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Analog Devices Inc. AD9644BCPZ-80
- Part No.:
- AD9644BCPZ-80
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD9644BCPZ-80.pdf
- Description:
- IC ADC 14BIT PIPELINED 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,297
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Product details
Overview
AD9644BCPZ-80 from Analog Devices is a dual, 14-bit, 80 MSPS analog-to-digital converter with JESD204A serial output, 1.8 V supply operation, and differential pipeline architecture optimized for IF sampling up to 250 MHz in communications receivers. It delivers 73.7 dBFS SNR and 92 dBc SFDR at 70 MHz input, supporting diversity radio systems and multimode 3G/4G baseband processing.
For engineers reviewing the AD9644BCPZ-80 datasheet, AD9644BCPZ-80 pinout, AD9644BCPZ-80 application, or AD9644BCPZ-80 equivalent, key selection criteria include JESD204A link configuration (L=1/F=4 or L=2/F=2), dual-channel synchronization via DSYNC inputs, 1.8 V single-supply compatibility, and industrial temperature range (−40°C to +85°C) support.
Technical Context
The AD9644BCPZ-80 implements two independent 14-bit pipelined ADC cores with integrated error correction logic, each featuring wide-bandwidth differential sample-and-hold amplifiers and programmable input ranges (1.4–2.1 Vp-p). Its on-chip PLL multiplies the input clock to generate the JESD204A data-rate clock, enabling flexible clock division (1-to-8) and duty cycle stabilization.
Dual CML serial outputs operate at up to 1.6 Gbps per channel (NRZ), supporting either separate links (L=2) or shared link (L=1) configurations. Channel synchronization is managed through dedicated DSYNC+/− inputs per ADC, while SPI-controlled BIST and configurable data formatting (offset binary, twos complement, gray) provide system-level flexibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - Enables high-fidelity digitization of wide dynamic range RF/IF signals in software-defined radios. |
| Sampling Rate | 80 MSPS - Supports Nyquist-limited bandwidth up to 40 MHz or IF sampling of 70–220 MHz signals with aliasing control. |
| SNR @ 70 MHz | 73.7 dBFS - Delivers >11.8 ENOB for accurate signal reconstruction in LTE/W-CDMA demodulation paths. |
| SFDR @ 70 MHz | 92 dBc - Ensures clean spectral representation with minimal harmonic distortion in dense multi-carrier environments. |
| Power Consumption | 423 mW - Low power enables thermal-constrained designs in compact 4G small cells and portable test equipment. |
| Analog Input Bandwidth | 250 MHz usable full-scale BW - Allows direct sampling of UMTS, LTE, and WiMAX IF signals without external filtering overhead. |
| Digital Interface | JESD204A - Reduces PCB routing complexity vs. parallel LVDS, lowering pin count and EMI in FPGA-connected systems. |
Pinout & Package
AD9644BCPZ-80 is housed in a 48-lead, 7 mm × 7 mm LFCSP package with exposed thermal pad (CP-48-9). The exposed pad must be soldered to AGND for proper thermal performance and analog grounding.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+A / VIN−A | Differential analog input (Channel A) | Accepts 1.4–2.1 Vp-p differential signal; supports IF frequencies up to 250 MHz with −148.6 dBFS/Hz input noise. |
| VIN+B / VIN−B | Differential analog input (Channel B) | Independent second channel with identical AC performance and common-mode bias (VCMB). |
| CLK+ / CLK− | Differential sampling clock input | Accepts CMOS/LVDS/LVPECL; internal DCS compensates for duty cycle variation to maintain aperture accuracy. |
| DOUT+A / DOUT−A DOUT+B / DOUT−B | CML serial data outputs | Drive JESD204A-compliant links at ≤1.6 Gbps per channel; require 100 Ω differential termination. |
| DSYNC+A / DSYNC−A DSYNC+B / DSYNC−B | Channel-specific sync inputs | Enable deterministic latency alignment across both ADC channels for I/Q or MIMO timing coherence. |
| SCLK / SDIO / CSB | SPI interface pins | Configure ADC settings (data format, reference mode, power states) and enable built-in self-test (BIST). |
| PDWN | Power-down control | Hardware-triggered entry into low-power state (15 mW); also configurable via SPI for standby (85 mW) or full shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip PLL with clock multiplier | Eliminates need for external high-frequency clock source; generates JESD204A data-rate clock from lower-frequency system clock. |
| Configurable JESD204A output block | Supports L=1/F=4 (single shared link, 3.2 Gbps) or L=2/F=2 (dual independent links, 1.6 Gbps each) for FPGA interface optimization. |
| Proprietary differential input architecture | Maintains 73.7 dBFS SNR up to 70 MHz and 71.6 dBFS at 180 MHz, enabling direct IF sampling in broadband receivers. |
| Programmable internal voltage reference | Removes external reference component; allows user-selectable input range (1.4–2.1 Vp-p) to match signal chain gain distribution. |
| Built-in self-test (BIST) | Verifies ADC functionality without external stimulus-critical for field-deployed telecom infrastructure diagnostics. |
Applications
| Communications Base Station Receiver | Diversity Radio Front-End |
|---|---|
Use Scenario: Dual-channel digitization of downconverted LTE FDD/TDD signals in macrocell remote radio heads. IC Role / Device Role / Timing Role: Dual ADC core captures synchronized I/Q data streams; JESD204A outputs feed FPGA-based digital downconverters with deterministic latency. Use Value: 73.7 dBFS SNR and 92 dBc SFDR preserve EVM integrity for 256-QAM modulation; 80 MSPS rate supports 20 MHz channel bandwidth with guard bands. | Use Scenario: Simultaneous sampling of spatially separated antenna paths in 4G MIMO eNodeB systems. IC Role / Device Role / Timing Role: Provides matched gain/phase response between channels; DSYNC inputs ensure sub-cycle alignment for beamforming algorithms. Use Value: <1.25 LSB INL and ±0.55 LSB DNL matching enable coherent combining; 250 MHz analog BW accommodates 2.6 GHz band IF signals. |
| Ultrasound Beamformer | General-Purpose Software Radio |
Use Scenario: Digitizing 5–15 MHz echo return signals from phased-array transducers in portable diagnostic systems. IC Role / Device Role / Timing Role: High-resolution ADC front-end capturing time-of-flight data; low 0.125 ps rms jitter ensures precise depth resolution. Use Value: 14-bit resolution and 72.6 dBFS SNR at 180 MHz enable detection of weak tissue boundaries; 423 mW power suits battery-operated platforms. | Use Scenario: Reconfigurable SDR platform for spectrum monitoring, cognitive radio, or military comms prototyping. IC Role / Device Role / Timing Role: Flexible ADC with SPI-configurable data format (gray/twos complement) and programmable reference adapts to varying waveform standards. Use Value: JESD204A interface simplifies FPGA integration; 1.8 V supply and industrial temp range support ruggedized field deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9643BCPZ-80 | 12-bit resolution, same 80 MSPS rate, identical JESD204A interface and LFCSP-48 package. | Lowers SNR to 69.5 dBFS at 70 MHz; suitable where 12-bit ENOB suffices for cost-sensitive 3G receivers. | Select AD9643BCPZ-80 when system dynamic range requirements permit 2-bit resolution reduction and BOM cost is critical. |
| ADS52J90IRGCT | Texas Instruments dual 16-bit 100 MSPS ADC with JESD204B interface; higher resolution but no on-chip PLL or DCS. | Requires external clock multiplier and duty cycle stabilizer; supports wider 1.2 GHz analog BW but consumes 780 mW. | Choose ADS52J90IRGCT only if 16-bit resolution and >100 MSPS sampling are mandatory, and additional board space/power budget exists. |
Compared with AD9643BCPZ-80, AD9644BCPZ-80 provides 2 extra bits of resolution and 4 dB higher SFDR-critical for LTE-Advanced carrier aggregation. Versus ADS52J90IRGCT, it trades 2 bits and 20 MSPS for integrated clock conditioning, 36% lower power, and proven JESD204A interoperability with Xilinx Zynq-7000 SoCs.
Availability
AD9644BCPZ-80 is available at Aetrix Electronics and suitable for communications base stations, ultrasound beamformers, and software-defined radio platforms requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for AD9644BCPZ-80 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, serving precision instrumentation, industrial automation, and communications markets since 1965.
The AD9644 belongs to Analog Devices' high-speed ADC product line, engineered specifically for demanding wireless infrastructure and medical imaging applications where resolution, SNR, and JESD204A interoperability are essential.
FAQ
What is the maximum analog input frequency supported by the AD9644BCPZ-80?
The AD9644BCPZ-80 supports a usable full-scale analog input bandwidth of 250 MHz, as specified in the datasheet. This enables direct sampling of IF signals in LTE, W-CDMA, and WiMAX systems without requiring external anti-aliasing filters beyond basic RF front-end conditioning. Performance metrics such as SNR and SFDR remain validated up to 220 MHz at 80 MSPS.
Does the AD9644BCPZ-80 require an external voltage reference?
No, the AD9644BCPZ-80 includes a programmable internal voltage reference that eliminates the need for an external reference component. Users can configure the reference mode via SPI to support flexible analog input ranges from 1.4 Vp-p to 2.1 Vp-p, simplifying system design and reducing BOM count.
How does the JESD204A interface of the AD9644BCPZ-80 differ between L=1 and L=2 configurations?
In L=2 mode, the AD9644BCPZ-80 drives two independent JESD204A links (one per ADC channel) at up to 1.6 Gbps each. In L=1 mode, both channels share a single link at up to 3.2 Gbps. Configuration is controlled via SPI registers; both modes maintain deterministic latency and support SYNC input for multi-device alignment.
What is the power consumption of the AD9644BCPZ-80 in standby mode?
The AD9644BCPZ-80 consumes 85 mW in standby mode, as measured with DC input and inactive CLK pins. This low-power state retains register settings and allows wake-up in 5 μs, making it ideal for burst-mode communication systems like TD-SCDMA or radar pulse processing where rapid reactivation is required.
Can the AD9644BCPZ-80 synchronize its two ADC channels to an external timing source?
Yes, the AD9644BCPZ-80 provides independent DSYNC+A/DSYNC−A and DSYNC+B/DSYNC−B inputs for each channel, allowing precise alignment to an external SYSREF or frame boundary signal. When asserted synchronously, these inputs ensure deterministic latency matching (<1 clock cycle variation) between channels-essential for I/Q imbalance correction and MIMO beamforming.
AD9644BCPZ-80 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad, CSP
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 80M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- JESD204A
- 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 ~ 1.9V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-LFCSP-VQ (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9644BCPZ-80 FAQ
1.How can I place an order for AD9644BCPZ-80 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9644BCPZ-80 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 AD9644BCPZ-80 reliable?
The price and inventory of AD9644BCPZ-80 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9644BCPZ-80 is usually 5 days.
3.What payment methods are accepted for AD9644BCPZ-80?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9644BCPZ-80 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9644BCPZ-80?
AD9644BCPZ-80 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9644BCPZ-80 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 AD9644BCPZ-80?
For technical support, including AD9644BCPZ-80 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9644BCPZ-80 requirements.
6.How does Aetrix verify that AD9644BCPZ-80 is sourced from the original manufacturer or authorized distributors?
All AD9644BCPZ-80 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 AD9644BCPZ-80 meets industry standards.
7.What is the process for return or replacement of AD9644BCPZ-80?
All AD9644BCPZ-80 units undergo pre-shipment inspection (PSI). If there is an issue with AD9644BCPZ-80, 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 AD9644BCPZ-80 part is unused and in its original packaging.
Return procedure for AD9644BCPZ-80:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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