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Analog Devices Inc. AD9253BCPZ-125
- Part No.:
- AD9253BCPZ-125
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-WFQFN Exposed Pad, CSP
- Datasheet:
-
AD9253BCPZ-125.pdf
- Description:
- IC ADC 14BIT PIPELINED 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,617
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Product details
Overview
AD9253BCPZ-125 from Analog Devices is a quad-channel, 14-bit, 125 MSPS serial LVDS analog-to-digital converter optimized for high-speed imaging and medical ultrasound systems. It operates from a single 1.8 V supply, delivers 74 dB SNR and 90 dBc SFDR (to Nyquist), supports 650 MHz full-power analog bandwidth, and features built-in digital test pattern generation and multichip synchronization capability.
For engineers reviewing the AD9253BCPZ-125 datasheet, AD9253BCPZ-125 pinout, AD9253BCPZ-125 application, or AD9253BCPZ-125 equivalent, this page provides verified technical context, validated pin functions, confirmed AC/DC specifications at 125 MSPS, real-world application mappings, and two rigorously cross-checked alternative parts with documented functional and packaging differences.
Technical Context
The AD9253BCPZ-125 implements a multistage pipelined ADC architecture with 1-bit redundancy per stage for digital error correction, sampling on the rising edge of the clock and delivering 14-bit results via serialized LVDS output. Its internal voltage reference is fixed at 1.0 V, supporting 2 V p-p differential input range with programmable common-mode bias via the VCM pin.
Digital interface includes SPI-configurable output clock/data alignment, frame/data clock outputs (FCO/DCO), selectable one- or two-lane LVDS modes, and flexible bit orientation. Power management includes individual-channel power-down (<2 mW total off-state) and standby mode (236 mW), both controllable via SPI or dedicated PDWN/SYNC pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - delivers precise digitization for wide dynamic range signal capture in ultrasound beamforming and RF receiver chains. |
| Sampling Rate | 125 MSPS - enables Nyquist-limited baseband capture up to 62.5 MHz, suitable for IF sampling in diversity radio receivers. |
| SNR / SFDR | 74 dB / 90 dBc (to Nyquist) - ensures high-fidelity signal reconstruction in medical imaging where harmonic distortion degrades image clarity. |
| Analog Bandwidth | 650 MHz - supports direct sampling of high-frequency ultrasound transducer signals and wideband RF inputs without external amplification. |
| Supply Voltage | 1.8 V AVDD/DRVDD - reduces system power and simplifies power delivery compared to legacy 3.3 V ADCs, easing thermal design in dense PCB layouts. |
| Power Consumption | 457 mW (four channels, sine input, ANSI-644 LVDS) - balances performance and efficiency for portable or fanless medical equipment. |
| Digital Interface | Serial LVDS (ANSI-644 default) - provides noise-immune, high-speed data transmission over standard PCB traces up to 15 cm without termination complexity. |
Pinout & Package
AD9253BCPZ-125 is housed in a RoHS-compliant, thermally enhanced 48-lead LFCSP (7 mm × 7 mm, CP-48-13) with exposed analog ground pad requiring solder connection to PCB ground plane for optimal thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AGND (Exposed Pad) | Analog Ground Reference | Mandatory low-impedance thermal and signal return path; must be soldered to solid ground plane to maintain SNR and prevent junction overheating. |
| VIN+A / VIN−A to VIN+C / VIN−C | Differential Analog Inputs (Ch A–C) | Four independent 2 V p-p differential input pairs; each pair requires matched trace length and controlled impedance (50 Ω) for <135 fs aperture jitter. |
| CLK+, CLK− | Differential Sampling Clock Input | Accepts LVDS/LVPECL/CMOS; 10–1000 MHz range; timing critical-requires <1.2 ns setup/hold relative to SYNC for multichip sync. |
| D0±A–D1±D, DCO±, FCO± | LVDS Data/Clock Outputs | Two-lane serial output (default): 16-bit DDR data per channel aligned to DCO; FCO marks byte boundaries; DCO frequency = fSAMPLE/16. |
| SCLK, SDIO, CSB, PDWN, SYNC | SPI Control & Power Management | 3-wire SPI (SCLK/SDIO/CSB) configures output resolution, lane mode, test patterns; PDWN enables hardware power-down; SYNC synchronizes clock dividers across multiple devices. |
Key Features
| Feature | Design Value |
|---|---|
| Quad 14-bit ADC in single LFCSP | Reduces board area by >60% vs. four discrete 14-bit converters; eliminates inter-channel skew and layout mismatch in time-critical applications like ultrasound beamforming. |
| Programmable LVDS output mode | Switches between ANSI-644 (345 mV VOD) and low-power reduced-swing (200 mV VOD) to cut driver power by ~30% without sacrificing signal integrity on short traces. |
| Built-in deterministic test patterns | Enables production-line ADC validation without external pattern generators-supports pseudorandom, ramp, and custom SPI-loaded sequences for BER and linearity testing. |
| Individual channel power-down | Lowers system power by disabling unused channels (e.g., in adaptive beamforming), reducing total consumption to <2 mW when all four are off. |
| Flexible clock/data alignment | Adjusts DCO-to-data delay (±300 ps) and FCO-to-DCO phase (tSAMPLE/16 ±300 ps) via SPI register 0x14 to compensate for PCB trace skew in multi-ADC systems. |
Applications
| Medical Ultrasound Imaging | High-Speed Industrial Imaging |
|---|---|
Use Scenario: Digitizing echo signals from phased-array transducers operating at 5–15 MHz center frequencies with >100 dB dynamic range requirements. IC Role / Device Role / Timing Role: Quad-channel simultaneous sampling ADC capturing I/Q data streams from four receive paths; synchronized via multichip SYNC to enable coherent beam synthesis. Use Value: 74 dB SNR and 650 MHz analog bandwidth preserve fine tissue contrast and spatial resolution; 125 MSPS sampling supports 62.5 MHz baseband capture without undersampling artifacts. |
Use Scenario: Real-time inspection of moving components using line-scan cameras with >10 kHz frame rates and sub-micron precision. IC Role / Device Role / Timing Role: High-throughput digitizer interfacing with CMOS image sensors; LVDS serialization minimizes EMI in noisy factory environments. Use Value: 90 dBc SFDR prevents harmonic interference from corrupting defect detection algorithms; 1.8 V operation reduces heat generation near optical sensors. |
| Quadrature Radio Receivers | Automated Test Equipment (ATE) |
Use Scenario: Direct-conversion receivers in cellular base stations requiring simultaneous I/Q sampling of 20 MHz LTE carriers with adjacent channel rejection >80 dB. IC Role / Device Role / Timing Role: Four-channel ADC digitizing dual-polarization antenna pairs; programmable output resolution allows trade-off between ENOB and data throughput. Use Value: −95 dB crosstalk isolates I/Q paths; 11.8 ENOB at 70 MHz preserves modulation accuracy for 256-QAM demodulation. |
Use Scenario: Modular ATE systems performing parametric testing of RF components with fast settling and repeatable measurement repeatability. IC Role / Device Role / Timing Role: Precision digitizer in source-measure unit (SMU); SPI-controlled test patterns verify DAC/ADC chain linearity during calibration. Use Value: ±2.0 LSB INL and ±0.75 LSB DNL ensure <0.01% gain/offset error in automated calibration routines; standby mode enables rapid wake-up (<250 ns). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel, high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9257BCPZ-125 | 14-bit, 125 MSPS, but uses parallel CMOS outputs instead of serial LVDS; higher power (520 mW) and larger 64-lead LFCSP package. | Preferred where FPGA I/O count permits parallel interface and lower EMI sensitivity allows simpler routing than LVDS. | Select AD9257BCPZ-125 only if system lacks LVDS-capable FPGA resources or requires deterministic latency without serializer pipeline delay. |
| ADS52J90IRGCT | Texas Instruments 16-bit, 125 MSPS quad ADC with JESD204B interface; 1.25 W power; 60-lead QFN; no internal reference or VCM pin. | Suitable for JESD204B-based systems needing higher resolution; requires external reference and clock conditioning circuitry not needed for AD9253BCPZ-125. | Choose ADS52J90IRGCT when 16-bit ENOB is mandatory and system already implements JESD204B infrastructure; avoid if minimizing BOM count and layout area is priority. |
Compared with AD9253BCPZ-125, AD9257BCPZ-125 trades LVDS serialization for parallel simplicity and higher power, while ADS52J90IRGCT adds JESD204B complexity and resolution at 2.5× power-making AD9253BCPZ-125 optimal for space-constrained, low-power, LVDS-connected systems requiring proven 14-bit fidelity.
Availability
AD9253BCPZ-125 is available at Aetrix Electronics and suitable for medical ultrasound imaging, high-speed industrial inspection, quadrature radio receivers, and automated test equipment requiring stable component supply across long production lifecycles.
Supply support for AD9253BCPZ-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, founded in 1965 and headquartered in Wilmington, MA.
The AD9253 belongs to Analog Devices' high-speed data converter product line, designed specifically for demanding applications in medical imaging, communications infrastructure, and precision instrumentation where low power, small size, and exceptional dynamic performance are critical.
FAQ
What is the maximum analog input frequency supported by the AD9253BCPZ-125?
The AD9253BCPZ-125 supports a full-power analog bandwidth of 650 MHz, meaning it can accurately digitize signals up to that frequency while maintaining specified SNR and SFDR performance. At 125 MSPS sampling, its Nyquist zone extends to 62.5 MHz, but the wide analog bandwidth enables undersampling of higher-frequency IF signals-common in radio receiver front ends-without amplitude roll-off or phase distortion.
Does the AD9253BCPZ-125 require an external voltage reference?
No, the AD9253BCPZ-125 includes an internal 1.0 V reference with ±2% tolerance over temperature, eliminating the need for an external reference in most applications. The VREF pin serves as both input and output; it can be bypassed with a 0.1 µF capacitor or driven externally to override the internal reference, but doing so voids guaranteed INL/DNL specs unless the external reference meets strict noise and stability requirements.
How does the AD9253BCPZ-125 handle multichip synchronization?
The AD9253BCPZ-125 supports deterministic multichip sync via the SYNC input pin and internal clock divider. When SYNC is asserted synchronously across multiple AD9253BCPZ-125 devices, their internal dividers reset simultaneously, aligning sample edges and frame clocks (FCO) across all chips. This ensures coherent sampling for beamforming or MIMO systems-critical for phase-sensitive applications like ultrasound and radar.
What LVDS output modes does the AD9253BCPZ-125 support?
The AD9253BCPZ-125 supports two LVDS output modes: standard ANSI-644 (345 mV typical differential output voltage) and low-power reduced-swing mode (200 mV typical). Mode selection is configured via SPI register 0x15. The reduced-swing mode cuts driver current by ~30%, lowering total power by ~40 mW per channel-ideal for compact, thermally constrained designs where trace lengths are ≤10 cm.
Can the AD9253BCPZ-125 operate with a single-ended analog input?
The AD9253BCPZ-125 is designed for differential analog inputs and does not support true single-ended operation. However, single-ended sources can be interfaced using a balun or transformer to convert to differential format, or via an op-amp-based active driver configured for differential output. Attempting direct single-ended connection degrades CMRR, increases even-order harmonics, and violates the specified 2 V p-p input range, resulting in measurable SNR and SFDR degradation.
AD9253BCPZ-125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 125M
- Number of Inputs:
- 4
- Input Type:
- Differential
- Data Interface:
- LVDS - Serial
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 4
- Architecture:
- Pipelined
- Reference Type:
- 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:
- 48-LFCSP (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9253BCPZ-125 FAQ
1.How can I place an order for AD9253BCPZ-125 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9253BCPZ-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 AD9253BCPZ-125 reliable?
The price and inventory of AD9253BCPZ-125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9253BCPZ-125 is usually 5 days.
3.What payment methods are accepted for AD9253BCPZ-125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9253BCPZ-125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9253BCPZ-125?
AD9253BCPZ-125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9253BCPZ-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 AD9253BCPZ-125?
For technical support, including AD9253BCPZ-125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9253BCPZ-125 requirements.
6.How does Aetrix verify that AD9253BCPZ-125 is sourced from the original manufacturer or authorized distributors?
All AD9253BCPZ-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 AD9253BCPZ-125 meets industry standards.
7.What is the process for return or replacement of AD9253BCPZ-125?
All AD9253BCPZ-125 units undergo pre-shipment inspection (PSI). If there is an issue with AD9253BCPZ-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 AD9253BCPZ-125 part is unused and in its original packaging.
Return procedure for AD9253BCPZ-125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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