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AD9650:  16-bit, 25 MSPS/65 MSPS/80 MSPS/105 MSPS Analog-to-Digital Converter

Product Details

Product Status:Recommended for New Designs

The AD9650 is a dual, 16-bit, 25 MSPS/65 MSPS/80 MSPS/ 105 MSPS analog-to-digital converter (ADC) designed for digitizing high frequency, wide dynamic range signals with input frequencies of up to 300 MHz.

The dual ADC core features a multistage, differential pipelined architecture with integrated output error correction logic. Each ADC features wide bandwidth, differential sample-and-hold analog input amplifiers, and shared integrated voltage reference, which eases design considerations. A duty cycle stabilizer is provided to compensate for variations in the ADC clock duty cycle, allowing the converters to maintain excellent performance.

The ADC output data can be routed directly to the two external 16-bit output ports or multiplexed on a single 16-bit bus. These outputs can be set to either 1.8 V CMOS or LVDS.

Flexible power-down options allow significant power savings, when desired.

Programming for setup and control is accomplished using a 3-wire SPI-compatible serial interface.

The AD9650 is available in a 64-lead LFCSP and is specified over the industrial temperature range of −40°C to +85°C.


Product Highlights
  1. On-chip dither option for improved SFDR performance with low power analog input.
  2. Proprietary differential input that maintains excellent SNR performance for input frequencies up to 300 MHz.
  3. Operation from a single 1.8 V supply and a separate digital output driver supply accommodating 1.8 V CMOS or LVDS outputs.
  4. Standard serial port interface (SPI) that supports various product features and functions, such as data formatting (offset binary, twos complement, or gray coding), enabling the clock DCS, power-down, and test modes.
  5. Pin compatible with the AD9268 and other dual families, AD9269, AD9251, AD9231, and AD9204. This allows a simple migration across resolutions and bandwidth.

Applications
  • Industrial instrumentation
  • X-Ray, MRI, and ultrasound equipment
  • High speed pulse acquisition
  • Chemical and spectrum analysis
  • Direct conversion receivers
  • Multimode digital receivers
  • Smart antenna systems
  • General-purpose software radios

FEATURES and BENEFITS

  • 1.8 V analog supply operation
  • 1.8 V CMOS or LVDS output supply
  • SNR
    82 dBFS @ 30 MHz input and 105 MSPS data rate
    83 dBFS @ 9.7 MHz input and 25 MSPS data rate
  • SFDR
    90 dBc @ 30 MHz input and 105 MSPS data rate
    95 dBc @ 9.7 MHz input and 25 MSPS data rate
  • Low power
    328 mW per channel @ 105 MSPS
    119 mW per channel @ 25 MSPS
  • Integer 1-to-8 input clock divider
  • IF sampling frequencies to 300 MHz
  • Analog input range of 2.7 V p-p
  • Optional on-chip dither
  • Integrated ADC sample-and-hold inputs
  • Differential analog inputs with 500 MHz bandwidth
  • ADC clock duty cycle stabilizer
  • Download AD9650-EP Data Sheet (pdf)

Functional Block Diagram for AD9650

Documentation

Title Content Type File Type
AD9650: 16-Bit, 25 MSPS/65 MSPS/80 MSPS/105 MSPS, 1.8 V Dual Analog-to-Digital Converter (ADC) Data Sheet (Rev A, 11/2011) (pdf, 3037 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-807: Multicarrier WCDMA Feasibility  (pdf, 969 kB) Application Notes PDF
AN-808: Multicarrier CDMA2000 Feasibility  (pdf, 1535 kB)
The goal of this application note is to determine the feasibility of implementing a multicarrier CDMA2000 transceiver and what the major subsystem performances must be.
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-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-742: Frequency Domain Response of Switched-Capacitor ADCs  (pdf, 401 kB) Application Notes PDF
UG-003: Evaluating the AD9650/AD9268/AD9258/AD9251/AD9231/AD9204 Analog-to-Digital Converters  (pdf, 2699 kB) User Guides PDF
MS-2210: Designing Power Supplies for High Speed ADC  (pdf, 327 kB) Technical Articles PDF
Improve The Design Of Your Passive Wideband ADC Front-End Network
As converter technology improves, so does the demand to resolve very high intermediate frequencies (IFs) accurately at high speeds. This poses two challenges: the converter design itself and the front-end design that couples the signal content to the converter. Even if the converter itself is excellent, the front end must be able to preserve the signal quality too.
(Electronic Design, 3/26/2010)
Technical Articles HTML
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
AD9650 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 AD9650

  • For differential RF/IF, we recommend the ADL5561 or the ultra low distortion ADL5562.
Recommended VGA's for the AD9650
  • For an independent, dual channel, digitally controlled VGA, we suggest the AD8372.
  • For an ultralow distortion, IF dual channel VGA, we recommend the AD8376.
Recommended Clock Drivers for the AD9650
  • For low jitter performance and integrated VCO, we recommend the AD9520-0 and AD9522-0.
Recommended Power Solutions

  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

AD9650 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD9650BCPZ-105 Status: Production 64 ld LFCSP (9x9mm, 7.5mm exposed pad) 64 Ind Tray, 260 $159.00 $135.15 Y  Material Info Notify Me Purchase
AD9650BCPZ-25 Status: Production 64 ld LFCSP (9x9mm, 7.5mm exposed pad) 64 Ind Tray, 260 $62.35 $53.00 Y  Material Info Notify Me Purchase
AD9650BCPZ-65 Status: Production 64 ld LFCSP (9x9mm, 7.5mm exposed pad) 64 Ind Tray, 260 $115.90 $98.52 Y  Material Info Notify Me Purchase
AD9650BCPZ-80 Status: Production 64 ld LFCSP (9x9mm, 7.5mm exposed pad) 64 Ind Tray, 260 $135.20 $114.92 Y  Material Info Notify Me Purchase
AD9650BCPZRL7-105 Status: Production 64 ld LFCSP (9x9mm, 7.5mm exposed pad) 64 Ind Reel, 750 $159.00 $135.15 Y  Material Info Notify Me Purchase
AD9650BCPZRL7-25 Status: Production 64 ld LFCSP (9x9mm, 7.5mm exposed pad) 64 Ind Reel, 750 $62.35 $53.00 Y  Material Info Notify Me Purchase
AD9650BCPZRL7-65 Status: Production 64 ld LFCSP (9x9mm, 7.5mm exposed pad) 64 Ind Reel, 750 $115.90 $98.52 Y  Material Info Notify Me Purchase
AD9650BCPZRL7-80 Status: Production 64 ld LFCSP (9x9mm, 7.5mm exposed pad) 64 Ind Reel, 750 $135.20 $114.92 Y  Material Info Notify Me Purchase
AD9650USVZ-105EP Status: Production TQFP 1.0 MM W/ THERMAL PAD 80 Ind Tray, 119 - - Y  Material Info Notify Me Contact ADI
AD9650USVZR7-105EP Status: Production TQFP 1.0 MM W/ THERMAL PAD 80 Ind Reel, 1000 - - 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.

AD9650 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD9650-105EBZ Status: Production Evaluation Board $200.00 Yes -
AD9650-25EBZ Status: Production Evaluation Board $200.00 Yes -
AD9650-65EBZ Status: Production Evaluation Board $200.00 Yes -
AD9650-80EBZ Status: Production Evaluation Board $200.00 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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