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Analog Devices Inc. AD9271BSVZ-50
- Part No.:
- AD9271BSVZ-50
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 100-TQFP Exposed Pad
- Datasheet:
-
AD9271BSVZ-50.pdf
- Description:
- IC ADC 12BIT PIPELINED 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:441
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Product details
Overview
AD9271BSVZ-50 from Analog Devices is an octal-channel ultrasound analog front-end (AFE) IC integrating LNA, VGA, 3rd-order programmable antialiasing filter (AAF), and 12-bit ADC with LVDS serial output. It delivers 1.1 nV/√Hz input-referred LNA noise at 5 MHz, −6 dB to +24 dB linear-in-dB VGA gain, 8–18 MHz AAF cutoff, and 70 dB SNR at 50 MSPS for medical imaging beamforming.
For engineers reviewing the AD9271BSVZ-50 datasheet, AD9271BSVZ-50 pinout, AD9271BSVZ-50 application, or AD9271BSVZ-50 equivalent, this page provides verified technical context, channel-level specifications, TQFP-100 pin mapping, real-world ultrasound and radar use cases, and validated alternative parts for transducer interface design.
Technical Context
The AD9271BSVZ-50 implements eight fully independent signal chains, each with single-ended-to-differential LNA (14/15.6/18 dB gain), digitally programmable VGA (−6 dB to +24 dB), 3rd-order Butterworth AAF (8–18 MHz cutoff), and 12-bit ADC (10–50 MSPS). All channels share a common SPI interface for gain, filter, and mode control.
It supports dual operational modes: time-gain compensation (TGC) with full LNA/VGA/AAF/ADC path active at 150 mW/channel, and CW Doppler mode where only LNA and crosspoint switch operate at 90 mW/channel, with dedicated 3.3 V CWVDD supply and six differential CWD outputs per channel.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 12 bits - enables high dynamic range digitization of weak echo signals in ultrasound systems. |
| Max Sample Rate | 50 MSPS - supports ≥20 MHz ultrasound bandwidth with Nyquist-compliant sampling. |
| LNA Input Noise | 1.1 nV/√Hz @ 5 MHz - critical for preserving SNR when amplifying low-amplitude transducer returns. |
| VGA Gain Range | −6 dB to +24 dB - provides 30 dB TGC dynamic range to compensate for depth-dependent signal attenuation. |
| AAF Cutoff | Programmable 8–18 MHz - matches transducer center frequency and suppresses aliasing without over-filtering. |
| Output Interface | LVDS serial (ANSI-644) - reduces EMI and enables high-speed data transmission over PCB traces or cables. |
| Power per Channel | 150 mW @ 40 MSPS (TGC), 90 mW (CW Doppler) - enables portable and battery-powered ultrasound systems. |
| Operating Temp | −40°C to +85°C - qualified for industrial and medical-grade embedded environments. |
Pinout & Package
AD9271BSVZ-50 is housed in a RoHS-compliant 100-lead TQFP (16 mm × 16 mm) with exposed thermal paddle. Pin 0 is the exposed ground paddle; Pin 1 is top-left corner indicator. All AVDD pins (16 total) must be decoupled locally; CWVDD (Pin 84) requires separate 3.3 V regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LI-A to LI-H | LNA Analog Input (x8) | Single-ended transducer return inputs; each has 15 kΩ input impedance and 15 pF capacitance. |
| LO-A/LOSW-A to LO-H/LOSW-H | LNA Differential Output (x8) | Drive downstream VGA; 10 Ω output impedance enables direct connection to next stage. |
| DOUTA+ to DOUTH− | LVDS ADC Data Output (x8 channels × 2) | 12-bit serial stream at DDR LVDS; DCO± and FCO± provide synchronous capture timing. |
| CWD0+ to CWD5− | CW Doppler Crosspoint Outputs (6 differential pairs) | Enable multichannel Doppler mixing; require 3.3 V bias (CWVDD) and external op-amp summation. |
| GAIN+, GAIN− | Differential VGA Control Inputs | Accept 0–1 V true/complement voltage; 31.6 dB/V scale factor enables precise linear-in-dB gain setting. |
| CLK+, CLK− | Differential Sample Clock Input | Accepts LVPECL/LVDS/CMOS; internal clock multiplier generates LVDS bit clock up to 300 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Crosspoint Switch | 8×6 differential matrix enables flexible CW Doppler beam steering without external analog switches. |
| Programmable AAF | 3rd-order Butterworth filter with digitally adjustable cutoff (8–18 MHz) eliminates external passive components. |
| Overload Recovery | <10 ns recovery from input overdrive preserves signal integrity during near-field clutter events. |
| Low-Power Standby | <2 μs wake-up from standby mode supports rapid system responsiveness in handheld devices. |
| Dual-Supply Architecture | Separate 1.8 V (AVDD/DRVDD) and 3.3 V (CWVDD) rails isolate noise-sensitive analog paths from CW Doppler bias. |
Applications
| Ultrasound Beamforming | Automotive Radar Receivers |
|---|---|
Use Scenario: Real-time B-mode and Doppler imaging in portable and cart-based diagnostic systems using 3–15 MHz piezoelectric transducers. IC Role / Device Role / Timing Role: Primary AFE per channel-performs low-noise amplification, time-gain compensation, antialias filtering, and high-speed digitization. Use Value: 1.1 nV/√Hz LNA noise and 70 dB SNR preserve weak echo fidelity across 15 cm tissue depth; integrated crosspoint enables simultaneous pulse-echo and CW Doppler acquisition. |
Use Scenario: Short-range automotive radar receivers (24 GHz or 77 GHz) requiring multichannel IF signal conditioning before DSP. IC Role / Device Role / Timing Role: Analog baseband processor for downconverted radar IF signals-provides variable gain, filtering, and 12-bit digitization. Use Value: 30 dB VGA range compensates for varying target RCS; 50 MSPS sampling supports >20 MHz IF bandwidth; LVDS output reduces jitter in high-speed data links to FPGA. |
| Portable Medical Scanners | Industrial NDT Systems |
Use Scenario: Battery-powered point-of-care ultrasound devices with thermal and size constraints. IC Role / Device Role / Timing Role: Power-optimized AFE enabling continuous TGC operation at 40 MSPS with 150 mW/channel dissipation. Use Value: Dual power-down modes (standby & full PDWN) extend battery life; 100-lead TQFP simplifies layout vs. discrete solutions. |
Use Scenario: Ultrasonic non-destructive testing equipment for weld inspection and material thickness gauging. IC Role / Device Role / Timing Role: High-fidelity signal conditioner for piezoelectric transducer arrays-handles wide dynamic range echoes from metal/compound interfaces. Use Value: 1.4 nV/√Hz full-channel input-referred noise ensures detection of micro-defect reflections; programmable AAF adapts to varied test frequencies (1–20 MHz). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrasound AFE applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9272BSVZ-50 | 14-bit resolution, 65 MSPS max, higher SNR (73.5 dB), no CW Doppler switch; consumes 220 mW/channel. | Better for high-resolution static imaging; unsuitable for real-time Doppler due to missing crosspoint. | Select when quantization noise dominates system performance and CW Doppler is not required. |
| AFE5809IRGCT | Texas Instruments part: 12-bit, 65 MSPS, integrated LDOs, 1.5 nV/√Hz noise, no programmable AAF; uses QFN-80 package. | Lower integration (no on-chip AAF), different power architecture; optimized for TI's C6000 DSP ecosystem. | Choose when board space is constrained and external AAF filtering is acceptable; verify SPI register compatibility. |
Compared with AD9271BSVZ-50, AD9272BSVZ-50 trades CW Doppler capability for higher resolution and speed, while AFE5809IRGCT offers smaller footprint but requires external filtering and lacks crosspoint flexibility-making AD9271BSVZ-50 optimal for integrated, multimode ultrasound designs.
Availability
AD9271BSVZ-50 is available at Aetrix Electronics and suitable for medical imaging systems, automotive radar receivers, portable ultrasound scanners, and industrial NDT equipment requiring stable component supply across long production lifecycles.
Supply support for AD9271BSVZ-50 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 semiconductors, headquartered in Norwood, MA.
The AD9271 product line targets ultrasound and radar AFE applications, integrating LNA, VGA, AAF, ADC, and crosspoint switching into a single chip to reduce system size, power, and design complexity.
FAQ
What is the maximum sample rate supported by the AD9271BSVZ-50?
The AD9271BSVZ-50 supports a maximum sample rate of 50 MSPS, as confirmed in the "Switching Specifications" table (Table 3) of the Rev. B datasheet. At this rate, the ADC maintains 70 dB SNR and 80 dB SFDR at 5 MHz input frequency, making it suitable for high-bandwidth ultrasound applications requiring ≥20 MHz analog bandwidth.
Does the AD9271BSVZ-50 include an integrated antialiasing filter?
Yes, the AD9271BSVZ-50 integrates a 3rd-order Butterworth antialiasing filter (AAF) between the VGA and ADC stages. Its cutoff frequency is programmable from 8 MHz to 18 MHz via SPI, and it exhibits ±15% bandwidth tolerance and ±2 ns group delay variation across the passband-enabling precise matching to transducer center frequencies without external components.
How many channels does the AD9271BSVZ-50 support, and what is its per-channel power consumption?
The AD9271BSVZ-50 supports eight fully independent analog signal channels. In time-gain compensation (TGC) mode at 40 MSPS, it consumes 150 mW per channel; in CW Doppler mode, power drops to 90 mW per channel. Total full-channel dissipation is 1.494 W (typical) at 50 MSPS, supplied by 1.8 V AVDD/DRVDD and 3.3 V CWVDD rails.
What package type and pin count does the AD9271BSVZ-50 use?
The AD9271BSVZ-50 is packaged in a 100-lead TQFP (16 mm × 16 mm) with exposed thermal paddle (Pin 0). This RoHS-compliant package is specified over −40°C to +85°C and features 16 dedicated AVDD pins, dual supply domains (1.8 V and 3.3 V), and pin-compatible routing for all eight channels' LNA inputs, VGA outputs, and LVDS data streams.
Can the AD9271BSVZ-50 be used for continuous wave (CW) Doppler applications?
Yes, the AD9271BSVZ-50 includes a dedicated CW Doppler mode with an integrated 8×6 differential crosspoint switch and six programmable CWD output pairs (CWD0± through CWD5±). In this mode, the LNA drives a transconductance amplifier, bypassing the VGA, AAF, and ADC-enabling low-noise, low-power Doppler signal extraction with external mixing and summation.
AD9271BSVZ-50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 100-TQFP Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 50M
- Number of Inputs:
- 8, 16
- Input Type:
- Differential, Single Ended
- Data Interface:
- LVDS - Serial
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 8
- 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:
- 100-TQFP-EP (14x14)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9271BSVZ-50 FAQ
1.How can I place an order for AD9271BSVZ-50 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9271BSVZ-50 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 AD9271BSVZ-50 reliable?
The price and inventory of AD9271BSVZ-50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9271BSVZ-50 is usually 5 days.
3.What payment methods are accepted for AD9271BSVZ-50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9271BSVZ-50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9271BSVZ-50?
AD9271BSVZ-50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9271BSVZ-50 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 AD9271BSVZ-50?
For technical support, including AD9271BSVZ-50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9271BSVZ-50 requirements.
6.How does Aetrix verify that AD9271BSVZ-50 is sourced from the original manufacturer or authorized distributors?
All AD9271BSVZ-50 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 AD9271BSVZ-50 meets industry standards.
7.What is the process for return or replacement of AD9271BSVZ-50?
All AD9271BSVZ-50 units undergo pre-shipment inspection (PSI). If there is an issue with AD9271BSVZ-50, 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 AD9271BSVZ-50 part is unused and in its original packaging.
Return procedure for AD9271BSVZ-50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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