESD204B serializer clock domain. This eases system board design when ultra-low-jitter clock distribution is critical and a clean RF-grade clock source is already available on the PCB.
AD9250BCPZ-250 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 250M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- JESD204B
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-LFCSP (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9250BCPZ-250 FAQ
1.How can I place an order for AD9250BCPZ-250 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9250BCPZ-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 AD9250BCPZ-250 reliable?
The price and inventory of AD9250BCPZ-250 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9250BCPZ-250 is usually 5 days.
3.What payment methods are accepted for AD9250BCPZ-250?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9250BCPZ-250 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9250BCPZ-250?
AD9250BCPZ-250 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9250BCPZ-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 AD9250BCPZ-250?
For technical support, including AD9250BCPZ-250 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9250BCPZ-250 requirements.
6.How does Aetrix verify that AD9250BCPZ-250 is sourced from the original manufacturer or authorized distributors?
All AD9250BCPZ-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 AD9250BCPZ-250 meets industry standards.
7.What is the process for return or replacement of AD9250BCPZ-250?
All AD9250BCPZ-250 units undergo pre-shipment inspection (PSI). If there is an issue with AD9250BCPZ-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 AD9250BCPZ-250 part is unused and in its original packaging.
Return procedure for AD9250BCPZ-250:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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