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Analog Devices Inc. AD9265BCPZ-125
- Part No.:
- AD9265BCPZ-125
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD9265BCPZ-125.pdf
- Description:
- IC ADC 16BIT PIPELINED 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,703
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Product details
Overview
AD9265BCPZ-125 from Analog Devices is a 16-bit, 125 MSPS analog-to-digital converter with differential pipelined architecture, 650 MHz analog input bandwidth, 79.0 dBFS SNR at 70 MHz, and 1.8 V single-supply operation. It supports IF sampling up to 300 MHz and is used in multimode digital receivers for LTE, W-CDMA, and TD-SCDMA base stations.
For engineers reviewing the AD9265BCPZ-125 datasheet, AD9265BCPZ-125 pinout, AD9265BCPZ-125 application, or AD9265BCPZ-125 equivalent, key selection considerations include its 125 MSPS sampling rate, LVDS/CMOS DDR output flexibility, on-chip dither for SFDR enhancement, duty cycle stabilizer for clock jitter tolerance, and industrial temperature range (−40°C to +85°C).
Technical Context
The AD9265BCPZ-125 implements a multistage differential pipelined ADC core with integrated error correction logic, guaranteeing no missing codes across −40°C to +85°C. Its analog input stage features a track-and-hold amplifier with 650 MHz bandwidth and supports 1 Vp-p to 2 Vp-p differential input ranges via programmable internal reference.
It uses a proprietary differential clock interface with duty cycle stabilizer (DCS), enabling robust performance across wide input clock duty cycle variations. Output formatting (offset binary, two's complement, gray code) and functional modes (power-down, BIST, dither) are controlled via a 3-wire SPI interface compliant with standard serial port protocols.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full-scale linearity and no missing codes over industrial temperature range. |
| Max Sampling Rate | 125 MSPS - enables direct IF sampling of signals up to 300 MHz per Nyquist criterion. |
| SNR @ 70 MHz | 79.0 dBFS - defines dynamic range for high-fidelity signal capture in wireless receiver front-ends. |
| SFDR @ 70 MHz | 93 dBc - determines spurious-free resolution for multi-carrier LTE/W-CDMA channel separation. |
| Analog Input Bandwidth | 650 MHz - supports wideband RF sampling without external anti-alias filtering below 300 MHz. |
| Power Consumption | 373 mW @ 125 MSPS - optimized for power-constrained communications infrastructure with thermal pad grounding. |
| Digital Output Interface | LVDS or CMOS DDR - provides noise-immune high-speed data transfer compatible with FPGA/ASIC receivers. |
Pinout & Package
The AD9265BCPZ-125 is housed in a Pb-free, 48-lead LFCSP (CP-48-9) package with exposed thermal pad requiring solder connection to AGND for proper analog performance and thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+, VIN− | Differential analog input | Accepts 650 MHz bandwidth RF/IF signals; requires matched 100 Ω termination for optimal SNR. |
| CLK+, CLK− | Differential clock input | Drives internal conversion cycles; DCS circuit compensates for duty cycle variation to maintain timing accuracy. |
| D0–D15 | Parallel data outputs | 16-bit DDR outputs in LVDS (interleaved pairs) or CMOS mode; timing referenced to DCO edge. |
| DCO | Data clock output | Source-synchronous clock for latch alignment; supports programmable delay via SPI Register 0x17. |
| PDWN, OEB | Power and output control | Enable low-power standby (54 mW) or full power-down (0.05 mW); OEB gates output drivers independently. |
| SCLK/DFS, SDIO/DCS, CSB | SPI interface | 3-wire serial port for configuration of reference mode, dither, output format, and test functions. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip dither | Improves SFDR by ≥10 dB at −23 dBFS input level, critical for low-amplitude signal detection in wideband receivers. |
| Duty cycle stabilizer (DCS) | Compensates for clock duty cycle deviations >40%–60%, eliminating need for external clock conditioning circuits. |
| Flexible voltage reference | Programmable internal 1.0 V reference or external reference support simplifies system-level voltage scaling and calibration. |
| Built-in self-test (BIST) | Verifies ADC functionality without external stimulus, reducing test time and fixture cost in production environments. |
| Integer clock divider (1–8) | Allows use of higher-frequency, lower-jitter master clocks while maintaining precise 125 MSPS sampling rate. |
Applications
| Base Station Receiver | Ultrasound Imaging Front-End |
|---|---|
Use Scenario: Multimode cellular base station digitizing 70 MHz IF signals from multiple antenna paths in LTE/W-CDMA systems. IC Role / Device Role / Timing Role: High-speed ADC capturing wideband IF samples with minimal quantization noise and harmonic distortion. Use Value: 79.0 dBFS SNR and 93 dBc SFDR enable simultaneous reception of adjacent channels without interference. | Use Scenario: Digital beamforming ultrasound system acquiring 10–15 MHz echo signals from phased-array transducers. IC Role / Device Role / Timing Role: Precision digitizer converting analog RF echoes into 16-bit samples for real-time beam synthesis. Use Value: 650 MHz analog input bandwidth preserves pulse fidelity; 125 MSPS sampling satisfies Nyquist for 60 MHz envelope bandwidth. |
| Software-Defined Radio (SDR) | Test & Measurement Instrumentation |
Use Scenario: Reconfigurable SDR platform supporting GSM, EDGE, WiMAX, and TD-SCDMA waveforms via FPGA-based digital processing. IC Role / Device Role / Timing Role: Universal ADC providing flexible input range (1–2 Vp-p) and programmable output format for multi-standard compatibility. Use Value: SPI-configurable dither, BIST, and clock divider allow runtime adaptation to varying signal dynamics and test conditions. | Use Scenario: High-resolution spectrum analyzer digitizing broadband RF inputs up to 200 MHz for spectral purity analysis. IC Role / Device Role / Timing Role: Reference-grade ADC delivering verified ENOB of 12.8 bits at 70 MHz for calibrated measurement traceability. Use Value: Guaranteed no missing codes and ±0.25% FSR gain error ensure amplitude accuracy required for compliance testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9268BCPZ-125 | Dual-channel 16-bit ADC, same 125 MSPS rate, identical pinout and SPI register map; 375 mW power at 125 MSPS. | Supports I/Q sampling architectures; not suitable for single-channel high-SNR applications where channel isolation is unnecessary. | Select AD9268BCPZ-125 only when dual independent ADC channels are required for complex modulation schemes. |
| ADS54J60IRGCT | 16-bit, 900 MSPS ADC with JESD204B interface; 1.25 W power; no on-chip dither or DCS; requires external clock conditioner. | Targets ultra-wideband radar and millimeter-wave systems; lacks integrated reference and BIST, increasing board-level complexity. | Choose ADS54J60IRGCT only when >200 MSPS sampling and serial interface are mandatory, accepting higher power and design overhead. |
Compared with AD9265BCPZ-125, AD9268BCPZ-125 offers dual-channel capability at nearly identical power and performance, while ADS54J60IRGCT delivers much higher speed but sacrifices integration, power efficiency, and ease of use in communications IF sampling.
Availability
AD9265BCPZ-125 is available at Aetrix Electronics and suitable for base station receivers, ultrasound imaging systems, software-defined radios, and test instrumentation requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature operation.
Supply support for AD9265BCPZ-125 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, headquartered in Norwood, MA, with R&D and manufacturing facilities worldwide.
The AD9265 belongs to Analog Devices' high-speed data converter product line, designed specifically for communications infrastructure applications demanding high dynamic range, low power, and seamless integration into FPGA-based receiver platforms.
FAQ
What is the maximum analog input frequency supported by the AD9265BCPZ-125?
The AD9265BCPZ-125 supports analog input frequencies up to 300 MHz using IF sampling techniques, enabled by its 650 MHz analog input bandwidth and 125 MSPS sampling rate. This allows undersampling of RF bands without violating Nyquist criteria for band-limited signals. The device maintains 79.0 dBFS SNR at 70 MHz and 77.3 dBFS at full temperature range, confirming usable performance well beyond baseband.
Does the AD9265BCPZ-125 support both CMOS and LVDS digital outputs?
Yes, the AD9265BCPZ-125 supports both 1.8 V CMOS and LVDS DDR digital outputs, selectable via the LVDS and LVDS_RS pins or SPI configuration. In LVDS mode, it delivers interleaved differential pairs with 290–400 mV differential output voltage; in CMOS mode, it provides parallel 16-bit outputs with 1.75 V high-level voltage at 0.5 mA load. Output format (offset binary, two's complement, gray code) is also configurable.
How does the duty cycle stabilizer (DCS) function in the AD9265BCPZ-125 improve system performance?
The duty cycle stabilizer (DCS) in the AD9265BCPZ-125 actively corrects input clock duty cycle deviations, allowing reliable operation with clocks ranging from 40% to 60% duty cycle without external conditioning. This reduces timing jitter-induced aperture uncertainty to just 0.07 ps rms, preserving SNR and SFDR. DCS is enabled by default and can be disabled via SPI Register 0x17 Bit 7 if external clock conditioning is used.
What power-saving modes are available on the AD9265BCPZ-125?
The AD9265BCPZ-125 offers three power-saving states: normal operation (373 mW at 125 MSPS), standby mode (54 mW with CLK inactive), and full power-down mode (0.05 mW). Standby retains register settings and reference bias; power-down resets internal state and disables all analog/digital blocks. Both modes are controlled via the PDWN pin or SPI Register 0x08, enabling rapid wake-up (<500 μs) for burst-mode applications.
Is the AD9265BCPZ-125 pin-compatible with other members of the AD926x family?
Yes, the AD9265BCPZ-125 is pin-compatible with the AD9255 (14-bit, 125 MSPS) and shares the same 48-lead LFCSP package footprint and pin assignments. This enables straightforward migration from 16-bit to 14-bit resolution without PCB redesign. However, it is not pin-compatible with the AD9268BCPZ-125 (dual-channel), which uses identical packaging but different pin functions for second-channel signals.
AD9265BCPZ-125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 125M
- 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:
- External, 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:
- 48-LFCSP-VQ (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9265BCPZ-125 FAQ
1.How can I place an order for AD9265BCPZ-125 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9265BCPZ-125 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 AD9265BCPZ-125 reliable?
The price and inventory of AD9265BCPZ-125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9265BCPZ-125 is usually 5 days.
3.What payment methods are accepted for AD9265BCPZ-125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9265BCPZ-125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9265BCPZ-125?
AD9265BCPZ-125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9265BCPZ-125 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 AD9265BCPZ-125?
For technical support, including AD9265BCPZ-125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9265BCPZ-125 requirements.
6.How does Aetrix verify that AD9265BCPZ-125 is sourced from the original manufacturer or authorized distributors?
All AD9265BCPZ-125 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 AD9265BCPZ-125 meets industry standards.
7.What is the process for return or replacement of AD9265BCPZ-125?
All AD9265BCPZ-125 units undergo pre-shipment inspection (PSI). If there is an issue with AD9265BCPZ-125, 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 AD9265BCPZ-125 part is unused and in its original packaging.
Return procedure for AD9265BCPZ-125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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