The AD9484 is an 8-bit, monolithic, sampling analog-to-digital converter (ADC) optimized for high performance, low power, and ease of use. The part operates at up to a 500 MSPS conversion rate and is optimized for outstanding dynamic performance in wideband carrier and broadband systems. All necessary functions, including a sample-and-hold and voltage reference, are included on the chip to provide a complete signal conversion solution. The VREF pin can be used to monitor the internal reference or provide an external voltage reference (external reference mode must be enabled through the SPI port).
The ADC requires a 1.8 V analog voltage supply and a differential clock for full performance operation. The digital outputs are LVDS (ANSI-644) compatible and support twos complement, offset binary format, or Gray code. A data clock output is available for proper output data timing.
Fabricated on an advanced BiCMOS process, the AD9484 is available in a 56-lead LFCSP, and is specified over the industrial temperature range (−40°C to +85°C). This product is protected under U.S. and international patents.
|Title||Content Type||File Type|
|AD9484: 8-Bit, 500 MSPS, 1.8 V Analog-to-Digital Converter (Rev A, 06/2011) (pdf, 600 kB)||Data Sheets|
|AN-1142: Techniques for High Speed ADC PCB Layout (pdf, 392 kB)||Application Notes|
|AN-878: High Speed ADC SPI Control Software (pdf, 585 kB)||Application Notes|
|AN-807: Multicarrier WCDMA Feasibility (pdf, 969 kB)||Application Notes|
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.
|AN-827: A Resonant Approach to Interfacing Amplifiers to Switched-Capacitor ADCs (pdf, 203 kB)||Application Notes|
|AN-877: Interfacing to High Speed ADCs via SPI (pdf, 1594 kB)||Application Notes|
|AN-905: VisualAnalog Converter Evaluation Tool Version 1.0 User Manual (pdf, 2124 kB)||Application Notes|
|AN-935: Designing an ADC Transformer-Coupled Front End (pdf, 363 kB)||Application Notes|
|AN-835: Understanding High Speed ADC Testing and Evaluation (pdf, 985 kB)||Application Notes|
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
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.
|AN-742: Frequency Domain Response of Switched-Capacitor ADCs (pdf, 401 kB)||Application Notes|
|AN-756: Sampled Systems and the Effects of Clock Phase Noise and Jitter (pdf, 291 kB)||Application Notes|
|UG-290: Evaluating the AD9434 and AD9484 Analog-to-Digital Converters (pdf, 1766 kB)||User Guides|
|MS-2210: Designing Power Supplies for High Speed ADC (pdf, 327 kB)||Technical Articles|
|Low-Power, 12-bit, 1.8-V A/D Converter Consumes Only 660 mW at 500 MSPS (19 Apr 2011)||Press Releases||HTML|
|Glossary of EE Terms||Glossary||HTML|
|Title||Content Type||File Type|
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|
|AD9434/AD9484 IBIS Model||IBIS Models||HTML|
Recommended Driver Amplifiers for the AD9484
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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.