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AD9629:  12-Bit, 20/40/65/80 MSPS, 1.8 V Analog-to-Digital Converter

Product Details


The AD9629 is a monolithic, single channel 1.8 V supply, 12- Bit, 20/40/65/80 MSPS analog-to-digital converter (ADC), featuring a high performance sample-and-hold circuit and onchip voltage reference. The product uses a multistage differential pipeline architecture with output error correction logic to provide 12-Bit accuracy at 80 MSPS data rates and guarantees no missing codes over the full operating temperature range.

The ADC contains several features designed to maximize flexibility and minimize system cost, such as programmable clock and data alignment and programmable digital test pattern generation. The available digital test patterns include built-in deterministic and pseudorandom patterns, along with custom user-defined test patterns entered via the serial port interface (SPI). A differential clock input controls all internal conversion cycles. An optional duty cycle stabilizer (DCS) compensates for wide variations in the clock duty cycle while maintaining excellent overall ADC performance.

The digital output data is presented in offset binary, Gray code, or twos complement formats. A data output clock (DCO) is provided to ensure proper latch timing with receiving logic. The AD9629 is available in a 32-lead Pb-free LFCSP and is specified over the industrial temperature range (−40°C to +85°C).

Applications
  • Communications
  • Diversity radio systems
  • Multimode digital receivers :
    GSM, EDGE, WCDMA, LTE, CDMA2000, WiMAX, TD-SCDMA
  • Smart antenna systems
  • Battery-powered instruments
  • Hand-held scope meters
  • Portable medical imaging
  • Ultrasound
  • Radar/LIDAR
  • PET/SPECT imaging

Product Highlights
  1. The AD9629 operates from a single 1.8 V analog power supply and features a separate digital output driver supply to accommodate 1.8 V to 3.3 V logic families.
  2. The patented sample-and-hold circuit maintains excellent performance for input frequencies up to 200 MHz and is designed for low cost, low power, and ease of use.
  3. A standard serial port interface (SPI) supports various product features and functions, such as data output format-ting, internal clock divider, power-down, DCO and data output (D11 to D0) timing and offset adjustments, and voltage reference modes.
  4. The AD9629 is packaged in a 32-lead RoHS compliant LFCSP that is pin compatible with the AD9609 10-bit ADC and the AD9649 14-bit ADC, enabling a simple migration path between 10-bit and 14-bit converters sampling from 20 MSPS to 80 MSPS.

FEATURES and BENEFITS

  • 1.8 V analog supply operation
  • 1.8 V to 3.3 V output supply
  • SNR = 70 dBFs at 9.7 MHz input
  • SFDR = 90 dBc at 9.7 MHz input
  • Low power: 44 mW @ 20MSPS
    86 mW @ 80MSPS
  • Differential input with 700 MHz bandwidth
  • On-chip voltage reference and sample-and-hold circuit
  • DNL = ±0.2 LSB
  • Flexible analog input: 1 V p-p or 2 V p-p differential
  • Offset binary, Gray code, or twos complement data format
  • Optional clock duty cycle stabilizer
  • See data sheet for additional features

Functional Block Diagram for AD9629

Documentation

Title Content Type File Type
AD9629: 12-Bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS, 1.8 V Analog-to-Digital Converter (Rev 0, 10/2009) (pdf, 1922 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-935: Designing an ADC Transformer-Coupled Front End  (pdf, 363 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
AN-741: Little Known Characteristics of Phase Noise  (pdf, 1679 kB) Application Notes PDF
CN-0272: 2 MHz Bandwidth PIN Photodiode Preamp with Dark Current Compensation  (pdf, 376 kB) Circuit Note PDF
Evaluating the AD9266/AD9649/AD9629/AD9609 Analog-to-Digital Converters User Guides HTML
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
Peak High-speed Performance even at low power. Overview 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
AD9629 IBIS Models IBIS Models HTML

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

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Companion Products

Suggested Complementary Products


Recommended Driver Amplifiers for the AD9629

  • For differential RF/IF, we recommend the ADL5561 or the ultra low distortion ADL5562.
Recommended VGA's for the AD9629
  • For an independent, dual channel, digitally controlled VGA, we suggest the AD8370.
  • For an ultralow distortion, IF dual channel VGA, we recommend the AD8375.
Recommended Clock Drivers for the AD9629
  • For low jitter performance and integrated VCO, we recommend the AD9520-0 or the AD9522-0.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

AD9629 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD9629BCPZ-20 Status: Production 32 ld LFCSP (5x5mm) w/3.5mm exposed pad 32 Ind Tray, 490 $6.18 $5.25 Y  Material Info PCN Purchase
AD9629BCPZ-40 Status: Production 32 ld LFCSP (5x5mm) w/3.5mm exposed pad 32 Ind Tray, 490 $8.06 $6.85 Y  Material Info PCN Purchase
AD9629BCPZ-65 Status: Production 32 ld LFCSP (5x5mm) w/3.5mm exposed pad 32 Ind Tray, 490 $14.21 $12.08 Y  Material Info PCN Purchase
AD9629BCPZ-80 Status: Production 32 ld LFCSP (5x5mm) w/3.5mm exposed pad 32 Ind Tray, 490 $19.65 $16.70 Y  Material Info PCN Purchase
AD9629BCPZRL7-20 Status: Production 32 ld LFCSP (5x5mm) w/3.5mm exposed pad 32 Ind Reel, 1500 - $5.25 Y  Material Info PCN Purchase
AD9629BCPZRL7-40 Status: Production 32 ld LFCSP (5x5mm) w/3.5mm exposed pad 32 Ind Reel, 1500 - $6.85 Y  Material Info PCN Purchase
AD9629BCPZRL7-65 Status: Production 32 ld LFCSP (5x5mm) w/3.5mm exposed pad 32 Ind Reel, 1500 - $12.08 Y  Material Info PCN Purchase
AD9629BCPZRL7-80 Status: Production 32 ld LFCSP (5x5mm) w/3.5mm exposed pad 32 Ind Reel, 1500 - $16.70 Y  Material Info PCN 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.

AD9629 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD9629-20EBZ Status: Production Evaluation Board $200.00 Yes -
AD9629-40EBZ Status: Production Evaluation Board $200.00 Yes -
AD9629-65EBZ Status: Production Evaluation Board $200.00 Yes -
AD9629-80EBZ 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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