Features and Benefits
- 4 ADCs integrated into 1 package
- 98 mW ADC power per channel at 50 MSPS
- SNR = 73 dB (to Nyquist)
- ENOB = 12 bits
- SFDR = 84 dBc (to Nyquist)
- Excellent linearity
- DNL = ±0.5 LSB (typical)
- INL = ±1.5 LSB (typical)
- Serial LVDS (ANSI-644, default)
- Low power, reduced signal option (similar to IEEE 1596.3)
- Data and frame clock outputs
- 315 MHz full-power analog bandwidth
- 2 V p-p input voltage range
- 1.8 V supply operation
- Serial port control
- Full-chip and individual-channel power-down modes
- Flexible bit orientation
- Built-in and custom digital test pattern generation
- Programmable clock and data alignment
- Programmable output resolution
- Standby mode
Product DetailsThe AD9259 is a quad, 14-bit, 50 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 50 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 AD9259 is available in a RoHS compliant, 48-lead LFCSP. It is specified over the industrial temperature range of −40°C to +85°C.
- Small Footprint. Four ADCs are contained in a small, space-saving package.
- Low power of 98 mW/channel at 50 MSPS.
- Ease of Use. A data clock output (DCO) operates at frequencies of up to 350 MHz and supports double data rate (DDR) operation.
- User Flexibility. The SPI control offers a wide range of flexible features to meet specific system requirements.
- Pin-Compatible Family. This includes the AD9287 (8-bit), AD9219 (10-bit), and AD9228 (12-bit).
- Medical imaging and nondestructive ultrasound
- Portable ultrasound and digital beam-forming systems
- Quadrature radio receivers
- Diversity radio receivers
- Tape drives
- Optical networking
- Test equipment
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (2)
This page contains evaluation board documentation and ordering information for evaluating the AD9259.
The HSC-ADC-EVALCZ high speed converter evaluation platform uses an FPGA based buffer memory board to capture blocks of digital data from the Analog Devices high speed analog-to-digital converter (ADC) evaluation boards. The board is connected to the PC through a USB port and is used with VisualAnalog® to quickly evaluate the performance of high speed ADCs. The evaluation kit is easy to set up. Additional equipment needed includes an Analog Devices high speed ADC evaluation board, a signal source, and a clock source. Once the kit is connected and powered, the evaluation is enabled instantly on the PC.
Features & Benefits
- 64kB FIFO Depth
- Works with single and multi-channel ADCs
- Use with VisualAnalog® software
- Based on Virtex-4 FPGA
- May require adaptor to interface with some ADC eval boards
- Allows programming of SPI control Up to 644 MSPS SDR / 800MSPS DDR Encode Rates on each channel
- DDR Encode Rates on each channel
Application Notes (16)
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.
AD9259 IBIS Models
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.
AD9259 Companion Parts
Recommended Driver Amplifiers
- For DC-coupled applications: ADA4938-2.
- For a differential VGA driver in baseband applications: AD8334.
- For AC-coupled applications: AD8352, ADA4939-2.
Recommended Clock Drivers
Recommended External Reference
- For improved thermal drift and gain accuracy: ADR130.
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.
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.