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AD9634:  12-Bit, 170 MSPS/210 MSPS/250 MSPS, 1.8 V Analog-to-Digital Converter

Product Details

Product Status:Recommended for New Designs

The AD9634 is a 12-bit, analog-to-digital converter (ADC) with sampling speeds of up to 250 MSPS. The AD9634 is designed to support communications applications where low cost, small size, wide bandwidth, and versatility are desired.

The ADC core features a multistage, differential pipelined architecture with integrated output error correction logic. The ADC features wide bandwidth inputs that can support a variety of user-selectable input ranges. An integrated voltage reference eases design considerations. A duty cycle stabilizer (DCS) is provided to compensate for variations in the ADC clock duty cycle, allowing the converter to maintain excellent performance.

The ADC output data are routed directly to the external 12-bit LVDS output port.

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 AD9634 is available in a 32-lead LFCSP and is specified over the industrial temperature range of −40°C to +85°C. This product is protected by a U.S. patent.

APPLICATIONS

  • Communications
  • Diversity radio systems
  • Multimode digital receivers (3G)
    TD-SCDMA, WiMax, WCDMA,
    CDMA2000, GSM, EDGE, LTE
  • I/Q demodulation systems
  • Smart antenna systems
  • General-purpose software radios
  • Ultrasound equipment
  • Broadband data applications

PRODUCT HIGHLIGHTS

  1. Integrated 12-bit, 170 MSPS/210 MSPS/250 MSPS ADC.
  2. Fast overrange and threshold detect.
  3. Proprietary differential input maintains excellent SNR performance for input frequencies up to 350 MHz.
  4. 3-pin, 1.8V SPI port for register programming and readback.
  5. Pin compatibility with the AD9642, allowing a simple migration up to 14 bits, and with the AD6672.

FEATURES and BENEFITS

  • SNR = 69.7 dBFS at 185 MHz AIN and 250 MSPS
  • SFDR = 87 dBc at 185 MHz AIN and 250 MSPS
  • −150.6 dBFS/Hz input noise at 185 MHz, −1 dBFS AIN and
    250 MSPS
  • Total Power consumption:
    360 @ 250 MSPS
  • 1.8 V supply voltages
  • LVDS (ANSI-644 levels) outputs
  • Integer 1-to-8 input clock divider (625 MHz maximum input)
  • Sample rates of up to
    250 MSPS
  • IF sampling frequencies of up to 350 MHz
  • Internal ADC voltage reference
  • Flexible analog input range
    1.4 V p-p to 2.0 V p-p
    (1.75 V p-p nominal)
  • See data sheet for additional features

Functional Block Diagram for AD9634

Documentation

Title Content Type File Type
AD9634: 12-Bit, 170 MSPS/210 MSPS/250 MSPS, 1.8 V Analog-to-Digital Converter Data Sheet (Rev A, 07/2014) (pdf, 1585 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-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-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-803: Pin Compatible High Speed ADCs Simplify Design Tasks  (pdf, 356 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-741: Little Known Characteristics of Phase Noise  (pdf, 1679 kB) Application Notes PDF
UG-386: Evaluating the AD9642/AD9634/AD6672 Analog-to-Digital Converters  (pdf, 3293 kB) User Guides PDF
AD9634 Quick Start Guide  (pdf, 165 kB) User Guides PDF
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
AD9634 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 AD9634

  • For differential RF/IF, we recommend the ultra low distortion ADL5562.
  • For a fully differential input and output DVGA in digital communications systems, we recommend the ADL5202 or the AD8376.
Recommended Clock Drivers for the AD9634

  • For low jitter performance and integrated VCO, we recommend one of the AD9520-0 or AD9522-0 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

AD9634 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD9634BCPZ-170 Status: Production 32 ld LFCSP (5x5x.1.55mm) w/3.6exposed pad 32 Ind Tray, 490 $23.94 $20.35 Y  Material Info Notify Me Purchase
AD9634BCPZ-210 Status: Production 32 ld LFCSP (5x5x.1.55mm) w/3.6exposed pad 32 Ind Tray, 490 $34.41 $29.25 Y  Material Info Notify Me Purchase
AD9634BCPZ-250 Status: Production 32 ld LFCSP (5x5x.1.55mm) w/3.6exposed pad 32 Ind Tray, 490 $41.47 $35.25 Y  Material Info Notify Me Purchase
AD9634BCPZRL7-170 Status: Production 32 ld LFCSP (5x5x.1.55mm) w/3.6exposed pad 32 Ind Reel, 1500 - $20.35 Y  Material Info Notify Me Purchase
AD9634BCPZRL7-210 Status: Production 32 ld LFCSP (5x5x.1.55mm) w/3.6exposed pad 32 Ind Reel, 1500 - $29.25 Y  Material Info Notify Me Purchase
AD9634BCPZRL7-250 Status: Production 32 ld LFCSP (5x5x.1.55mm) w/3.6exposed pad 32 Ind Reel, 1500 - $35.25 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.

AD9634 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
AD9634-170EBZ Status: Production Evaluation Board $300.00 Yes -
AD9634-210EBZ Status: Production Evaluation Board $300.00 Yes -
AD9634-250EBZ 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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