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AD9637:  Octal, 12-Bit, 40/80 MSPS Serial LVDS 1.8 V A/D Converter

Product Details

Product Status:Recommended for New Designs

The AD9637 is an octal, 12-bit, 40/80 MSPS analog-to-digital converter (ADC) with an on-chip sample-and-hold circuit designed for low cost, low power, small size, and ease of use. The product operates at a conversion rate of up to 80 MSPS and is optimized for outstanding dynamic performance and low power in applications where a small package size is critical.

The ADC requires a single 1.8 V power supply and LVPECL-/ CMOS-/LVDS-compatible sample rate clock for full performance operation. No external reference or driver components are required for many applications.

The ADC automatically multiplies the sample rate clock for the appropriate LVDS serial data rate. A data clock output (DCO) for capturing data on the output and a frame clock output (FCO) for signaling a new output byte are provided. Individual channel power-down is supported and typically consumes less than 2 mW when all channels are disabled.

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).

The AD9637 is available in a RoHS-compliant, 64-lead LFCSP. It is specified over the industrial temperature range of −40°C to +85°C. This product is protected by a U.S. patent.

APPLICATIONS

  • Medical imaging and nondestructive ultrasound
  • Portable ultrasound and digital beam-forming systems
  • Quadrature radio receivers
  • Diversity radio receivers
  • Optical networking
  • Test equipment

PRODUCT HIGHLIGHTS

  1. Small Footprint. Eight ADCs are contained in a small, space-saving package.
  2. Low Power of 60 mW/Channel at 80 MSPS with Scalable Power Options.
  3. Ease of Use. A data clock output (DCO) is provided that operates at frequencies of up to 480 MHz and supports double data rate (DDR) operation.
  4. User Flexibility. The SPI control offers a wide range of flexible features to meet specific system requirements.
  5. Pin Compatible with the AD9257 (14-Bit Octal ADC).

FEATURES and BENEFITS

  • Low power: 60 mW per channel at 80 MSPS with scalable power options
  • SNR = 71.5 dBFS (to Nyquist)
  • SFDR = 92 dBc (to Nyquist)
  • Excellent linearity:
    - DNL = ±0.4 LSB (typical)
    - INL = ±0.5 LSB (typical)
  • Serial LVDS (ANSI-644, default)
    Low power, reduced signal option (similar to IEEE 1596.3)
  • Data and frame clock outputs
  • 650 MHz full-power analog bandwidth
  • 2 V p-p input voltage range
  • 1.8 V supply operation
  • See datasheet for additional features

Functional Block Diagram for AD9637

Documentation

Title Content Type File Type
AD9637: Octal, 12-Bit, 40/80 MSPS, Serial LVDS,1.8 V Analog-to-Digital Converter Data Sheet (Rev A, 04/2013) (pdf, 1075 kB) Data Sheets PDF
AN-878: High Speed ADC SPI Control Software  (pdf, 585 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-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-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
Evaluating the AD9257/AD9637 Analog to Digital Converters User Guides HTML
MS-2210: Designing Power Supplies for High Speed ADC  (pdf, 327 kB) Technical Articles PDF
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
AD9637 IBIS Model 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

Companion Products

Suggested Companion Products


Recommended Driver Amplifiers for the AD9637

  • For differential RF/IF, we recommend the ultra low distortion ADL5562.
Recommended IF Variable Gain Amplifier for the AD9637
  • For a fully differential input and output DVGA in digital communications systems, we recommend the ADL5202.
  • For an ultralow noise preamplifier optimized for Ultrasound applications, we recommend the AD8334 quad VGA.
Recommended Clock Drivers for the AD9637
  • For low jitter performance and integrated VCO, we recommend one of the AD9520 or AD9522 family of selectable VCO frequencies.
  • For low jitter performance along with on chip PLL and VCO, we recommend the AD9523, AD9523-1 or the AD9524.
Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.

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Price, packaging, availability

AD9637 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD9637BCPZ-40 Status: Production LFCSP:LEADFRM CHIP SCALE 64 Ind Tray, 260 $47.60 $40.46 Y  Material Info Notify Me Purchase
AD9637BCPZ-80 Status: Production LFCSP:LEADFRM CHIP SCALE 64 Ind Tray, 260 $67.00 $56.95 Y  Material Info Notify Me Purchase
AD9637BCPZRL7-40 Status: Production LFCSP:LEADFRM CHIP SCALE 64 Ind Reel, 750 $47.60 $40.46 Y  Material Info Notify Me Purchase
AD9637BCPZRL7-80 Status: Production LFCSP:LEADFRM CHIP SCALE 64 Ind Reel, 750 $67.00 $56.95 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.

AD9637 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD9637-80EBZ Status: Production Evaluation Board $250.00 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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