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Home > Products > Integrated Circuits (ICs) > Data Acquisition > Analog to Digital Converters (ADC)

Analog Devices Inc. AD9284BCPZRL7-250

Name: AD9284BCPZRL7-250
Brand: Analog Devices Inc.
SKU: AD9284BCPZRL7-250
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AD9284BCPZRL7-250

Manufacturer:: Analog Devices Inc.

Category:: Analog to Digital Converters (ADC)

Package:: 48-VFQFN Exposed Pad, CSP

Datasheet:: AD9284BCPZRL7-250.pdf

Description:: IC ADC 8BIT PIPELINED 48LFCSP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AD9284BCPZRL7-250 from Analog Devices is a dual-channel, 8-bit, 250 MSPS analog-to-digital converter optimized for simultaneous sampling in communications and instrumentation systems. It operates from a single 1.8 V supply, delivers 49.3 dBFS SNR at 200 MHz input, 65 dBc SFDR, and features LVDS digital outputs with built-in track-and-hold and on-chip reference. It is used in I/Q demodulation systems requiring high-speed, low-power digitization of differential RF/IF signals.

For engineers reviewing the AD9284BCPZRL7-250 datasheet, AD9284BCPZRL7-250 pinout, AD9284BCPZRL7-250 application, or AD9284BCPZRL7-250 equivalent, key selection criteria include dual-channel synchronization timing, 1.2 V_p-p differential input range, LVDS output compliance, 10.5-cycle pipeline latency, and industrial temperature operation (−40°C to +85°C).

Technical Context

The AD9284BCPZRL7-250 implements a pipelined ADC architecture with differential input buffers, integrated sample-and-hold amplifiers, and digital error correction logic per channel. Each channel shares a common encode clock but processes signals independently with matched gain and offset characteristics (±0.1% FS gain error, ±0.5% FS offset error).

It supports flexible clocking via LVDS/LVPECL/sine wave inputs, includes a programmable duty cycle stabilizer, and provides three-state LVDS outputs controlled by an OE pin. Digital interface options include pin-strapped configuration or SPI (SCLK, SDIO/PWDN, CSB) for register access and BIST control.

Key Specifications

Parameter	Value and Actual Design Meaning
Resolution	8-bit - Fixed quantization depth enabling compact data paths and low-latency processing in real-time signal chains.
Sampling Rate	250 MSPS - Maximum sustained conversion rate supporting Nyquist zones up to 125 MHz for wideband IF sampling.
SNR @ 200 MHz	49.3 dBFS - Measured dynamic signal fidelity under full-rate operation, critical for receiver sensitivity in diversity radio systems.
SFDR @ 200 MHz	65 dBc - Spurious-free performance defining usable input amplitude range before harmonic distortion dominates.
Analog Input Range	1.2 V_p-p differential - Matches standard RF driver outputs (e.g., ADA4937-1) without external scaling or attenuation.
Digital Output Interface	LVDS-compliant - Enables noise-immune, point-to-point transmission over PCB traces up to 15 cm at 250 MSPS with DCO clock forwarding.
Power Consumption	314 mW at 250 MSPS - Single-supply 1.8 V operation reduces system-level power delivery complexity versus multi-rail alternatives.
Operating Temperature	−40°C to +85°C - Industrial-grade thermal specification ensuring reliability in handheld test equipment and base station subsystems.

Pinout & Package

AD9284BCPZRL7-250 is housed in a Pb-free, 48-lead LFCSP (CP-48-14) package with exposed thermal pad (AGND) requiring soldering to PCB analog ground for thermal, noise, and mechanical integrity.

Pin/Terminal	Circuit Role	Design Meaning
VIN+A / VIN−A VIN+B / VIN−B	Differential analog inputs (Channel A/B)	Accept 1.2 V_p-p differential signals with 500 MHz bandwidth; internally biased to 1.4 V common-mode for ac/dc coupling flexibility.
CLK+ / CLK−	Differential clock input	Accept LVDS/LVPECL/sine wave; internal common-mode bias at 1.2 V enables direct transformer or balun coupling without external biasing.
D0+ to D7+ / D0− to D7− (per channel)	LVDS data outputs	Provide offset binary, Gray, or twos complement format; each pair delivers one bit with 290–400 mV differential swing and 1.15–1.35 V common-mode voltage.
DCO+ / DCO−	LVDS data clock output	Forwarded clock synchronized to data edges; enables source-synchronous capture in FPGA/ASIC receivers with <±100 ps skew tolerance.
OE	Digital output enable	Active-low control placing all LVDS outputs in high-impedance state-essential for multiplexed bus sharing or power-down sequencing.
SDIO/PWDN	SPI I/O / Power-down input	In external mode, asserts hardware power-down (<1.7 mW); in SPI mode, serves as bidirectional serial data line for register configuration.
VCM	Common-mode bias output	Provides stable 1.4 V reference for external differential drivers or transformer center-tap biasing in passive front-end designs.
RBIAS	Reference bias resistor connection	Requires 10 kΩ ±1% resistor to AGND to set master current reference; deviation directly impacts gain accuracy and INL.

Key Features

Feature	Design Value
On-chip reference and track-and-hold	Eliminates need for external reference ICs or discrete hold capacitors-reducing BOM count and layout sensitivity in space-constrained instruments.
Pin-programmable power-down	Reduces quiescent power to ≤1.7 mW without SPI interaction-enabling rapid sleep/wake cycles in battery-powered scope meters.
Built-in digital test pattern generation	Supports deterministic verification of data path integrity (e.g., PRBS, ramp, checkerboard) without external pattern generators during production test.
Optional clock duty cycle stabilizer	Compensates for asymmetric clock waveforms from PLLs or dividers-maintaining aperture jitter <0.1 ps rms across process/voltage/temperature.
Differential input with 500 MHz bandwidth	Enables direct digitization of IF signals up to 250 MHz without intermediate amplification or filtering stages in SDR front ends.
Serial port control (SPI)	Allows runtime reconfiguration of output format, test modes, and BIST execution-supporting adaptive signal chain calibration in field-deployed systems.

Applications

Diversity Radio Systems	I/Q Demodulation Systems
Use Scenario: Dual-channel RF sampling in MIMO base stations or phased-array receivers where independent antenna paths require time-aligned digitization. IC Role / Device Role / Timing Role: Simultaneous sampling ADC providing synchronized 8-bit data streams from two receive chains with matched latency (10.5 cycles) and gain/offset tracking. Use Value: Enables coherent beamforming and interference cancellation by preserving phase relationships between channels within <100 ps skew.	Use Scenario: Direct IF sampling in zero-IF or low-IF transceivers converting quadrature-mixed signals into digital baseband I/Q pairs. IC Role / Device Role / Timing Role: Dual ADC capturing in-phase (I) and quadrature (Q) components with identical full-scale range (1.2 V_p-p) and common-mode bias (1.4 V). Use Value: Maintains I/Q balance critical for EVM performance-gain matching ±0.1% FS and offset matching ±0.5% FS minimize image rejection degradation.
Battery-Powered Instruments	Low-Cost Digital Oscilloscopes
Use Scenario: Portable handheld spectrum analyzers or vector signal analyzers operating from Li-ion batteries with strict thermal and power envelopes. IC Role / Device Role / Timing Role: Low-power ADC delivering 250 MSPS throughput at 314 mW total dissipation, with hardware power-down reducing standby draw to <1.7 mW. Use Value: Extends battery life while maintaining real-time bandwidth sufficient for 100 MHz RF analysis-no external reference or bias components required.	Use Scenario: Entry-level benchtop oscilloscopes targeting sub-$1,000 price points requiring dual-channel acquisition with ≥100 MHz analog bandwidth. IC Role / Device Role / Timing Role: Dual ADC serving as front-end digitizer with LVDS outputs driving FPGA-based decimation and display pipelines. Use Value: LVDS interface simplifies high-speed routing on 2-layer PCBs; 48-lead LFCSP footprint minimizes board area versus QFP alternatives.

Diversity Radio Systems

I/Q Demodulation Systems

Use Scenario: Dual-channel RF sampling in MIMO base stations or phased-array receivers where independent antenna paths require time-aligned digitization.

IC Role / Device Role / Timing Role: Simultaneous sampling ADC providing synchronized 8-bit data streams from two receive chains with matched latency (10.5 cycles) and gain/offset tracking.

Use Value: Enables coherent beamforming and interference cancellation by preserving phase relationships between channels within <100 ps skew.

Use Scenario: Direct IF sampling in zero-IF or low-IF transceivers converting quadrature-mixed signals into digital baseband I/Q pairs.

IC Role / Device Role / Timing Role: Dual ADC capturing in-phase (I) and quadrature (Q) components with identical full-scale range (1.2 V_p-p) and common-mode bias (1.4 V).

Use Value: Maintains I/Q balance critical for EVM performance-gain matching ±0.1% FS and offset matching ±0.5% FS minimize image rejection degradation.

Battery-Powered Instruments

Low-Cost Digital Oscilloscopes

Use Scenario: Portable handheld spectrum analyzers or vector signal analyzers operating from Li-ion batteries with strict thermal and power envelopes.

IC Role / Device Role / Timing Role: Low-power ADC delivering 250 MSPS throughput at 314 mW total dissipation, with hardware power-down reducing standby draw to <1.7 mW.

Use Value: Extends battery life while maintaining real-time bandwidth sufficient for 100 MHz RF analysis-no external reference or bias components required.

Use Scenario: Entry-level benchtop oscilloscopes targeting sub-$1,000 price points requiring dual-channel acquisition with ≥100 MHz analog bandwidth.

IC Role / Device Role / Timing Role: Dual ADC serving as front-end digitizer with LVDS outputs driving FPGA-based decimation and display pipelines.

Use Value: LVDS interface simplifies high-speed routing on 2-layer PCBs; 48-lead LFCSP footprint minimizes board area versus QFP alternatives.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel, 8-bit, high-speed ADC applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AD9283BCPZ-250	Single-channel, 8-bit, 250 MSPS; same 1.8 V supply and LVDS outputs but lacks dual-channel synchronization and cross-talk isolation.	Suitable only for non-coherent single-path sampling; cannot replace AD9284BCPZRL7-250 in I/Q or diversity architectures requiring matched latency and gain.	Select when system requires only one high-speed channel and board space/power budget precludes dual-channel integration.
ADC32RF45IRGZT	14-bit, dual-channel, 3 GSPS RF-sampling ADC with JESD204B interface; significantly higher resolution, speed, and power (2.4 W).	Targets 5G mmWave and radar systems needing >1 GHz instantaneous bandwidth-over-spec'd for 250 MSPS IF sampling applications.	Choose only if future-proofing for wider bandwidth or higher ENOB is mandatory; not cost- or power-equivalent for AD9284BCPZRL7-250 use cases.

Compared with AD9284BCPZRL7-250, AD9283BCPZ-250 omits channel correlation features essential for coherent signal processing, while ADC32RF45IRGZT introduces JESD204B complexity and 7.6× higher power-making AD9284BCPZRL7-250 the optimal balance of dual-channel precision, low power, and interface simplicity for 250 MSPS instrumentation.

Availability

AD9284BCPZRL7-250 is available at Aetrix Electronics and suitable for diversity radio systems, I/Q demodulation systems, and battery-powered instruments requiring stable component supply across extended production lifecycles.

Supply support for AD9284BCPZRL7-250 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.

The AD9284 product line delivers dual-channel, low-power, high-speed ADCs designed specifically for cost-sensitive communications infrastructure and portable test equipment demanding simultaneous sampling without external support components.

FAQ

What is the maximum sampling rate supported by the AD9284BCPZRL7-250?

The AD9284BCPZRL7-250 supports a maximum sampling rate of 250 MSPS per channel, as confirmed in the DC and AC specifications tables of the Rev. B datasheet. This rate is achievable across the full industrial temperature range (−40°C to +85°C) with AVDD = DRVDD = 1.8 V and proper clock signal integrity. The device maintains specified SNR (49.3 dBFS) and SFDR (65 dBc) at this rate with a 200 MHz input tone.

Does the AD9284BCPZRL7-250 require external reference components?

No, the AD9284BCPZRL7-250 integrates an on-chip reference and track-and-hold circuit, eliminating the need for external reference ICs or hold capacitors in most applications. The internal reference is factory-trimmed to 0.98 V (typical) and can be adjusted via SPI. External reference drive is optional and only required for applications demanding tighter initial accuracy than ±0.3% FS.

How is dual-channel synchronization achieved in the AD9284BCPZRL7-250?

The AD9284BCPZRL7-250 achieves precise dual-channel synchronization through a shared encode clock (CLK+/CLK−) that simultaneously triggers both ADC cores. Matching is guaranteed by design: gain error matching is ±0.1% FS and offset error matching is ±0.5% FS across temperature, with pipeline latency fixed at 10.5 cycles for both channels-ensuring deterministic inter-channel phase alignment.

What digital output formats does the AD9284BCPZRL7-250 support?

The AD9284BCPZRL7-250 supports three configurable digital output formats: offset binary (default), Gray code, and twos complement. Format selection is performed via SPI register writes (Register 0x0C, bits [1:0]) or hardware pin strapping using SDIO/PWDN and OE during power-up. All formats maintain LVDS electrical compliance and 250 MSPS timing.

Can the AD9284BCPZRL7-250 operate with a single-ended clock input?

No-the AD9284BCPZRL7-250 requires a differential clock input (CLK+/CLK−) for specified performance. While the clock inputs accept LVDS, LVPECL, or sine wave signals, all valid configurations are inherently differential. Single-ended clock injection violates the common-mode bias requirement (1.2 V) and degrades aperture jitter, leading to SNR degradation beyond datasheet limits.

AD9284BCPZRL7-250 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 48-VFQFN Exposed Pad, CSP

Packaging:: Tape & Reel (TR)

Product Status:: Active

Number of Bits:: 8

Sampling Rate (Per Second):: 250M

Number of Inputs:: 2

Input Type:: Differential, Single Ended

Data Interface:: LVDS - 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 ~ 1.9V

Features:: Simultaneous Sampling

Operating Temperature:: -40°C ~ 85°C

Supplier Device Package:: 48-LFCSP-VQ (7x7)

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

AD9284BCPZRL7-250 FAQ

1.How can I place an order for AD9284BCPZRL7-250 through Aetrix?

Please submit a Request for Quotation (RFQ) for AD9284BCPZRL7-250 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 AD9284BCPZRL7-250 reliable?

The price and inventory of AD9284BCPZRL7-250 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9284BCPZRL7-250 is usually 5 days.

3.What payment methods are accepted for AD9284BCPZRL7-250?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9284BCPZRL7-250 transactions.

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4.How is shipping managed for AD9284BCPZRL7-250?

AD9284BCPZRL7-250 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AD9284BCPZRL7-250 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 AD9284BCPZRL7-250?

For technical support, including AD9284BCPZRL7-250 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9284BCPZRL7-250 requirements.

6.How does Aetrix verify that AD9284BCPZRL7-250 is sourced from the original manufacturer or authorized distributors?

All AD9284BCPZRL7-250 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 AD9284BCPZRL7-250 meets industry standards.

7.What is the process for return or replacement of AD9284BCPZRL7-250?

All AD9284BCPZRL7-250 units undergo pre-shipment inspection (PSI). If there is an issue with AD9284BCPZRL7-250, 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 AD9284BCPZRL7-250 part is unused and in its original packaging.

Return procedure for AD9284BCPZRL7-250:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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