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Analog Devices Inc. AD9246BCPZ-125
- Part No.:
- AD9246BCPZ-125
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD9246BCPZ-125.pdf
- Description:
- IC ADC 14BIT PIPELINED 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,593
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Product details
Overview
AD9246BCPZ-125 from Analog Devices is a 14-bit, 125 MSPS analog-to-digital converter operating from a single 1.8 V analog supply with 1.8 V to 3.3 V digital output drivers. It features a differential input with 650 MHz bandwidth, on-chip voltage reference and sample-and-hold amplifier, and delivers 71.7 dBc SNR at 70 MHz input. It is used in IF sampling for communications receivers and ultrasound equipment.
For engineers reviewing the AD9246BCPZ-125 datasheet, AD9246BCPZ-125 pinout, AD9246BCPZ-125 application, or AD9246BCPZ-125 equivalent, key selection criteria include guaranteed no missing codes over −40°C to +85°C, DNL of ±0.4 LSB (25°C), 395 mW power consumption at 125 MSPS, and support for offset binary/Gray/twos complement data formats.
Technical Context
The AD9246BCPZ-125 employs a multistage differential pipeline architecture with output error correction logic to achieve 14-bit accuracy at full 125 MSPS throughput while ensuring no missing codes across temperature. Its patented differential sample-and-hold amplifier supports flexible analog input ranges (1 V p-p to 2 V p-p) and maintains performance up to 225 MHz input frequency.
A duty cycle stabilizer (DCS) compensates for clock duty cycle variations without degrading AC performance, and a standard SPI-compatible serial port enables configuration of data format, DCS enable, power-down mode, and reference selection. The device uses separate AVDD (1.8 V) and DRVDD (1.8–3.3 V) supplies to decouple analog and digital domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - guarantees monotonicity and ≥16,384 distinct output codes for high-fidelity signal digitization. |
| Max Sample Rate | 125 MSPS - supports Nyquist-limited baseband capture up to 62.5 MHz or undersampling of RF/IF signals beyond 100 MHz. |
| SNR @ 70 MHz | 71.7 dBc - enables >11.5 ENOB for demanding IF sampling in CDMA-One and IMT-2000 receivers. |
| SFDR @ 70 MHz | 85 dBc - suppresses spurious content sufficiently for multi-carrier WCDMA and LTE adjacent-channel rejection. |
| Power @ 125 MSPS | 395 mW (DRVDD = 3.3 V) - balances performance and thermal load in space-constrained battery-powered instruments. |
| Differential Input BW | 650 MHz - allows direct sampling of wideband IF signals without external amplification or filtering degradation. |
| DNL (25°C) | ±0.4 LSB - ensures minimal code-width variation critical for histogram-based measurement accuracy in scopemeters. |
Pinout & Package
The AD9246BCPZ-125 is housed in a 48-lead LFCSP_VQ package (7 mm × 7 mm × 0.85 mm) with exposed thermal pad (Pin 0) soldered to AGND for optimal thermal performance and EMI control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D0 (LSB) to D13 (MSB) | Digital output data bus | 14-bit parallel CMOS outputs aligned to DCO edge; supports offset binary, Gray, or twos complement formatting. |
| CLK+, CLK− | Differential clock input | Accepts CMOS/LVDS/LVPECL; internal common-mode bias at 1.2 V enables robust timing acquisition with jitter < 0.1 ps rms. |
| VIN+, VIN− | Differential analog input | 650 MHz bandwidth; supports 1–2 V p-p range with user-selectable common-mode voltage via REFT/REFB pins. |
| DRVDD, DRGND | Digital output power domain | Independent 1.8–3.3 V supply allows interfacing with FPGA I/O banks or ASIC logic without level-shifting. |
| AVDD, AGND | Analog core power domain | 1.8 V only; strict separation from digital ground prevents noise coupling into sensitive analog front-end. |
| SDIO/DCS, SCLK/DFS, CSB | 3-wire SPI interface | Configures data format, DCS enable, power-down, and reference mode; operates up to 25 MHz clock rate. |
| DCO | Data output clock | Source-synchronous clock referenced to data valid window; eliminates setup/hold timing margin uncertainty. |
| OEB | Output enable (active low) | Tri-states D0–D13 and DCO for multiplexed bus sharing or low-power idle states. |
Key Features
| Feature | Design Value |
|---|---|
| Single 1.8 V analog supply | Reduces system-level power conversion complexity and improves PSRR vs. dual-supply ADCs. |
| Duty cycle stabilizer (DCS) | Maintains SNR/SFDR performance across 40%–60% clock duty cycle variation-critical for non-ideal clock sources. |
| On-chip voltage reference | 1.0 V nominal output with ±35 mV error over temperature; eliminates external reference IC and associated layout sensitivity. |
| Programmable clock/data alignment | Adjusts DCO phase relative to data edges via SPI register, simplifying timing closure with FPGA capture logic. |
| Built-in test pattern generation | Enables production testing without external stimulus; supports checkerboard, ramp, and custom patterns. |
Applications
| Ultrasound Beamforming | IF Sampling in Cellular Base Stations |
|---|---|
Use Scenario: Digitizing 10–20 MHz receive channel signals from phased-array transducers with real-time beam steering. IC Role / Device Role / Timing Role: High-speed ADC capturing echo return waveforms with sub-nanosecond aperture jitter for precise time-of-flight calculation. Use Value: 71.7 dBc SNR at 70 MHz input preserves dynamic range needed to resolve weak tissue reflections amid strong near-field clutter. |
Use Scenario: Direct sampling of 70–140 MHz IF signals in CDMA-One and IMT-2000 basestation receivers. IC Role / Device Role / Timing Role: Wideband digitizer enabling software-defined radio architectures with flexible channelization and digital downconversion. Use Value: 85 dBc SFDR suppresses intermodulation products from multi-carrier interference, meeting 3GPP adjacent-channel leakage requirements. |
| Hand-Held Scopemeters | Low-Cost Digital Oscilloscopes |
Use Scenario: Portable field instruments requiring battery operation and real-time waveform display at ≥100 MS/s. IC Role / Device Role / Timing Role: Core digitizer with integrated reference and low-power design enabling >4-hour runtime on Li-ion packs. Use Value: 395 mW total power at 125 MSPS reduces thermal dissipation in sealed enclosures and extends battery life versus prior-generation 14-bit ADCs. |
Use Scenario: Entry-level bench oscilloscopes targeting ≤500 MHz analog bandwidth with 1 Mpts memory depth. IC Role / Device Role / Timing Role: High-fidelity front-end ADC supporting 125 MSPS interleaved or single-shot acquisition modes. Use Value: Guaranteed no missing codes and ±0.4 LSB DNL ensure accurate amplitude measurement and histogram-based parameter extraction (e.g., rise time, overshoot). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9233BCPZ-125 | 12-bit resolution, same 48-lead LFCSP_VQ package and pinout; lower power (245 mW), reduced SFDR (78 dBc @ 70 MHz). | Lower dynamic range suitable for cost-sensitive instrumentation where 12-bit ENOB suffices. | Select when system SNR requirement is ≤68 dB and board layout reuse is prioritized. |
| ADS5463IPFP | 13-bit, 500 MSPS; requires 3.3 V analog supply and external reference; higher power (1.4 W); LVDS outputs only. | Targeted at ultra-wideband radar and high-end comms where sampling rate >250 MSPS is mandatory. | Choose only if 500 MSPS is required and thermal/power budget permits significant increase over AD9246BCPZ-125. |
Compared with AD9246BCPZ-125, AD9233BCPZ-125 offers pin-compatible migration path with lower resolution and power, while ADS5463IPFP trades integration and efficiency for raw speed-making AD9246BCPZ-125 optimal for balanced IF sampling where 14-bit fidelity, 125 MSPS, and 395 mW coexist.
Availability
AD9246BCPZ-125 is available at Aetrix Electronics and suitable for ultrasound equipment, IF sampling in communications receivers, and battery-powered instruments requiring stable component supply and industrial-temperature-grade performance.
Supply support for AD9246BCPZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD9246 product line delivers high-speed, low-power ADCs optimized for communications infrastructure, medical imaging, and portable test equipment-designed to replace discrete signal chain solutions with monolithic, calibrated performance.
FAQ
What is the maximum input frequency supported by the AD9246BCPZ-125 analog front-end?
The AD9246BCPZ-125 features a differential sample-and-hold amplifier with 650 MHz small-signal bandwidth, enabling usable analog input frequencies up to 225 MHz while maintaining specified SNR and SFDR. At 170 MHz input, it achieves 70.8 dBc SNR and 83 dBc SFDR per the datasheet's typical performance curves.
Does the AD9246BCPZ-125 require an external voltage reference?
No-the AD9246BCPZ-125 integrates a precision 1.0 V voltage reference with ±35 mV output error over temperature. External reference is optional via the VREF, REFT, and REFB pins; default operation uses the internal reference, eliminating BOM cost and layout sensitivity.
Can the AD9246BCPZ-125 operate with a 1.8 V digital output supply?
Yes-the AD9246BCPZ-125 supports DRVDD from 1.8 V to 3.3 V. At 1.8 V DRVDD, its digital outputs deliver VOH ≥ 1.75 V (IOH = 0.5 mA) and VOL ≤ 0.2 V (IOL = 1.6 mA), ensuring compatibility with 1.8 V FPGA or ASIC I/O standards without level shifters.
How does the duty cycle stabilizer (DCS) affect timing margins in the AD9246BCPZ-125?
The DCS in the AD9246BCPZ-125 actively corrects clock duty cycle deviations, allowing reliable operation with input clocks ranging from 40% to 60% duty cycle while maintaining aperture jitter ≤0.1 ps rms. This relaxes clock generator design constraints and avoids timing closure issues in FPGA-based capture systems.
Is the AD9246BCPZ-125 pin-compatible with other members of the AD9246 family?
Yes-all AD9246 speed grades (AD9246BCPZ-80, -105, -125) share identical 48-lead LFCSP_VQ packaging and pinout. System designs can scale sampling rate via firmware and clocking changes without PCB revision, provided thermal and power delivery margins accommodate the higher 395 mW at 125 MSPS.
AD9246BCPZ-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:
- 14
- Sampling Rate (Per Second):
- 125M
- Number of Inputs:
- 1
- Input Type:
- Differential, Single Ended
- Data Interface:
- 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 ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-LFCSP-VQ (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9246BCPZ-125 FAQ
1.How can I place an order for AD9246BCPZ-125 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9246BCPZ-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 AD9246BCPZ-125 reliable?
The price and inventory of AD9246BCPZ-125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9246BCPZ-125 is usually 5 days.
3.What payment methods are accepted for AD9246BCPZ-125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9246BCPZ-125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9246BCPZ-125?
AD9246BCPZ-125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9246BCPZ-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 AD9246BCPZ-125?
For technical support, including AD9246BCPZ-125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9246BCPZ-125 requirements.
6.How does Aetrix verify that AD9246BCPZ-125 is sourced from the original manufacturer or authorized distributors?
All AD9246BCPZ-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 AD9246BCPZ-125 meets industry standards.
7.What is the process for return or replacement of AD9246BCPZ-125?
All AD9246BCPZ-125 units undergo pre-shipment inspection (PSI). If there is an issue with AD9246BCPZ-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 AD9246BCPZ-125 part is unused and in its original packaging.
Return procedure for AD9246BCPZ-125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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