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AD9284:  8-Bit, 250 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC)

Product Details

Product Status:Recommended for New Designs

The AD9284 is a dual 8-bit, monolithic sampling, analog-to-digital converter (ADC) that supports simultaneous operation and is optimized for low cost, low power, and ease of use. Each ADC operates at up to a 250 MSPS conversion rate with outstanding dynamic performance.

The ADC requires a single 1.8 V supply and an encode clock for full performance operation. No external reference components are required for many applications. The digital outputs are LVDS compatible.

The AD9284 is available in a Pb-free, 48-lead LFCSP that is specified over the industrial temperature range of −40°C to +85°C.

PRODUCT HIGHLIGHTS
  1. Integrated dual 8-bit , 250 MSPS ADC.
  2. Single 1.8 V supply operation with LVDS outputs.
  3. Power-down option that is controlled through a pin programmable setting.
APPLICATIONS
  • Communications
  • Diversity radio systems
  • I/Q demodulation systems
  • Battery-powered instruments
  • Handheld scope meters
  • Low cost digital oscilloscopes
  • OTS: video over fiber

FEATURES and BENEFITS

  • Single 1.8 V supply operation
  • SNR: 49.3 dBFS at 200 MHz input at 250 MSPS
  • SFDR: 65 dBc at 200 MHz input at 250 MSPS
  • Low power: 314 mW at 250 MSPS
  • On-chip reference and track-and-hold
  • 1.2 V p-p analog input range each channel
  • Differential input with 500 MHz bandwidth
  • DNL: ±0.2 LSB
  • Serial port control options
    -- Offset binary, Gray code, or twos complement data format
    -- Optional clock duty cycle stabilizer
    -- Built-in selectable digital test pattern generation
  • Pin-programmable power-down function
  • Available in 48-lead LFCSP

Functional Block Diagram for AD9284

Documentation

Title Content Type File Type
AD9284: 8-Bit, 250 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC) Data Sheet (Rev A, 06/2013) (pdf, 592 kB) Data Sheets PDF
AN-1142: Techniques for High Speed ADC PCB Layout  (pdf, 392 kB) Application Notes PDF
AN-878: High Speed ADC SPI Control Software  (pdf, 585 kB) Application Notes PDF
AN-282: Fundamentals of Sampled Data Systems  (pdf, 2131 kB) Application Notes PDF
AN-737: How ADIsimADC Models an ADC  (pdf, 373 kB) Application Notes PDF
AN-827: A Resonant Approach to Interfacing Amplifiers to Switched-Capacitor ADCs  (pdf, 203 kB) Application Notes PDF
AN-877: Interfacing to High Speed ADCs via SPI  (pdf, 1594 kB) Application Notes PDF
AN-905: VisualAnalog Converter Evaluation Tool Version 1.0 User Manual  (pdf, 2124 kB) Application Notes PDF
AN-935: Designing an ADC Transformer-Coupled Front End  (pdf, 363 kB) Application Notes PDF
AN-835: Understanding High Speed ADC Testing and Evaluation  (pdf, 985 kB) Application Notes PDF
AN-586: LVDS Outputs for High Speed A/D Converters  (pdf, 207 kB)
High Speed ADCs Uses LVDS (Low-Voltage Differential Signaling) to Minimize Performance Limitations In ADC Applications When Providing High Speed Data Output
Application Notes PDF
AN-812:  MicroController-Based Serial Port Interface (SPI) Boot Circuit (pdf, 452,449 bytes)  (pdf, 441 kB)
This application note describes the operation of a general-purpose, microcontroller-based Serial Port Interface (SPI) boot circuit.
Application Notes PDF
AN-851: A WiMax Double Downconversion IF Sampling Receiver Design  (pdf, 262 kB) Application Notes PDF
AN-742: Frequency Domain Response of Switched-Capacitor ADCs  (pdf, 401 kB) Application Notes PDF
AN-715: A First Approach to IBIS Models: What They Are and How They Are Generated  (pdf, 370 kB) Application Notes PDF
AN-345: Grounding for Low-and-High-Frequency Circuits  (pdf, 455 kB)
Know Your Ground and Signal Paths for Effective Designs. Current Flow Seeks Path of Least Impedance-Not Just Resistance....
Application Notes PDF
AN-756: Sampled Systems and the Effects of Clock Phase Noise and Jitter  (pdf, 291 kB) Application Notes PDF
AN-501: Aperture Uncertainty and ADC System Performance  (pdf, 227 kB)
A Key Concern in IF Sampling is that of Aperture Uncertainty (Jitter)
Application Notes PDF
AN-741: Little Known Characteristics of Phase Noise  (pdf, 1679 kB) Application Notes PDF
AD9284 and AD9286: Dual 8-bit and Lowest Power 8-bit A to D Converters
Two analog to digital converters from Analog Devices. The AD9284 is the industry's first dual 8-bit 250MSPS A to D converter, and the AD9286 is the lowest power 8-bit 500MSPS A to D converter available today, consuming just 310mW.
Videos HTML
UG-178: Evaluating the AD9284 Analog-to-Digital Converter  (pdf, 1912 kB) User Guides PDF
MS-2210: Designing Power Supplies for High Speed ADC  (pdf, 327 kB) Technical Articles PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
ADIsimADC
ADIsimADC is Analog Devices' Analog-to-Digital Behavioral Model that accurately models the typical performance characteristics of many of our High Speed Converters. The model faithfully reproduces the errors associated with both static and dynamic features such as AC linearity, clock jitter, and many other product specific anomalies.
ADIsim Design/Simulation Tools HTML
AD9284 IBIS Model  (ibs) IBIS Models IBS

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

Companion Products

Suggested Companion Products


Recommended Driver Amplifiers for the AD9284

  • For differential RF/IF, we recommend the ADL5561 or the ultra low distortion ADL5562.
  • For DC-coupled inputs, we recommend the ADA4960.
Recommended Clock Drivers for the AD9284
  • For low jitter performance and integrated VCO, we recommend the AD9520-0 or AD9522-0.
  • For low jitter performance and integrated PLL and VCO, we recommend the AD9523 or AD9524.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

AD9284 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD9284BCPZ-250 Status: Production LFCSP:LEADFRM CHIP SCALE 48 Ind Tray, 260 $29.41 $25.00 Y  Material Info Notify Me Purchase
AD9284BCPZRL7-250 Status: Production LFCSP:LEADFRM CHIP SCALE 48 Ind Reel, 750 $29.41 $25.00 Y  Material Info Notify Me Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

AD9284 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD9284-250EBZ Status: Production Evaluation Board $300.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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