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AD9434
12-Bit, 370 MSPS/500 MSPS, 1.8 V Analog-to-Digital Converter
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Overview
Features and Benefits
- SNR = 65 dBFS at fIN up to 250 MHz at 500 MSPS
- ENOB of 10.5 bits at fIN up to 250 MHz at 500 MSPS (−1.0 dBFS)
- SFDR = −78 dBc at fIN up to 250 MHz at 500 MSPS (−1.0 dBFS)
- Integrated input buffer
- Excellent linearity
- DNL = ±0.5 LSB typical
- INL = ±0.6 LSB typical
- LVDS at 500 MSPS (ANSI-644 levels)
- 1 GHz full power analog bandwidth
- On-chip reference, no external decoupling required
- Low power dissipation
- 690 mW at 500 MSPS—LVDS SDR mode
- 660 mW at 500 MSPS—LVDS DDR mode
- Programmable (nominal) input voltage range
- 1.18 V p-p to 1.6 V p-p, 1.5 V p-p nominal
- 1.8 V analog and digital supply operation
- Selectable output data format (offset binary, twos complement, Gray code)
- Clock duty cycle stabilizer
- Integrated data clock output with programmable clock and data alignment
Product Details
The AD9434 is a 12-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 AD9434 is available in a 56-lead LFCSP, specified over the industrial temperature range (−40°C to +85°C). This part is protected under a U.S. patent.
APPLICATIONS
- Wireless and wired broadband communications
- Cable reverse path
- Communications test equipment
- Radar and satellite subsystems
- Power amplifier linearization
PRODUCT HIGHLIGHTS
- High Performance.
Maintains 65 dBFS SNR at 500 MSPS with a 250 MHz input. - Low Power.
Consumes only 660 mW at 500 MSPS. - Ease of Use.
LVDS output data and output clock signal allow interface to current FPGA technology. The on-chip reference and sample and hold provide flexibility in system design. Use of a single 1.8 V supply simplifies system power supply design. - Serial Port Control.
Standard serial port interface supports various product functions, such as data formatting, power-down, gain adjust, and output test pattern generation. - The AD9434 is pin compatible with the AD9230, and can be substituted in many applications with minimal design changes.
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Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
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Documentation
Application Notes (11)
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Software & Systems Requirements
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Tools & Simulations
Virtual Eval - BETA
Virtual Eval is a web application to assist designers in product evaluation of ADCs, DACs, and other ADI products. Using detailed models on Analog’s servers, Virtual Eval simulates crucial part performance characteristics within seconds. Configure operating conditions such as input tones and external jitter, as well as device features like gain or digital down-conversion. Performance characteristics include noise, distortion, and resolution, FFTs, timing diagrams, response plots, and more.
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Design Tools
For designers who are selecting or evaluating high speed ADCs, VisualAnalog™ is a software package that combines a powerful set of simulation and data analysis tools with a user-friendly graphical interface.
ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.
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Reference Materials
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Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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Sample & Buy
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.
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