The AD9254 is a monolithic, single 1.8 V supply, 14-bit, 150 MSPS analog-to-digital converter (ADC), featuring a high performance sample-and-hold amplifier (SHA) and on-chip voltage reference. The product uses a multistage differential pipeline architecture with output error correction logic to provide 14-bit accuracy at 150 MSPS data rates and guarantees no missing codes over the full operating temperature range.
The wide bandwidth, truly differential SHA allows a variety of user-selectable input ranges and offsets, including single-ended applications. It is suitable for multiplexed systems that switch full-scale voltage levels in successive channels and for sampling single-channel inputs at frequencies well beyond the Nyquist rate. Combined with power and cost savings over previously available ADCs, the AD9254 is suitable for applications in communications, imaging, and medical ultrasound.
A differential clock input controls all internal conversion cycles. A 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 AD9254 is available in a 48-lead LFCSP_VQ and is specified over the industrial temperature range (−40°C to +85°C).
|Title||Content Type||File Type|
|AD9254: 14-Bit, 150 MSPS, 1.8 V Analog-to-Digital Converter Data Sheet (Rev 0, 11/2006) (pdf, 1671 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-282: Fundamentals of Sampled Data Systems (pdf, 2131 kB)||Application Notes|
|AN-737: How ADIsimADC Models an ADC (pdf, 373 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-835: Understanding High Speed ADC Testing and Evaluation (pdf, 985 kB)||Application Notes|
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-851: A WiMax Double Downconversion IF Sampling Receiver Design (pdf, 262 kB)||Application Notes|
|AN-742: Frequency Domain Response of Switched-Capacitor ADCs (pdf, 401 kB)||Application Notes|
|AN-715: A First Approach to IBIS Models: What They Are and How They Are Generated (pdf, 370 kB)||Application Notes|
|AN-756: Sampled Systems and the Effects of Clock Phase Noise and Jitter (pdf, 291 kB)||Application Notes|
AN-501: Aperture Uncertainty and ADC System Performance
(pdf, 227 kB)
A Key Concern in IF Sampling is that of Aperture Uncertainty (Jitter)
|MS-2210: Designing Power Supplies for High Speed ADC (pdf, 327 kB)||Technical Articles|
Hot Products: Single-Chip Cellphone, USB Flash Drive
(EE Times, 9/8/2006)
14-bit ADC Touts Best-In-Class SFDR At Half The Power Draw
ADC Hits Spurious-Free Dynamic Range Peak
(Electronic Design, 9/25/2006)
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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.
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|AD9254 IBIS Models||IBIS Models||HTML|
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.