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Analog Devices Inc. AD9271BSVZRL-40
- Part No.:
- AD9271BSVZRL-40
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 100-TQFP Exposed Pad
- Datasheet:
-
AD9271BSVZRL-40.pdf
- Description:
- IC ADC 12BIT PIPELINED 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,465
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Product details
Overview
AD9271BSVZRL-40 from Analog Devices is an octal-channel, integrated ultrasound receive signal processor (RSP) combining low-noise preamplifier (LNA), variable-gain amplifier (VGA), 3rd-order antialiasing filter (AAF), 12-bit ADC, and 8×6 differential crosspoint switch in a single 100-lead TQFP. It delivers 1.2 nV/√Hz input-referred LNA noise, −6 dB to +24 dB VGA gain range, programmable AAF cutoff (8–18 MHz), 70 dB SNR at 5 MHz, and LVDS serial output - optimized for medical ultrasound beamforming and CW Doppler systems.
For engineers reviewing the AD9271BSVZRL-40 datasheet, AD9271BSVZRL-40 pinout, AD9271BSVZRL-40 application, or AD9271BSVZRL-40 equivalent, this device supports high-channel-count, low-power TGC (time-gain compensation) architectures with fast overload recovery (<10 ns), SPI-programmable gain control, and dual-mode active input impedance matching - critical for portable and high-resolution imaging platforms.
Technical Context
The AD9271BSVZRL-40 implements a fully differential analog signal chain per channel: single-ended LNA inputs convert to differential outputs with selectable 14/15.6/18 dB gain; VGA provides linear-in-dB gain control across 30 dB range; AAF is a programmable 3rd-order Butterworth filter; and the 12-bit ADC operates at 40 MSPS with LVDS DDR output (DCO±/FCO±). All eight channels share a common SPI interface for configuration.
Its integrated 8×6 crosspoint switch enables flexible CW Doppler routing by connecting any of eight LNA outputs to six differential CW transconductance amplifier inputs. In CW mode, the VGA, AAF, and ADC are powered down, reducing per-channel power to 90 mW while maintaining 10/12/16 mA/V transconductance and ±2 mA p-p output swing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Resolution | 12 bits - supports high dynamic range digitization of echo signals with 4096 discrete amplitude levels |
| Sampling Rate | 40 MSPS - enables Nyquist-limited bandwidth up to 20 MHz for broadband ultrasound imaging |
| SNR | 70 dB at 5 MHz - ensures >11.6 effective bits for accurate tissue characterization and contrast resolution |
| LNA Input Noise | 1.2 nV/√Hz typical - minimizes degradation of weak echo signals in deep-tissue scanning |
| VGA Gain Range | −6 dB to +24 dB - provides precise time-gain compensation over wide echo amplitude ranges |
| AAF Cutoff | Programmable 8–18 MHz - matches transducer bandwidth and suppresses aliasing without oversampling penalty |
| Power per Channel | 150 mW at 40 MSPS (TGC mode) - enables compact, battery-operated handheld ultrasound systems |
| Crosspoint Switch | 8×6 differential - supports continuous wave Doppler beam steering across multiple transducer elements |
Pinout & Package
AD9271BSVZRL-40 is housed in a RoHS-compliant, 16 mm × 16 mm, 100-lead thin quad flat package (TQFP) with exposed thermal paddle (pin 0, tied to quiet analog ground). The package supports industrial temperature operation (−40°C to +85°C) and features dedicated analog/digital power domains (AVDD = 1.8 V, DRVDD = 1.8 V, CWVDD = 3.3 V).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LI-A to LI-H | LNA Analog Input (x8) | Single-ended echo signal inputs with active 50 Ω/100 Ω/15 kΩ termination options |
| LO-A/LOSW-A to LO-H/LOSW-H | LNA Differential Output (x8) | Drives VGA stage or CW crosspoint switch; 10 Ω output impedance for LVDS compatibility |
| DOUTA+ to DOUTH+ | LVDS ADC Data Output (x8) | DDR serial stream carrying 12-bit samples; requires matched 100 Ω differential trace routing |
| DCO+/DCO−, FCO+/FCO− | Data & Frame Clock Outputs | Synchronized LVDS clocks for data capture; DCO runs at 2× sample rate (80 MHz @ 40 MSPS) |
| GAIN+/GAIN− | Differential VGA Control Inputs | Accept 0–1 V true/complement voltage for linear-in-dB gain programming |
| CWD0+ to CWD5+ | CW Doppler Outputs (x6) | Differential current-mode outputs for external mixing; ±2 mA p-p swing into 50 Ω loads |
Key Features
| Feature | Design Value |
|---|---|
| Integrated TGC Signal Chain | Full 8-channel LNA-VGA-AAF-ADC path eliminates discrete component count and inter-stage mismatch |
| Programmable AAF | 3rd-order Butterworth filter with digitally adjustable cutoff (8–18 MHz) maintains phase linearity for pulse-echo fidelity |
| Fast Overload Recovery | <10 ns recovery from input overdrive prevents blanking artifacts during near-field clutter rejection |
| SPI-Controlled Crosspoint Switch | Enables reconfigurable CW Doppler channel routing without external multiplexers or FPGA logic |
| Low-Power Standby Mode | <2 μs wake-up time allows rapid on-demand activation for power-constrained portable scanners |
| Dual-Supply Architecture | Separate 1.8 V (AVDD/DRVDD) and 3.3 V (CWVDD) rails isolate noise-sensitive analog paths from CW output drivers |
Applications
| Ultrasound Imaging System | Portable Handheld Scanner |
|---|---|
Use Scenario: Real-time B-mode and color Doppler imaging in diagnostic cart-based systems requiring high channel density and SNR. IC Role / Device Role / Timing Role: Primary receive-path signal conditioner and digitizer for 64–128 element phased arrays; provides synchronized LVDS data streams per channel. Use Value: Enables 70 dB SNR and 80 dB SFDR performance at 40 MSPS, supporting high-frame-rate volumetric rendering without analog front-end scaling. |
Use Scenario: Battery-powered point-of-care ultrasound devices where size, thermal management, and power efficiency are critical. IC Role / Device Role / Timing Role: Single-chip TGC solution delivering 150 mW/channel at 40 MSPS and fast standby wake-up for intermittent scanning. Use Value: Reduces BOM count by integrating LNA, VGA, AAF, ADC, and crosspoint switch - cutting PCB area by >40% vs. discrete alternatives. |
| Automotive Parking Assist Radar | CW Doppler Blood Flow Monitor |
Use Scenario: Ultrasonic parking sensors using time-of-flight measurement with multi-element transducers. IC Role / Device Role / Timing Role: High-sensitivity echo receiver with programmable gain and fast overload recovery for detecting close-range obstacles. Use Value: 1.2 nV/√Hz LNA noise and 70 MHz −3 dB bandwidth support detection of weak reflections from soft surfaces (e.g., fabric, foam). |
Use Scenario: Non-invasive blood velocity monitoring via continuous-wave Doppler using piezoelectric probes. IC Role / Device Role / Timing Role: Crosspoint-switched CW signal path with 8×6 routing flexibility and 10–16 mA/V transconductance per channel. Use Value: Eliminates need for external analog switches and op-amps; enables compact, low-cost Doppler modules with <2 μs channel switching latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrasound receive signal processing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9272BSVZ-40 | 14-bit ADC resolution (vs. 12-bit); higher SNR (73.5 dB); same 40 MSPS rate and pin-compatible TQFP package | Better dynamic range for quantitative elastography or harmonic imaging; requires revised digital interface timing due to longer pipeline latency (9 cycles) | Select when >12-bit ENOB is required and system can accommodate increased data throughput and latency |
| AFE5809IPAPR | 12-bit, 65 MSPS; integrated JESD204B interface; lower power (125 mW/channel); different 144-pin HTQFP package | Designed for high-speed digital beamformers with FPGA/JESD204B backends; lacks integrated CW crosspoint switch | Select for scalable multi-board systems needing JESD204B serialization or higher sampling rates beyond 50 MSPS |
Compared with AD9271BSVZRL-40, AD9272BSVZ-40 offers higher resolution at identical speed and footprint but increases data volume and latency, while AFE5809IPAPR reduces per-channel power and adds JESD204B but removes CW Doppler switching capability and changes package and pinout - making neither a drop-in replacement.
Availability
AD9271BSVZRL-40 is available at Aetrix Electronics and suitable for medical ultrasound imaging systems, portable diagnostic scanners, and automotive ultrasonic sensing applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AD9271BSVZRL-40 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 precision instrumentation, healthcare, communications, and industrial markets since 1965.
The AD9271BSVZRL-40 belongs to Analog Devices' Ultrasound Receive Signal Processor (RSP) product line, engineered specifically for integration, power efficiency, and dynamic performance in medical and industrial echo-based sensing systems.
FAQ
What is the maximum sampling rate supported by the AD9271BSVZRL-40?
The AD9271BSVZRL-40 supports a maximum sampling rate of 40 MSPS, as indicated by the "-40" suffix in its part number. This is confirmed in the AC Specifications table (Page 4), where the AD9271-40 column lists minimum/typical/maximum clock rates of 10 MSPS to 40 MSPS. Operation above 40 MSPS is not guaranteed and may violate timing or SNR specifications.
Does the AD9271BSVZRL-40 include an integrated antialiasing filter, and can its cutoff frequency be adjusted?
Yes, the AD9271BSVZRL-40 integrates a 3rd-order Butterworth antialiasing filter (AAF) between the VGA and ADC stages. Its low-pass cutoff frequency is programmable from 8 MHz to 18 MHz via SPI register settings, as specified in the General Description (Page 1) and Table 1 (Page 4). This allows alignment with transducer bandwidth and system-level anti-aliasing requirements.
How many channels does the AD9271BSVZRL-40 support, and what signal chain functions are included per channel?
The AD9271BSVZRL-40 supports eight fully independent analog signal chains. Each channel integrates a low-noise preamplifier (LNA), variable-gain amplifier (VGA), antialiasing filter (AAF), and 12-bit ADC - all contained within the single 100-lead TQFP package. This is explicitly stated in the Features section (Page 1) and Functional Block Diagram (Figure 1).
What power supplies are required for the AD9271BSVZRL-40, and how are they used?
The AD9271BSVZRL-40 requires three distinct supplies: AVDD = 1.8 V (analog core), DRVDD = 1.8 V (LVDS output drivers), and CWVDD = 3.3 V (CW Doppler output bias). These are specified in the Power Supply table (Page 6) and General Description (Page 1). Separating AVDD and DRVDD reduces digital switching noise coupling into sensitive analog paths.
Is the AD9271BSVZRL-40 compatible with continuous wave (CW) Doppler applications, and how is that implemented?
Yes, the AD9271BSVZRL-40 supports CW Doppler via its integrated 8×6 differential crosspoint switch, which routes LNA outputs to dedicated transconductance amplifiers. In CW mode, the VGA, AAF, and ADC are powered down, reducing per-channel consumption to 90 mW. This architecture is detailed in the General Description (Page 1), Functional Block Diagram (Figure 1), and CW Doppler Mode table (Page 5).
AD9271BSVZRL-40 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 100-TQFP Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 40M
- 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:
- -
AD9271BSVZRL-40 FAQ
1.How can I place an order for AD9271BSVZRL-40 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9271BSVZRL-40 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 AD9271BSVZRL-40 reliable?
The price and inventory of AD9271BSVZRL-40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9271BSVZRL-40 is usually 5 days.
3.What payment methods are accepted for AD9271BSVZRL-40?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9271BSVZRL-40 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9271BSVZRL-40?
AD9271BSVZRL-40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9271BSVZRL-40 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 AD9271BSVZRL-40?
For technical support, including AD9271BSVZRL-40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9271BSVZRL-40 requirements.
6.How does Aetrix verify that AD9271BSVZRL-40 is sourced from the original manufacturer or authorized distributors?
All AD9271BSVZRL-40 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 AD9271BSVZRL-40 meets industry standards.
7.What is the process for return or replacement of AD9271BSVZRL-40?
All AD9271BSVZRL-40 units undergo pre-shipment inspection (PSI). If there is an issue with AD9271BSVZRL-40, 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 AD9271BSVZRL-40 part is unused and in its original packaging.
Return procedure for AD9271BSVZRL-40:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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