My Inquiry
My Account
Analog Devices Inc. AD9641BCPZ-155
- Part No.:
- AD9641BCPZ-155
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-WFQFN Exposed Pad, CSP
- Datasheet:
-
AD9641BCPZ-155.pdf
- Description:
- IC ADC 14BIT PIPELINED 32LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,903
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD9641BCPZ-155 from Analog Devices is a 14-bit, 155 MSPS analog-to-digital converter with JESD204A serial output, 1.8 V single-supply operation, and differential input bandwidth up to 250 MHz. It delivers 72.8 dBFS SNR and 90 dBc SFDR at 70 MHz input, supporting IF sampling in wireless receivers and software-defined radios.
For engineers reviewing the AD9641BCPZ-155 datasheet, AD9641BCPZ-155 pinout, AD9641BCPZ-155 application, or AD9641BCPZ-155 equivalent, key selection criteria include JESD204A data rate (up to 3.1 Gbps), deterministic jitter (40 ps), pipeline latency (24 clock cycles), and industrial temperature range (−40°C to +85°C).
Technical Context
The AD9641BCPZ-155 employs a multistage differential pipelined ADC architecture with integrated error correction logic and a duty cycle stabilizer (DCS) for robust clock tolerance. Its on-chip PLL multiplies the input sampling clock to generate the JESD204A serializer clock, enabling single-clock system synchronization.
It supports flexible analog input ranges (1.4–2.1 Vp-p), programmable internal voltage reference, and user-configurable BIST. The CML serial output interface operates at up to 3.1 Gbps with 100 Ω differential termination and deterministic jitter of 40 ps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - Enables high-fidelity digitization of wide dynamic range signals in communications receivers. |
| Max Sample Rate | 155 MSPS - Supports Nyquist-sampled IF frequencies up to 77.5 MHz or undersampled RF/IF signals to 250 MHz. |
| SNR @ 70 MHz | 72.8 dBFS - Delivers >12 ENOB for accurate demodulation of LTE/W-CDMA carriers under real-world noise conditions. |
| SFDR @ 70 MHz | 90 dBc - Ensures clean spectral representation with minimal harmonic distortion in dense signal environments. |
| JESD204A Data Rate | 3.1 Gbps - Reduces FPGA I/O count and PCB routing complexity versus parallel LVDS interfaces. |
| Power Consumption | 313 mW at 155 MSPS - Optimized for power-constrained baseband processing in compact radio modules. |
| Analog Input BW | 250 MHz usable full-scale bandwidth - Allows direct sampling of UMTS/LTE band-edge signals without external filtering. |
Pinout & Package
The AD9641BCPZ-155 is housed in a 32-lead 5 mm × 5 mm LFCSP package with exposed thermal pad (AGND) requiring solder connection to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN+, VIN− | Differential analog input | Accepts 1.4–2.1 Vp-p input; supports transformer- or amplifier-driven IF signals up to 250 MHz. |
| CLK+, CLK− | Differential sampling clock input | CMOS/LVDS/LVPECL-compatible; DCS corrects duty cycle to maintain ADC linearity at high rates. |
| DOUT+, DOUT− | JESD204A CML serial output | 3.1 Gbps differential output; requires 100 Ω AC-coupled termination to DRVDD/2 reference. |
| SYNC | Input clock divider sync | Aligns internal divide-by-N counters across multiple ADCs for coherent multichip sampling. |
| DSYNC+, DSYNC− | JESD204A link synchronization | LVDS/CMOS-selectable input to align serializer frames with FPGA receiver logic. |
| SCLK, SDIO, CSB | 3-wire SPI control interface | Configures data format (offset binary/twos complement), power modes, BIST, and reference settings. |
Key Features
| Feature | Design Value |
|---|---|
| JESD204A serial interface | Reduces interconnect count by >70% vs. parallel LVDS; enables scalable multi-ADC systems with deterministic latency. |
| On-chip PLL with clock multiplier | Eliminates need for external high-frequency clock source; derives 3.1 GHz serializer clock from 155 MHz sampling clock. |
| Programmable input voltage range | Supports 1.4–2.1 Vp-p differential swing, simplifying front-end gain staging for varying signal chain architectures. |
| Built-in self-test (BIST) | Verifies ADC functionality without external stimulus-critical for field-deployed equipment diagnostics and calibration. |
| Duty cycle stabilizer (DCS) | Compensates for clock asymmetry, preserving SNR/SFDR performance even with 40%–60% duty cycle inputs. |
Applications
| Communications Base Stations | Software-Defined Radios |
|---|---|
|
Use Scenario: Digitizing 70–180 MHz IF signals in LTE macrocell and small-cell transceivers. IC Role / Device Role / Timing Role: High-speed ADC capturing wideband downconverted signals for digital predistortion and MIMO processing. Use Value: 90 dBc SFDR ensures adjacent channel leakage ratio (ACLR) compliance; 24-cycle pipeline latency enables real-time feedback loops. |
Use Scenario: Reconfigurable RF front-end in military/commercial SDR platforms operating across 3G/4G/WiMAX bands. IC Role / Device Role / Timing Role: Flexible-resolution ADC supporting adaptive sampling rates and input ranges via SPI configuration. Use Value: JESD204A interface allows seamless integration with Xilinx Zynq RFSoCs; −148.1 dBFS/Hz noise floor preserves weak signal sensitivity. |
| Ultrasound Imaging Systems | Diversity Radio Receivers |
|
Use Scenario: Beamforming receive path in portable and cart-based ultrasound scanners using 5–15 MHz transducer arrays. IC Role / Device Role / Timing Role: High-SNR digitizer for time-of-flight echo acquisition with precise phase coherence across channels. Use Value: 72.8 dBFS SNR at 155 MSPS enables >140 dB dynamic range; low 0.125 ps rms jitter minimizes time-domain smearing. |
Use Scenario: Dual-path diversity receiver in point-to-multipoint wireless backhaul links with fast fading compensation. IC Role / Device Role / Timing Role: Synchronized dual ADC subsystem (using SYNC/DSYNC) for coherent signal combining and interference rejection. Use Value: Multichip sync capability ensures sub-sample timing alignment; 313 mW power enables thermal management in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9643BCPZ-150 | 14-bit, 150 MSPS; JESD204A; same 32-lead LFCSP but lower max sample rate and 71.5 dBFS SNR at 70 MHz. | Suitable for cost-sensitive designs where 5 MSPS margin is acceptable and SNR budget allows 1.3 dB degradation. | Select AD9643BCPZ-150 if system clocking constraints limit input frequency to ≤150 MHz and thermal envelope is tighter. |
| ADS42JB69IRGCT | 16-bit, 250 MSPS; JESD204B; 40-lead VQFN; higher resolution but 4× power (1.2 W) and no on-chip DCS. | Preferred for applications requiring >14 ENOB (e.g., high-fidelity radar), but demands more complex clocking and layout. | Choose ADS42JB69IRGCT only when 16-bit resolution is mandatory and additional power/PCB area can be allocated. |
Compared with AD9641BCPZ-155, AD9643BCPZ-150 trades 5 MSPS and 1.3 dB SNR for lower cost and power, while ADS42JB69IRGCT provides 2 extra bits at 4× power and JESD204B complexity-making AD9641BCPZ-155 optimal for balanced performance, power, and interface simplicity in 3G/4G infrastructure.
Availability
AD9641BCPZ-155 is available at Aetrix Electronics and suitable for communications infrastructure, medical ultrasound imaging, software-defined radio development, and diversity receiver systems requiring stable component supply across extended product lifecycles.
Supply support for AD9641BCPZ-155 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 communications, industrial, automotive, and healthcare markets since 1965.
The AD9641 belongs to Analog Devices' high-speed data converter product line, engineered for demanding wireless infrastructure and instrumentation applications requiring precision, speed, and serial interface efficiency.
FAQ
What is the maximum input frequency supported by the AD9641BCPZ-155?
The AD9641BCPZ-155 has a specified analog input bandwidth of 780 MHz (−3 dB), but its usable full-scale bandwidth with maintained SNR/SFDR performance is 250 MHz. This enables undersampling of RF signals in the UMTS, LTE, and WiMAX bands without sacrificing linearity or dynamic range.
Does the AD9641BCPZ-155 require an external voltage reference?
No, the AD9641BCPZ-155 includes a programmable internal voltage reference, eliminating the need for external reference components. Users may select internal or external reference mode via SPI register configuration, simplifying board design and reducing BOM count.
How does the duty cycle stabilizer (DCS) improve system robustness in the AD9641BCPZ-155?
The DCS in the AD9641BCPZ-155 actively corrects sampling clock duty cycle variations, maintaining ADC performance even with asymmetric clocks (e.g., from low-jitter oscillators or FPGA outputs). This avoids SNR degradation and INL errors that would otherwise occur at 155 MSPS with non-50% duty cycle inputs.
What is the pipeline latency of the AD9641BCPZ-155, and why does it matter?
The AD9641BCPZ-155 has a fixed pipeline latency of 24 clock cycles at 155 MSPS. This deterministic delay is critical for real-time digital predistortion (DPD) and closed-loop feedback systems, enabling precise alignment between transmit and receive paths in TDD/FDD transceivers.
Can the AD9641BCPZ-155 operate with a 3.3 V supply?
No, the AD9641BCPZ-155 is designed exclusively for 1.8 V operation on both AVDD and DRVDD supplies. Applying 3.3 V exceeds absolute maximum ratings and will cause permanent damage. Proper 1.8 V regulation and decoupling are mandatory per the datasheet layout guidelines.
AD9641BCPZ-155 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad, CSP
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 155M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- JESD204A
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 32-LFCSP (5x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9641BCPZ-155 FAQ
1.How can I place an order for AD9641BCPZ-155 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9641BCPZ-155 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 AD9641BCPZ-155 reliable?
The price and inventory of AD9641BCPZ-155 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9641BCPZ-155 is usually 5 days.
3.What payment methods are accepted for AD9641BCPZ-155?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9641BCPZ-155 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9641BCPZ-155?
AD9641BCPZ-155 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9641BCPZ-155 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 AD9641BCPZ-155?
For technical support, including AD9641BCPZ-155 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9641BCPZ-155 requirements.
6.How does Aetrix verify that AD9641BCPZ-155 is sourced from the original manufacturer or authorized distributors?
All AD9641BCPZ-155 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 AD9641BCPZ-155 meets industry standards.
7.What is the process for return or replacement of AD9641BCPZ-155?
All AD9641BCPZ-155 units undergo pre-shipment inspection (PSI). If there is an issue with AD9641BCPZ-155, 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 AD9641BCPZ-155 part is unused and in its original packaging.
Return procedure for AD9641BCPZ-155:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD9641BCPZ-155 Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
