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Analog Devices Inc. AD9246BCPZRL7-125
- Part No.:
- AD9246BCPZRL7-125
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD9246BCPZRL7-125.pdf
- Description:
- IC ADC 14BIT PIPELINED 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,770
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Product details
Overview
AD9246BCPZRL7-125 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 driver supply. It features a differential input with 650 MHz bandwidth, on-chip voltage reference and sample-and-hold amplifier, and delivers 71.7 dBc SNR and 85 dBc SFDR at 70 MHz input. It is used in IF sampling for communications receivers and ultrasound equipment.
For engineers reviewing the AD9246BCPZRL7-125 datasheet, AD9246BCPZRL7-125 pinout, AD9246BCPZRL7-125 application, or AD9246BCPZRL7-125 equivalent, key selection considerations include its 125 MSPS sampling rate, 14-bit resolution with guaranteed no missing codes, differential clock interface supporting CMOS/LVDS/LVPECL, DCO timing support, and industrial temperature range (−40°C to +85°C) operation in the 48-lead LFCSP_VQ package.
Technical Context
The AD9246BCPZRL7-125 employs a multistage differential pipeline architecture with output error correction logic to achieve 14-bit accuracy at full 125 MSPS throughput. Its patented sample-and-hold amplifier supports input frequencies up to 225 MHz and enables flexible analog input ranges (1 V p-p to 2 V p-p) with user-selectable common-mode offsets.
A built-in duty cycle stabilizer (DCS) maintains ADC performance across wide clock duty cycle variations (e.g., 30%–70%), while the serial port interface (SPI-compatible) allows runtime configuration of data format (offset binary/Gray/twos complement), DCS enable/disable, power-down mode, and reference mode selection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - guarantees monotonicity and no missing codes over full temperature range. |
| Max Sampling Rate | 125 MSPS - supports Nyquist sampling of signals up to 62.5 MHz or undersampling of IF signals beyond 100 MHz. |
| SNR @ 70 MHz | 71.7 dBc - enables high-fidelity digitization of wideband communication signals with low quantization noise floor. |
| SFDR @ 70 MHz | 85 dBc - ensures strong spurious-free dynamic range for multi-carrier and broadband RF applications. |
| Analog Input BW | 650 MHz - supports direct sampling of high-frequency IF stages without external amplification or filtering. |
| Power @ 125 MSPS | 395 mW - low power consumption enables use in battery-powered instruments and thermally constrained systems. |
| Differential Clock | CMOS/LVDS/LVPECL compatible - simplifies integration with diverse clock sources and FPGA/ASIC interfaces. |
| Operating Temp | −40°C to +85°C - qualified for industrial and medical environments including portable ultrasound and field-deployed test gear. |
Pinout & Package
The AD9246BCPZRL7-125 is housed in a 48-lead LFCSP_VQ (7 mm × 7 mm, 0.85 mm height) package 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; level-shifted by DRVDD (1.8 V–3.3 V) for direct FPGA/ASIC interfacing. |
| CLK+, CLK− | Differential clock input | Accepts CMOS/LVDS/LVPECL; internal biasing enables single-ended drive if needed; DCS improves jitter tolerance. |
| VIN+, VIN− | Differential analog input | 650 MHz bandwidth; supports 1 V p-p to 2 V p-p full-scale range; requires external termination for optimal linearity. |
| REFT, REFB, VREF, SENSE | Reference subsystem | Configurable internal 1.0 V reference or external reference; SENSE selects mode; REFT/REFB provide differential reference path. |
| DCO | Data clock output | Source-synchronous clock aligned to data edges; critical for timing-critical FPGA capture without external delay compensation. |
| SDIO/DCS, SCLK/DFS, CSB | Serial port interface | 3-wire SPI-compatible interface for configuring data format, DCS, power modes, and reference settings during operation. |
| PDWN, OEB | Control inputs | Active-low PDWN reduces power to 1.8 mW; OEB enables/disables output drivers to prevent bus contention. |
| RBIAS | Bias resistor connection | 10 kΩ resistor to AGND sets internal bias current; required for proper SHA operation and DC accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Single 1.8 V analog supply | Reduces system power delivery complexity and eliminates need for multiple analog rail regulators. |
| Separate DRVDD (1.8–3.3 V) | Enables direct interfacing with mixed-voltage logic families without level translators. |
| On-chip voltage reference | Eliminates external reference IC and associated decoupling, reducing BOM count and layout area. |
| Programmable data format | Runtime selection among offset binary, Gray code, or twos complement via SPI-simplifies firmware adaptation across platforms. |
| Flexible analog input range | 1 V p-p to 2 V p-p span adjustment accommodates varying signal chain gain without redesigning front-end attenuation. |
| Integrated duty cycle stabilizer | Compensates for clock asymmetry from PLLs or long PCB traces, preserving AC performance without external clock cleanup. |
Applications
| Ultrasound Imaging Front-End | IF Sampling in Cellular Base Stations |
|---|---|
Use Scenario: Digitizing 20–50 MHz echo return signals from phased-array transducers in portable ultrasound systems. IC Role / Device Role / Timing Role: High-speed ADC capturing time-domain RF echoes with minimal latency and distortion for beamforming processing. Use Value: 71.7 dBc SNR and 85 dBc SFDR preserve weak tissue boundary signals amid strong clutter; 125 MSPS enables 25 MHz baseband sampling with oversampling margin. | Use Scenario: Downconverting and digitizing CDMA-One or IMT-2000 IF signals (e.g., 70–140 MHz) in multi-carrier receiver chains. IC Role / Device Role / Timing Role: Wideband IF sampling ADC feeding FPGA-based digital downconverters and channelizers. Use Value: 650 MHz analog input bandwidth supports direct sampling of second-IF stages; two-tone SFDR of 85 dBc maintains adjacent-channel interference rejection. |
| Battery-Powered Scopemeters | Low-Cost Digital Oscilloscopes |
Use Scenario: Real-time waveform acquisition in handheld scopemeters requiring >100 MS/s sampling and sub-12-bit ENOB at 50 MHz. IC Role / Device Role / Timing Role: Primary digitizer in portable test equipment with integrated memory buffer and display controller. Use Value: 395 mW power at 125 MSPS extends battery life; DCO simplifies synchronous data capture in resource-constrained microcontrollers. | Use Scenario: Cost-sensitive benchtop oscilloscopes targeting ≤100 MHz analog bandwidth and ≥1 GS/s equivalent time sampling. IC Role / Device Role / Timing Role: High-performance ADC paired with FPGA for real-time triggering, deep memory buffering, and FFT analysis. Use Value: Pin compatibility with AD9233 allows migration from 12-bit to 14-bit resolution without PCB redesign; LFCSP package enables compact, thermally efficient layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog-to-digital conversion applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9233BCPZRL7-125 | 12-bit resolution, same 125 MSPS rate, identical 48-lead LFCSP_VQ package and pinout. | Limited to applications where 12-bit ENOB suffices (e.g., lower-dynamic-range instrumentation). | Select when cost sensitivity outweighs need for 14-bit precision; drop-in replacement with no layout change. |
| ADS5463IPFP | 13-bit, 500 MSPS, 0.95 V core supply, different pinout and interface (LVDS outputs only). | Targeted at ultra-wideband radar and high-speed test equipment requiring >200 MHz input bandwidth. | Choose for higher speed at expense of resolution and power; requires new PCB layout and LVDS signal integrity design. |
Compared with AD9246BCPZRL7-125, AD9233BCPZRL7-125 offers identical speed and footprint but 2-bit lower resolution, while ADS5463IPFP trades resolution and ease of integration for 4× higher sampling rate-making AD9246BCPZRL7-125 optimal for balanced IF sampling and medical imaging where 14-bit fidelity and 125 MSPS meet system requirements without overdesign.
Availability
AD9246BCPZRL7-125 is available at Aetrix Electronics and suitable for ultrasound equipment, IF sampling in communications receivers, and battery-powered instruments requiring stable component supply, consistent parametric performance, and long-term industrial temperature support.
Supply support for AD9246BCPZRL7-125 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 legacy 12-bit converters with minimal system redesign while improving dynamic range and power efficiency.
FAQ
What is the maximum input frequency supported by the AD9246BCPZRL7-125?
The AD9246BCPZRL7-125 has an analog input bandwidth of 650 MHz, enabling it to accurately digitize signals up to at least 225 MHz while maintaining specified SNR and SFDR performance. At 70 MHz input, it achieves 71.7 dBc SNR and 85 dBc SFDR; performance degrades gradually beyond that, with 70.8 dBc SNR still measured at 170 MHz. The device is commonly used for undersampling IF signals in the 70–140 MHz range.
Does the AD9246BCPZRL7-125 require an external reference voltage?
No, the AD9246BCPZRL7-125 includes a fully integrated 1.0 V voltage reference with ±20 mV output voltage error over temperature. It can operate in internal reference mode using REFT, REFB, VREF, and SENSE pins, eliminating the need for external reference ICs. An external reference may be applied via VREF if tighter accuracy or custom voltage levels are required.
How does the duty cycle stabilizer (DCS) function in the AD9246BCPZRL7-125?
The DCS in the AD9246BCPZRL7-125 dynamically adjusts internal clock paths to compensate for duty cycle variations from 30% to 70%, ensuring consistent aperture jitter and AC performance regardless of clock source asymmetry. When enabled (via SDIO/DCS pin or SPI register), it maintains SNR and SFDR within specification even with highly distorted clocks-critical for systems using low-cost crystal oscillators or long PCB traces.
What digital output formats does the AD9246BCPZRL7-125 support?
The AD9246BCPZRL7-125 supports three programmable output data formats: offset binary, Gray code, and twos complement. Format selection is controlled via the serial port interface (SPI) or hardware pins SCLK/DFS and SDIO/DCS. This flexibility allows seamless integration with various FPGA logic families and DSP architectures without requiring post-processing bit manipulation.
Is the AD9246BCPZRL7-125 pin-compatible with other members of the AD92xx family?
Yes, the AD9246BCPZRL7-125 is explicitly pin-compatible with the AD9233BCPZ-125 (12-bit, 125 MSPS), enabling straightforward resolution upgrades in existing designs. Both share identical 48-lead LFCSP_VQ packaging, pin assignments, power sequencing, and interface protocols-requiring only firmware and layout validation, not PCB revision.
AD9246BCPZRL7-125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- 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:
- -
AD9246BCPZRL7-125 FAQ
1.How can I place an order for AD9246BCPZRL7-125 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9246BCPZRL7-125 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 AD9246BCPZRL7-125 reliable?
The price and inventory of AD9246BCPZRL7-125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9246BCPZRL7-125 is usually 5 days.
3.What payment methods are accepted for AD9246BCPZRL7-125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9246BCPZRL7-125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9246BCPZRL7-125?
AD9246BCPZRL7-125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9246BCPZRL7-125 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 AD9246BCPZRL7-125?
For technical support, including AD9246BCPZRL7-125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9246BCPZRL7-125 requirements.
6.How does Aetrix verify that AD9246BCPZRL7-125 is sourced from the original manufacturer or authorized distributors?
All AD9246BCPZRL7-125 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 AD9246BCPZRL7-125 meets industry standards.
7.What is the process for return or replacement of AD9246BCPZRL7-125?
All AD9246BCPZRL7-125 units undergo pre-shipment inspection (PSI). If there is an issue with AD9246BCPZRL7-125, 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 AD9246BCPZRL7-125 part is unused and in its original packaging.
Return procedure for AD9246BCPZRL7-125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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