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Analog Devices Inc. AD9648BCPZRL7-125
- Part No.:
- AD9648BCPZRL7-125
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD9648BCPZRL7-125.pdf
- Description:
- IC ADC 14BIT PIPELINED 64LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,330
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Product details
Overview
AD9648BCPZRL7-125 from Analog Devices is a dual-channel, 14-bit, 125 MSPS analog-to-digital converter operating from a single 1.8 V analog supply. It features differential analog inputs with 650 MHz bandwidth, on-chip voltage reference and sample-and-hold, and supports 1.8 V CMOS or LVDS digital outputs. It delivers 74.5 dBFS SNR and 91 dBc SFDR at 70 MHz input, targeting IF sampling in communications receivers.
For engineers reviewing the AD9648BCPZRL7-125 datasheet, AD9648BCPZRL7-125 pinout, AD9648BCPZRL7-125 application, or AD9648BCPZRL7-125 equivalent, key selection considerations include dual-channel interleaving latency (16/16.5 cycles), programmable clock divider (1–8), DCO/data alignment control, and support for deterministic test pattern generation via SPI-critical for radar, ultrasound, and multistandard wireless baseband verification.
Technical Context
The AD9648BCPZRL7-125 employs a multistage differential pipeline architecture with output error correction logic to guarantee 14-bit accuracy and no missing codes across −40°C to +85°C. Its patented sample-and-hold maintains performance up to 200 MHz IF frequencies while enabling low-power operation (106 mW/channel @ 125 MSPS).
Dual independent ADC cores share a common differential clock input and support synchronized operation via SYNC pin. Digital outputs are configurable as offset binary, Gray code, or twos complement, with optional multiplexing onto a single bus and programmable duty cycle stabilizer (DCS) for robust clock jitter tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - guarantees monotonicity and no missing codes over full temperature range |
| Sampling Rate | 125 MSPS - maximum sustained conversion rate with full AC performance |
| SNR @ 70 MHz | 74.5 dBFS - defines dynamic range for high-frequency IF digitization in LTE/W-CDMA receivers |
| SFDR @ 70 MHz | 91 dBc - determines spurious-free signal fidelity in dense spectral environments |
| Analog Input BW | 650 MHz - enables direct RF sampling up to third Nyquist zone for SDR front ends |
| Power per Channel | 106 mW @ 125 MSPS - enables thermal-aware dual-ADC integration in compact portable medical or test equipment |
| Digital Output Interface | 1.8 V CMOS or LVDS - allows direct interfacing to FPGA I/O banks without level-shifting |
Pinout & Package
The AD9648BCPZRL7-125 is housed in a 64-lead RoHS-compliant LFCSP (9 mm × 9 mm) with exposed thermal pad requiring solder connection to AGND for proper thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK+, CLK− | Differential clock input | Controls all internal conversion cycles; accepts CMOS/LVDS/LVPECL; DCS option corrects duty cycle variation |
| VIN+A, VIN−A / VIN+B, VIN−B | Differential analog inputs (Ch A/B) | 650 MHz bandwidth; 2 V p-p full-scale; require matched 50 Ω termination for optimal SFDR |
| D0A–D13A, D0B–D13B | Parallel digital outputs | 14-bit data per channel; LSB-to-MSB ordering; CMOS or LVDS selectable via DRVDD and SPI |
| DCOA, DCOB | Data clock outputs | Source-synchronous timing references for latch alignment; programmable delay via SPI Register 0x17 |
| SYNC | Channel synchronization input | Enables deterministic phase alignment between dual channels for I/Q or time-interleaved applications |
| SCLK/DFS, SDIO/DCS, CSB | SPI interface pins | Support configuration of output format, clock divider, power modes, and test patterns without external microcontroller |
Key Features
| Feature | Design Value |
|---|---|
| On-chip voltage reference | 1.0 V ±2% output with 2 mV load regulation - eliminates external reference IC and reduces BOM count |
| Programmable integer clock divider | 1-to-8 division ratio - enables flexible system clock tree design using a single high-frequency oscillator |
| Built-in test pattern generation | Deterministic, pseudorandom, and user-defined patterns via SPI - accelerates production testing and board-level validation |
| Data output multiplexing | Single-bus interleaved mode - reduces FPGA pin count and PCB routing complexity in space-constrained designs |
| Power-down and standby modes | 2.0 mW power-down / 108–120 mW standby - supports dynamic power scaling in battery-powered handheld scopes and ultrasound probes |
Applications
| Radar/LIDAR Signal Acquisition | Ultrasound Beamforming |
|---|---|
Use Scenario: Digitizing pulsed RF return signals in FMCW radar or time-of-flight LIDAR systems with wide instantaneous bandwidth. IC Role / Device Role / Timing Role: Dual-channel ADC capturing I/Q baseband or time-aligned echo samples at 125 MSPS with sub-0.14 ps RMS aperture jitter. Use Value: 74.5 dBFS SNR and 91 dBc SFDR preserve small-signal target resolution amid strong clutter; 650 MHz analog BW supports direct sampling of 2nd/3rd Nyquist zone signals. |
Use Scenario: High-channel-count receive beamforming in portable ultrasound systems requiring low power and compact form factor. IC Role / Device Role / Timing Role: Simultaneous sampling of two transducer element groups with synchronized latency (16/16.5 cycles) for real-time phase alignment. Use Value: 106 mW/channel enables thermal-safe integration into handheld probes; LVDS outputs reduce EMI and support long trace runs to FPGA processing units. |
| Multi-Standard Wireless Baseband | Smart Antenna Receiver Front End |
Use Scenario: Diversity receiver supporting GSM, W-CDMA, LTE, and TD-SCDMA in compact small-cell or repeater hardware. IC Role / Device Role / Timing Role: Dual ADC digitizing two antenna paths for MRC or interference cancellation, configured via SPI for format and clock division. Use Value: Pin compatibility with AD9258/AD9628 family allows scalable migration from 12- to 14-bit resolution without PCB redesign; 1.8 V supplies simplify power architecture. |
Use Scenario: Real-time adaptive nulling and direction-of-arrival estimation using multi-element antenna arrays in 5G NR infrastructure. IC Role / Device Role / Timing Role: High-fidelity digitization of correlated RF paths with precise inter-channel gain/phase matching (±0.58% FSR offset, ±4.0% FSR gain error). Use Value: Guaranteed no missing codes and <±0.5 LSB DNL ensure linear amplitude response critical for DOA algorithms; SYNC pin enables sub-cycle channel alignment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 14-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9648BCPZ-105 | Lower max sampling rate (105 MSPS); identical pinout, package, and feature set | Targeted at cost-sensitive or lower-bandwidth IF sampling where 125 MSPS is not required | Select when system clock constraints or thermal budget preclude 125 MSPS operation |
| AD9650BCPZ-125 | 16-bit resolution, same 125 MSPS rate, identical LFCSP-64 package and pinout | Higher dynamic range needed for demanding radar or scientific instrumentation | Choose for applications requiring >14-bit ENOB at 70 MHz (e.g., high-resolution spectrum analysis) |
Compared with AD9648BCPZ-105, the AD9648BCPZRL7-125 provides 20 MSPS higher throughput without layout changes; versus AD9650BCPZ-125, it trades 2 bits of resolution for lower power (106 vs. 145 mW/channel) and reduced FPGA resource usage due to narrower data bus.
Availability
AD9648BCPZRL7-125 is available at Aetrix Electronics and suitable for radar signal acquisition, portable ultrasound imaging, multi-standard wireless baseband, smart antenna receivers, and IF sampling systems requiring stable component supply and long-term industrial-grade availability.
Supply support for AD9648BCPZRL7-125 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, serving industrial, automotive, communications, and healthcare markets with precision data conversion solutions.
The AD9648 is part of Analog Devices' high-speed ADC product line designed specifically for IF sampling, software-defined radio, and broadband instrumentation-emphasizing low power, integrated features, and seamless migration across bit-depth and speed grades.
FAQ
What is the guaranteed operating temperature range for the AD9648BCPZRL7-125?
The AD9648BCPZRL7-125 is specified over the industrial temperature range of −40°C to +85°C. All DC and AC specifications-including SNR, SFDR, DNL, and INL-are guaranteed across this full range, with no missing codes ensured under all conditions. Thermal performance relies on proper soldering of the exposed paddle to AGND per JEDEC JESD51-7 guidelines.
Does the AD9648BCPZRL7-125 support both CMOS and LVDS digital outputs simultaneously?
No, the AD9648BCPZRL7-125 supports either 1.8 V CMOS or LVDS outputs-not both concurrently. Output type is selected by the DRVDD supply voltage and SPI-configurable mode bits. CMOS mode draws 22.5 mA (typ) from DRVDD, while LVDS mode draws 65.0 mA (typ), reflecting the different drive requirements and termination needs.
How is channel synchronization achieved in the AD9648BCPZRL7-125?
Channel synchronization in the AD9648BCPZRL7-125 is controlled via the dedicated SYNC input pin. When asserted, SYNC resets the internal pipeline stages of both ADC cores simultaneously, ensuring deterministic phase alignment between Channel A and Channel B outputs. This capability is essential for I/Q demodulation and time-interleaved sampling architectures.
What is the purpose of the RBIAS pin on the AD9648BCPZRL7-125?
The RBIAS pin on the AD9648BCPZRL7-125 connects to a 10 kΩ (1% tolerance) resistor to AGND, setting the bias current for the internal reference amplifier. This external resistor ensures stable operation of the on-chip 1.0 V reference and sample-and-hold circuitry. Omitting or misvaluing this resistor degrades SNR and causes gain drift beyond datasheet limits.
Can the AD9648BCPZRL7-125 generate custom test patterns without an external processor?
Yes, the AD9648BCPZRL7-125 supports built-in deterministic and pseudorandom test pattern generation entirely through its serial port interface (SPI). Users can also load custom 14-bit patterns via SPI Register writes, enabling self-contained production testing, loopback diagnostics, and board-level validation without host MCU involvement.
AD9648BCPZRL7-125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 64-VFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 125M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel, Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- External, 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:
- 64-LFCSP-VQ (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9648BCPZRL7-125 FAQ
1.How can I place an order for AD9648BCPZRL7-125 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9648BCPZRL7-125 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 AD9648BCPZRL7-125 reliable?
The price and inventory of AD9648BCPZRL7-125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9648BCPZRL7-125 is usually 5 days.
3.What payment methods are accepted for AD9648BCPZRL7-125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9648BCPZRL7-125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9648BCPZRL7-125?
AD9648BCPZRL7-125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9648BCPZRL7-125 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 AD9648BCPZRL7-125?
For technical support, including AD9648BCPZRL7-125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9648BCPZRL7-125 requirements.
6.How does Aetrix verify that AD9648BCPZRL7-125 is sourced from the original manufacturer or authorized distributors?
All AD9648BCPZRL7-125 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 AD9648BCPZRL7-125 meets industry standards.
7.What is the process for return or replacement of AD9648BCPZRL7-125?
All AD9648BCPZRL7-125 units undergo pre-shipment inspection (PSI). If there is an issue with AD9648BCPZRL7-125, 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 AD9648BCPZRL7-125 part is unused and in its original packaging.
Return procedure for AD9648BCPZRL7-125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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