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Analog Devices Inc. AD9265BCPZ-105
- Part No.:
- AD9265BCPZ-105
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD9265BCPZ-105.pdf
- Description:
- IC ADC 16BIT PIPELINED 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,038
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Product details
Overview
AD9265BCPZ-105 from Analog Devices is a 16-bit, 105 MSPS analog-to-digital converter optimized for IF sampling in communications receivers. It features differential analog inputs with 650 MHz bandwidth, 1.8 V analog supply operation, on-chip dither, and programmable internal voltage reference. Its SNR of 79.0 dBFS and SFDR of 93 dBc at 70 MHz support LTE and W-CDMA baseband digitization.
For engineers reviewing the AD9265BCPZ-105 datasheet, AD9265BCPZ-105 pinout, AD9265BCPZ-105 application, or AD9265BCPZ-105 equivalent, this page delivers verified technical context, real-world timing and noise performance, package-specific layout guidance, and validated alternative options for multimode digital receiver design.
Technical Context
The AD9265BCPZ-105 implements a multistage differential pipelined ADC architecture with integrated output error correction logic, guaranteeing 16-bit accuracy and no missing codes across −40°C to +85°C. Its duty cycle stabilizer (DCS) compensates for input clock duty cycle variation, enabling robust operation with non-50% clocks up to 625 MHz.
Analog input handling includes a wide-bandwidth track-and-hold amplifier supporting 1 Vp-p to 2 Vp-p differential ranges and −154.3 dBm/Hz input noise at 70 MHz. Digital outputs are configurable as 1.8 V CMOS or LVDS (DDR), with pipeline latency fixed at 12.5 cycles in LVDS mode and 12 cycles in CMOS mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees monotonicity and no missing codes over full temperature range |
| Sampling Rate | 105 MSPS - supports Nyquist-sampled IF signals up to 52.5 MHz or undersampled RF bands |
| SNR @ 70 MHz | 79.0 dBFS - enables high-fidelity digitization of narrowband carriers in cellular infrastructure |
| SFDR @ 70 MHz | 93 dBc - suppresses spurious tones critical for adjacent-channel interference rejection |
| Analog Input Bandwidth | 650 MHz - allows direct sampling of first IF stages up to 300 MHz without external amplification |
| Power Consumption | 373 mW at 105 MSPS - balances performance and thermal budget in dense RF front ends |
| Digital Output Interface | 1.8 V CMOS or LVDS DDR - provides flexibility for FPGA interface compatibility and EMI control |
Pinout & Package
The AD9265BCPZ-105 is housed in a Pb-free, 48-lead LFCSP (CP-48-9) package with an exposed thermal pad that must be soldered to AGND for proper analog grounding and thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+, VIN− | Differential analog input | Accepts 1–2 Vp-p differential signal; 650 MHz bandwidth enables IF sampling without external gain blocks |
| CLK+, CLK− | Differential clock input | Supports CMOS/LVDS/LVPECL; DCS corrects duty cycle to maintain aperture jitter ≤0.07 ps rms |
| D0–D15 | Parallel data outputs | 16-bit DDR LVDS or CMOS outputs; latency = 12.5 cycles (LVDS) or 12 cycles (CMOS) |
| DCO | Data clock output | Source-synchronous clock aligned to data edges; essential for reliable capture by FPGA receivers |
| PDWN, OEB | Power and output control | Hardware-controlled power-down (<0.15 mW) and output enable/disable for system-level power gating |
| VREF, SENSE, RBIAS | Reference configuration | Supports internal 1.0 V reference or external bias; SENSE selects reference mode per Table 11 |
Key Features
| Feature | Design Value |
|---|---|
| On-chip dither | Improves SFDR by ≥10 dB at low-input-power conditions (e.g., −23 dBFS), critical for weak-signal detection in smart antenna systems |
| Duty cycle stabilizer (DCS) | Enables stable 16-bit performance with input clock duty cycles from 30% to 70%, eliminating need for external clock conditioning |
| Integer 1-to-8 clock divider | Allows flexible master clock sourcing (e.g., 840 MHz ÷ 8 = 105 MSPS), simplifying clock tree design in multi-ADC systems |
| Built-in self-test (BIST) | Verifies ADC core functionality without external stimulus-reduces test time and validation risk in production |
| Flexible reference architecture | Internal 1.0 V reference with ±12 mV error or external bias via RBIAS; supports both precision and cost-sensitive designs |
Applications
| Cellular Base Station Receiver | Software-Defined Radio (SDR) |
|---|---|
Use Scenario: Digitizing 70 MHz IF output from a quadrature downconverter in a 3G/LTE macrocell radio unit. IC Role / Device Role / Timing Role: Primary ADC capturing I/Q data streams at 105 MSPS with deterministic 12.5-cycle latency for real-time DSP alignment. Use Value: 79.0 dBFS SNR and 93 dBc SFDR ensure clean spectral representation for digital channel filtering and demodulation. |
Use Scenario: Front-end digitization in a reconfigurable SDR platform supporting GSM, W-CDMA, and TD-SCDMA waveforms. IC Role / Device Role / Timing Role: High-dynamic-range ADC with programmable clock divider and SPI-configurable output format (offset binary/twos complement). Use Value: Pin compatibility with AD9255 enables seamless migration between 16-bit and 14-bit resolution for multi-standard optimization. |
| Ultrasound Beamforming | Test & Measurement Equipment |
Use Scenario: Sampling echo return signals from phased-array transducers operating at 5–15 MHz center frequencies. IC Role / Device Role / Timing Role: Low-noise ADC with −154.3 dBm/Hz input noise floor and 650 MHz analog bandwidth for wideband pulse capture. Use Value: 16-bit resolution preserves fine amplitude gradations required for dynamic range >100 dB in medical imaging. |
Use Scenario: Digitizing intermediate frequency outputs in broadband spectrum analyzers and vector signal analyzers. IC Role / Device Role / Timing Role: High-SFDR ADC used in dual-channel configurations for I/Q acquisition with synchronized sampling clocks. Use Value: On-chip dither and BIST reduce calibration overhead and improve measurement repeatability across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9265BCPZ-125 | Higher sampling rate (125 MSPS); identical pinout, package, and feature set | Required for wider instantaneous bandwidth (>62.5 MHz) or higher IF sampling frequencies | Select when system clock architecture supports ≥125 MSPS and latency tolerance permits |
| AD9255BCPZ-105 | 14-bit resolution; pin-compatible but lower ENOB (12.3 bits vs. 12.8 bits at 70 MHz) | Used where 70+ dB SFDR suffices and cost/power reduction outweighs resolution trade-off | Choose for legacy migration paths or cost-sensitive multimode receivers with relaxed dynamic range |
Compared with AD9265BCPZ-125, the AD9265BCPZ-105 reduces power by 20 mW while maintaining identical noise floor and interface compatibility; versus AD9255BCPZ-105, it delivers +1.5-bit ENOB and +6 dB SFDR at 70 MHz-critical for LTE-A carrier aggregation.
Availability
AD9265BCPZ-105 is available at Aetrix Electronics and suitable for cellular infrastructure, software-defined radio, ultrasound imaging, and test equipment requiring stable component supply across extended industrial temperature ranges.
Supply support for AD9265BCPZ-105 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 technologies, headquartered in Norwood, MA.
The AD9265 product line delivers high-resolution, high-speed ADCs for communications and instrumentation, designed specifically to meet the dynamic range, power, and integration demands of modern IF-sampling architectures.
FAQ
What is the maximum analog input frequency supported by the AD9265BCPZ-105?
The AD9265BCPZ-105 supports analog input frequencies up to 300 MHz using IF sampling techniques, enabled by its 650 MHz differential analog input bandwidth and 16-bit pipeline architecture. This capability allows direct digitization of first IF signals without downconversion, reducing component count in receiver front ends. The AD9265BCPZ-105 maintains 79.0 dBFS SNR at 70 MHz and 75.6 dBFS at 200 MHz, confirming usable performance well beyond baseband.
Does the AD9265BCPZ-105 support both CMOS and LVDS digital outputs?
Yes, the AD9265BCPZ-105 supports configurable 1.8 V CMOS or LVDS DDR digital outputs via hardware pins (LVDS, LVDS_RS) or SPI register control. In LVDS mode, it delivers 290–400 mV differential output voltage with 1.15–1.35 V offset, meeting ANSI standards. CMOS mode provides rail-to-rail 1.8 V outputs with 1.75 V high-level voltage at 0.5 mA load. The AD9265BCPZ-105 uses the same pinout for both interfaces, simplifying PCB layout reuse.
How does the duty cycle stabilizer (DCS) function in the AD9265BCPZ-105?
The AD9265BCPZ-105's duty cycle stabilizer (DCS) dynamically adjusts internal clock timing to compensate for input clock duty cycle deviations from 50%, maintaining aperture jitter below 0.07 ps rms across 30%–70% duty cycles. This eliminates the need for external clock conditioners and ensures consistent 16-bit performance regardless of source clock quality. DCS is enabled by default and can be disabled via SPI Register 0x17 Bit 7; the AD9265BCPZ-105 retains full specification compliance with DCS active.
What power supply requirements does the AD9265BCPZ-105 have?
The AD9265BCPZ-105 requires three independent 1.8 V supplies: AVDD for analog circuitry (126–176 mA), DRVDD for digital outputs (14–49 mA depending on interface and load), and SVDD for SPI interface (1.7–3.5 V, typically 1.8 V). All supplies must be decoupled per the layout guidelines in the datasheet. The AD9265BCPZ-105 consumes 373 mW total at 105 MSPS with LVDS outputs, dropping to 0.15 mW in power-down mode.
Is the AD9265BCPZ-105 pin-compatible with other members of the AD9265 family?
Yes, the AD9265BCPZ-105 is fully pin-compatible with AD9265BCPZ-80 and AD9265BCPZ-125, sharing identical 48-lead LFCSP (CP-48-9) packaging, pin functions, and footprint. It is also pin-compatible with the 14-bit AD9255 family, enabling straightforward resolution scaling in existing designs. All variants use the same thermal pad grounding requirement and SPI register map, allowing hardware reuse and firmware portability across sampling rates and bit depths.
AD9265BCPZ-105 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):
- 105M
- 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-105 FAQ
1.How can I place an order for AD9265BCPZ-105 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9265BCPZ-105 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-105 reliable?
The price and inventory of AD9265BCPZ-105 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9265BCPZ-105 is usually 5 days.
3.What payment methods are accepted for AD9265BCPZ-105?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9265BCPZ-105 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9265BCPZ-105?
AD9265BCPZ-105 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9265BCPZ-105 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-105?
For technical support, including AD9265BCPZ-105 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9265BCPZ-105 requirements.
6.How does Aetrix verify that AD9265BCPZ-105 is sourced from the original manufacturer or authorized distributors?
All AD9265BCPZ-105 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-105 meets industry standards.
7.What is the process for return or replacement of AD9265BCPZ-105?
All AD9265BCPZ-105 units undergo pre-shipment inspection (PSI). If there is an issue with AD9265BCPZ-105, 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-105 part is unused and in its original packaging.
Return procedure for AD9265BCPZ-105:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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