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Analog Devices Inc. AD9231BCPZRL7-65
- Part No.:
- AD9231BCPZRL7-65
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD9231BCPZRL7-65.pdf
- Description:
- IC ADC 12BIT PIPELINED 64LFCSP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AD9231BCPZRL7-65 from Analog Devices is a dual-channel, 12-bit, 65 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 700 MHz analog input bandwidth, on-chip voltage reference, and differential pipeline architecture guaranteeing no missing codes across −40°C to +85°C. It serves as the front-end digitizer in I/Q demodulation systems for LTE and W-CDMA baseband receivers.
For engineers reviewing the AD9231BCPZRL7-65 datasheet, AD9231BCPZRL7-65 pinout, AD9231BCPZRL7-65 application, or AD9231BCPZRL7-65 equivalent, key selection criteria include SNR (71.3 dBFS at 9.7 MHz), SFDR (93 dBc at 9.7 MHz), DNL (±0.40 LSB), power consumption (71 mW per channel at 65 MSPS), and 64-lead LFCSP package compatibility with AD9258/AD9251/AD9204 family ADCs.
Technical Context
The AD9231BCPZRL7-65 employs a multistage differential pipeline architecture with output error correction logic to achieve 12-bit accuracy at 65 MSPS while ensuring monotonicity and no missing codes over temperature. Its patented sample-and-hold circuit supports full-scale performance up to 200 MHz input frequency with 2 V p-p differential input range and 0.9 V common-mode voltage.
Digital interface flexibility includes SPI-programmable data format (offset binary/gray/twos complement), integer 1-to-8 clock division, programmable DCO/data alignment, and built-in deterministic/pseudorandom test pattern generation. The optional duty cycle stabilizer maintains performance under wide clock duty cycle variation without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - guarantees 4096 distinct digital output codes with guaranteed monotonicity and no missing codes across industrial temperature range. |
| Sample Rate | 65 MSPS - fixed maximum conversion rate for this variant; enables real-time digitization of IF signals up to 32.5 MHz Nyquist bandwidth. |
| SNR @ 9.7 MHz | 71.3 dBFS - defines effective dynamic range for narrowband communications signals; corresponds to ~11.5 ENOB. |
| SFDR @ 9.7 MHz | 93 dBc - quantifies spurious-free operation in dense spectral environments such as multi-carrier LTE base stations. |
| Power per Channel | 71 mW at 65 MSPS - enables low-power portable instrumentation and battery-operated medical ultrasound front-ends. |
| Analog Input BW | 700 MHz - supports direct sampling of high-frequency IF stages (e.g., 184–216 MHz for TD-SCDMA) without external amplification. |
| DNL | ±0.40 LSB - ensures linearity critical for accurate amplitude measurement in radar/LIDAR time-of-flight applications. |
Pinout & Package
The AD9231BCPZRL7-65 is housed in a 64-lead, 9 mm × 9 mm RoHS-compliant LFCSP package with exposed paddle soldered to AGND for thermal and noise integrity. Pin 0 is the exposed paddle (AGND); all AVDD (pins 49,50,53,54,59,60,63,64) and DRVDD (pins 10,19,28,37) supplies require local decoupling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK+, CLK− | Differential clock input | Accepts CMOS/LVDS/LVPECL; internal bias sets common-mode at 0.9 V; enables jitter-insensitive sampling with <0.1 ps rms aperture uncertainty. |
| VIN+A, VIN−A / VIN+B, VIN−B | Differential analog inputs (Ch A/B) | 700 MHz bandwidth; 2 V p-p full-scale range; 0.9 V common-mode; requires matched 50 Ω termination for RF signal chain integration. |
| D0A–D11A, D0B–D11B | CMOS digital outputs | 12-bit parallel outputs per channel; MSB-first; support 1.8 V or 3.3 V logic levels via DRVDD; multiplexable onto shared bus. |
| DCOA, DCOB | Data clock outputs | Source-synchronous clocks aligned to respective channel data; programmable phase/delay for timing closure with FPGA/ASIC receivers. |
| PDWN, OEB, CSB, SCLK/DFS, SDIO/DCS | Control and SPI interface | 30 kΩ internal pull-down/up resistors simplify board design; enable power-down, output enable, and register configuration without external biasing. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip voltage reference | 1.0 V ±1.5% output with 2 mV load regulation error enables stable full-scale calibration without external reference ICs or precision resistors. |
| Programmable clock divider | Integer 1-to-8 division allows use of lower-frequency, lower-jitter master clocks (e.g., 130 MHz crystal) to generate precise 65 MSPS sampling clock. |
| Built-in test pattern generation | Deterministic and pseudorandom patterns reduce system-level validation time by enabling closed-loop ADC/DAC loopback testing without signal generators. |
| Power-down mode | 2.2 mW standby power reduces idle consumption in burst-mode receivers (e.g., TDD-LTE or radar pulse detection) without losing configuration state. |
| Pin-compatible migration path | 64-lead LFCSP footprint matches AD9268 (16-bit), AD9258 (14-bit), AD9251 (14-bit), and AD9204 (10-bit), enabling resolution scaling within identical PCB layout. |
Applications
| Communications Base Station Receiver | I/Q Demodulation System |
|---|---|
Use Scenario: Digitizing dual-channel IF outputs from quadrature demodulators in macrocell LTE eNodeB receivers operating at 184–216 MHz. IC Role / Device Role / Timing Role: Dual-channel ADC capturing I and Q baseband signals simultaneously with matched gain/offset and sub-100 ps inter-channel skew. Use Value: 93 dBc SFDR at 9.7 MHz and 71.3 dBFS SNR preserve EVM performance below 2.5% for 64-QAM modulation under adjacent channel interference. | Use Scenario: Converting complex IF signals in software-defined radio (SDR) transceivers supporting GSM, W-CDMA, and TD-SCDMA standards. IC Role / Device Role / Timing Role: High-fidelity digitizer providing synchronized I/Q samples to FPGA-based digital downconverters with programmable DCO/data alignment. Use Value: 700 MHz analog input bandwidth eliminates need for external IF amplifiers, reducing bill-of-materials and board area in compact SDR modules. |
| Portable Ultrasound Imaging | Radar/LIDAR Time-of-Flight |
Use Scenario: Sampling echo return signals from phased-array transducers in handheld ultrasound scanners requiring low power and high SNR. IC Role / Device Role / Timing Role: Low-noise, low-power ADC front-end digitizing 5–15 MHz broadband acoustic returns with minimal added quantization noise. Use Value: 71 mW per channel at 65 MSPS enables battery operation >4 hours; 71.3 dBFS SNR preserves contrast resolution for tissue differentiation. | Use Scenario: Capturing fast-rising return pulses in short-range FMCW radar or time-of-flight LIDAR systems with 10–50 ns pulse widths. IC Role / Device Role / Timing Role: High-speed digitizer acquiring transient reflections with precise timing alignment via DCO outputs and <0.1 ps aperture jitter. Use Value: ±0.40 LSB DNL and 9-cycle pipeline latency ensure sub-millimeter distance resolution and repeatable pulse edge detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 12-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9258BCPZ-65 | 14-bit resolution, same 65 MSPS rate, identical 64-lead LFCSP package and pinout; higher SNR (74.5 dBFS) but 30% higher power (92 mW/ch). | Better dynamic range for high-fidelity spectrum analysis; less suitable for battery-constrained ultrasound due to higher power. | Select AD9258BCPZ-65 when ENOB >12 bits is required and power budget allows +21 mW/ch. |
| ADS52J90IRGCT | Texas Instruments 10-bit, 65 MSPS dual ADC in 64-pin QFN; lower SNR (63 dBFS), no on-chip reference, requires external clock buffer. | Cost-optimized alternative for non-critical IF sampling where 10-bit resolution suffices and BOM cost is primary constraint. | Select ADS52J90IRGCT only when system SNR requirements are ≤63 dBFS and external reference/clock conditioning is acceptable. |
Compared with AD9258BCPZ-65 and ADS52J90IRGCT, the AD9231BCPZRL7-65 delivers optimal balance of 12-bit fidelity, 71.3 dBFS SNR, 71 mW power, and integrated features-making it ideal for mid-tier communications and portable medical imaging where resolution, power, and integration must coexist.
Availability
AD9231BCPZRL7-65 is available at Aetrix Electronics and suitable for communications infrastructure, portable medical imaging, and radar/LIDAR systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for AD9231BCPZRL7-65 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, with design centers worldwide.
The AD9231 product line delivers high-speed, low-power, multibit ADCs optimized for communications, instrumentation, and medical imaging front-ends where precision, bandwidth, and power efficiency are jointly constrained.
FAQ
What is the maximum analog input frequency supported by the AD9231BCPZRL7-65?
The AD9231BCPZRL7-65 supports analog input frequencies up to 200 MHz while maintaining specified AC performance (e.g., 69.0 dBFS SNR). Its 700 MHz small-signal analog input bandwidth ensures minimal amplitude roll-off and phase distortion for IF sampling applications such as LTE and TD-SCDMA. This bandwidth is measured differentially across VIN+A/VIN−A and VIN+B/VIN−B pins with proper PCB layout and termination.
Does the AD9231BCPZRL7-65 require an external voltage reference?
No, the AD9231BCPZRL7-65 includes a precision on-chip 1.0 V voltage reference with ±1.5% tolerance and 2 mV load regulation error. It can operate in internal reference mode (VREF pin left unconnected or tied to SENSE) or accept an external reference between 0.7 V and 1.3 V. The internal reference eliminates BOM cost and layout complexity for most applications, including portable ultrasound and SDR platforms.
How does the duty cycle stabilizer (DCS) function in the AD9231BCPZRL7-65?
The AD9231BCPZRL7-65's optional duty cycle stabilizer (DCS) corrects wide variations in input clock duty cycle (e.g., from crystal oscillators or PLLs) without degrading SNR or SFDR. When enabled via the SDIO/DCS pin or SPI register, DCS internally generates a symmetrical clock from asymmetric inputs, maintaining <0.1 ps rms aperture jitter. This feature simplifies clock tree design in systems where low-jitter, 50% duty cycle clocks are unavailable.
What digital output formats does the AD9231BCPZRL7-65 support?
The AD9231BCPZRL7-65 supports three programmable digital output formats: offset binary (default), gray code, and twos complement. Format selection is controlled via SPI register or static pin configuration (SCLK/DFS pin). Gray code minimizes bit transition errors during sampling; twos complement simplifies DSP arithmetic in FPGA-based digital downconverters; offset binary aligns with legacy processor interfaces.
Is the AD9231BCPZRL7-65 pin-compatible with other Analog Devices ADCs?
Yes, the AD9231BCPZRL7-65 uses a 64-lead LFCSP package identical in footprint and pinout to the AD9268 (16-bit), AD9258 (14-bit), AD9251 (14-bit), and AD9204 (10-bit) families. This enables hardware reuse across resolution tiers-from 10-bit cost-sensitive designs to 16-bit high-dynamic-range systems-without PCB redesign, provided AVDD/DRVDD decoupling and analog layout constraints are maintained.
AD9231BCPZRL7-65 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 64-VFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 65M
- Number of Inputs:
- 2
- Input Type:
- Differential, Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 3.6V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-LFCSP-VQ (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9231BCPZRL7-65 FAQ
1.How can I place an order for AD9231BCPZRL7-65 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9231BCPZRL7-65 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 AD9231BCPZRL7-65 reliable?
The price and inventory of AD9231BCPZRL7-65 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9231BCPZRL7-65 is usually 5 days.
3.What payment methods are accepted for AD9231BCPZRL7-65?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9231BCPZRL7-65 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9231BCPZRL7-65?
AD9231BCPZRL7-65 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9231BCPZRL7-65 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 AD9231BCPZRL7-65?
For technical support, including AD9231BCPZRL7-65 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9231BCPZRL7-65 requirements.
6.How does Aetrix verify that AD9231BCPZRL7-65 is sourced from the original manufacturer or authorized distributors?
All AD9231BCPZRL7-65 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 AD9231BCPZRL7-65 meets industry standards.
7.What is the process for return or replacement of AD9231BCPZRL7-65?
All AD9231BCPZRL7-65 units undergo pre-shipment inspection (PSI). If there is an issue with AD9231BCPZRL7-65, 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 AD9231BCPZRL7-65 part is unused and in its original packaging.
Return procedure for AD9231BCPZRL7-65:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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