My Inquiry
My Account
Analog Devices Inc. AD9251BCPZ-80
- Part No.:
- AD9251BCPZ-80
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD9251BCPZ-80.pdf
- Description:
- IC ADC 14BIT PIPELINED 64LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,702
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD9251BCPZ-80 from Analog Devices is a dual-channel, 14-bit, 80 MSPS analog-to-digital converter operating from a single 1.8 V analog supply with separate 1.8 V–3.3 V digital output drivers. It delivers 74.3 dBFS SNR at 9.7 MHz input and 71.5 dBFS at 200 MHz, supports 700 MHz analog input bandwidth, and features on-chip voltage reference and sample-and-hold for direct interfacing in RF receiver front ends.
For engineers reviewing the AD9251BCPZ-80 datasheet, AD9251BCPZ-80 pinout, AD9251BCPZ-80 application, or AD9251BCPZ-80 equivalent, key selection criteria include its 80 MSPS sampling rate, dual-channel interleaving capability, CMOS/LVDS/LVPECL clock compatibility, programmable data format (offset binary/gray/twos complement), and integrated duty cycle stabilizer for jitter-sensitive timing systems.
Technical Context
The AD9251BCPZ-80 implements a multistage differential pipeline architecture with output error correction logic to guarantee 14-bit accuracy and no missing codes across −40°C to +85°C. Its patented sample-and-hold circuit maintains performance up to 200 MHz input frequency while enabling low-power operation at 73 mW per channel.
Dual independent ADC cores share a common differential clock input and support synchronized operation via SYNC pin; each channel provides dedicated DCO outputs, out-of-range flags (ORA/ORB), and multiplexed 14-bit CMOS data buses (D0A–D13A / D0B–D13B) configurable for interleaved or parallel readout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - guarantees monotonicity and no missing codes over full industrial temperature range. |
| Max Sample Rate | 80 MSPS - enables digitization of IF signals up to 40 MHz Nyquist bandwidth per channel. |
| SNR @ 9.7 MHz | 74.3 dBFS - supports high-fidelity baseband signal capture in LTE/W-CDMA receivers. |
| SFDR @ 200 MHz | 80 dBc - ensures clean spectral representation for radar/LIDAR pulse detection. |
| Analog Input BW | 700 MHz - allows direct sampling of wideband RF signals without external amplification. |
| Power @ 80 MSPS | 73 mW per channel - enables battery-powered ultrasound and handheld test equipment designs. |
| Differential Clock | CMOS/LVDS/LVPECL compatible - simplifies integration with FPGA clock trees or RF synthesizers. |
| Pipeline Latency | 9 cycles - enables deterministic timing alignment in closed-loop I/Q demodulation systems. |
Pinout & Package
The AD9251BCPZ-80 is housed in a 64-lead RoHS-compliant LFCSP (CP-64-17) with exposed paddle soldered to AGND for thermal and noise integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK+, CLK− | Differential clock input | Accepts PECL/LVDS/1.8 V CMOS; internal bias sets common-mode at 0.9 V for robust timing margin. |
| VIN+A, VIN−A / VIN+B, VIN−B | Differential analog inputs (Ch A/B) | 700 MHz bandwidth; 2 V p-p full-scale range; 6 pF input capacitance minimizes filter loading. |
| D0A–D13A, D0B–D13B | Parallel CMOS data outputs | 14-bit per channel; MSB-first; DRVDD-referenced (1.8 V–3.3 V) for flexible logic interfacing. |
| DCOA, DCOB | Data clock outputs | Programmable phase-aligned clocks for synchronous latching in FPGA or ASIC receivers. |
| ORA, ORB | Out-of-range indicators | Active-high flags signaling analog input saturation-critical for automatic gain control loops. |
| PDWN, OEB, CSB | Control inputs | 30 kΩ internal pull-down/up enables default-safe power-down, output enable, and SPI chip select. |
| VREF, SENSE, VCM, RBIAS | Reference and bias configuration | Supports internal/external reference; VCM sets input common-mode; RBIAS configures analog bias current. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip voltage reference | 1.0 V ±1.5% output with 2 ppm/°C drift-eliminates external reference IC and reduces BOM count. |
| Programmable clock divider (1–8) | Enables use of higher-frequency system clocks while maintaining precise 80 MSPS sampling rate. |
| Built-in test pattern generation | Includes deterministic, pseudorandom, and user-defined patterns via SPI-accelerates board-level validation. |
| Duty cycle stabilizer (DCS) | Compensates for >40% clock duty cycle variation without degrading SNR/SFDR performance. |
| Energy-saving power modes | 2.2 mW power-down state and 37 mW standby mode extend battery life in portable medical imaging. |
| Integer-N synchronization (SYNC) | Aligns conversion start across multiple AD9251 devices-essential for phased-array radar beamforming. |
Applications
| Communications Receiver | I/Q Demodulation System |
|---|---|
Use Scenario: Dual-channel digitization of downconverted GSM/EDGE/W-CDMA signals in diversity radio base stations. IC Role / Device Role / Timing Role: Simultaneous sampling of I and Q paths with matched gain/phase response and sub-1 ps inter-channel skew. Use Value: Enables real-time complex baseband processing with <±0.65% gain matching and <±0.65% offset matching between channels. |
Use Scenario: High-speed acquisition of quadrature-mixed RF signals in software-defined radios. IC Role / Device Role / Timing Role: ADC core providing time-aligned 14-bit I/Q samples at 80 MSPS with programmable DCO edge alignment. Use Value: Supports >30 MHz instantaneous bandwidth with 71.5 dBFS SNR at 200 MHz input for wideband spectrum analysis. |
| Ultrasound Imaging Front End | Radar/LIDAR Signal Acquisition |
Use Scenario: Digitizing echo return signals from phased-array transducers in portable ultrasound scanners. IC Role / Device Role / Timing Role: Low-noise, low-power dual ADC capturing 10–20 MHz band-limited RF echoes with minimal dead time. Use Value: Achieves 0.98 LSB rms input-referred noise and 73.6 dBFS SNR at 70 MHz-critical for contrast resolution. |
Use Scenario: Time-of-flight measurement in pulsed LIDAR systems requiring high dynamic range and fast settling. IC Role / Device Role / Timing Role: High-SFDR digitizer capturing short-duration return pulses with 80 dBc spurious-free range at 200 MHz. Use Value: Delivers 80 dBc SFDR at 200 MHz input-enables detection of weak return signals amid strong clutter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 14-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9258BCPZ-80 | 14-bit, 80 MSPS, same pinout and package but with enhanced SFDR (93 dBc @ 9.7 MHz vs. 93 dBc for AD9251BCPZ-80) and lower power (65 mW/ch). | Preferred for new designs requiring higher spurious-free dynamic range in communications infrastructure. | Select AD9258BCPZ-80 when SFDR >92 dBc is required at low input frequencies and layout reuse is critical. |
| AD9231BCPZ-80 | 12-bit, 80 MSPS, pin-compatible LFCSP-64, lower power (45 mW/ch), reduced SNR (70.5 dBFS @ 9.7 MHz). | Suitable for cost-sensitive applications where 12-bit resolution suffices, such as basic spectrum monitoring. | Choose AD9231BCPZ-80 when resolution can be relaxed to 12 bits and power budget is constrained below 50 mW/ch. |
Compared with AD9251BCPZ-80, AD9258BCPZ-80 offers superior SFDR and efficiency for high-performance comms, while AD9231BCPZ-80 trades resolution for lower cost and power in less demanding sensing roles-both maintain identical footprint and interface compatibility.
Availability
AD9251BCPZ-80 is available at Aetrix Electronics and suitable for communications infrastructure, portable medical imaging, and radar/LIDAR signal acquisition requiring stable component supply across extended product lifecycles.
Supply support for AD9251BCPZ-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 AD9251 belongs to Analog Devices' high-speed ADC product line, engineered for RF-sampling receiver architectures in wireless infrastructure, defense electronics, and portable test equipment where dual-channel synchronization and low power are essential.
FAQ
What is the maximum analog input frequency supported by the AD9251BCPZ-80?
The AD9251BCPZ-80 supports analog input frequencies up to 200 MHz while maintaining specified AC performance, including 71.5 dBFS SNR and 80 dBc SFDR. Its 700 MHz analog input bandwidth ensures minimal amplitude roll-off and phase distortion across this range, making it suitable for direct RF sampling in L-band radar and broadband communications.
Does the AD9251BCPZ-80 require an external voltage reference?
No, the AD9251BCPZ-80 includes an on-chip 1.0 V voltage reference with ±1.5% initial accuracy and 2 ppm/°C temperature drift. External reference is optional via the VREF pin; using the internal reference eliminates external components and simplifies layout, especially in space-constrained ultrasound or handheld scope meter designs.
How does the duty cycle stabilizer (DCS) function in the AD9251BCPZ-80?
The AD9251BCPZ-80's duty cycle stabilizer (DCS) dynamically adjusts internal clock path delays to compensate for wide variations in input clock duty cycle-up to ±20% deviation-without degrading SNR or SFDR. This feature is enabled via the SDIO/DCS pin and is critical when driving the ADC from PLLs or dividers with poor duty cycle control.
What digital output formats does the AD9251BCPZ-80 support?
The AD9251BCPZ-80 supports three programmable data formats: offset binary (default), gray code, and twos complement. Format selection is controlled via SPI register or static pin (SCLK/DFS) configuration. Gray code minimizes bit transition errors during sampling; twos complement simplifies DSP arithmetic in FPGA-based demodulators.
Is the AD9251BCPZ-80 pin-compatible with other Analog Devices ADCs?
Yes, the AD9251BCPZ-80 uses a 64-lead LFCSP package (CP-64-17) that is pin-compatible with the AD9268 (16-bit), AD9258 (14-bit), AD9231 (12-bit), and AD9204 (10-bit) families. This enables seamless migration across resolution and speed grades-from 20 MSPS to 125 MSPS-without PCB redesign.
AD9251BCPZ-80 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 64-VFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 80M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- External, 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:
- -
AD9251BCPZ-80 FAQ
1.How can I place an order for AD9251BCPZ-80 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9251BCPZ-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 AD9251BCPZ-80 reliable?
The price and inventory of AD9251BCPZ-80 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9251BCPZ-80 is usually 5 days.
3.What payment methods are accepted for AD9251BCPZ-80?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9251BCPZ-80 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9251BCPZ-80?
AD9251BCPZ-80 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9251BCPZ-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 AD9251BCPZ-80?
For technical support, including AD9251BCPZ-80 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9251BCPZ-80 requirements.
6.How does Aetrix verify that AD9251BCPZ-80 is sourced from the original manufacturer or authorized distributors?
All AD9251BCPZ-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 AD9251BCPZ-80 meets industry standards.
7.What is the process for return or replacement of AD9251BCPZ-80?
All AD9251BCPZ-80 units undergo pre-shipment inspection (PSI). If there is an issue with AD9251BCPZ-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 AD9251BCPZ-80 part is unused and in its original packaging.
Return procedure for AD9251BCPZ-80:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD9251BCPZ-80 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…
