To drive this ADC in DC-coupled applications, we suggest ADA4938-1. To drive this ADC in AC-coupled applications, we suggest AD8351. To select a VGA to use with this ADC, please visit our VGA selection table.

The AD9252 is an octal, 14-bit, 50 MSPS ADC with an on-chip sample-and-hold circuit designed for low cost, low power, small size, and ease of use. Operating at a conversion rate of up to 50 MSPS, it 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 (DCO) for capturing data on the output and a frame clock (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 AD9252 is available in an RoHS compliant, 64-lead LFCSP. It is specified over the industrial temperature range of −40°C to +85°C.

Product Highlights

1. Small Footprint. Eight ADCs are contained in a small package.
2. Low Power of 93.5 mW per Channel at 50 MSPS.
3. Ease of Use. A data clock output (DCO) operates up to 350 MHz and supports double data rate (DDR) operation.
4. User Flexibility. SPI control offers a wide range of flexible features to meet specific system requirements.
5. Pin-Compatible Family. This includes the AD9212 (10-bit) and AD9222 (12-bit).

Applications

Medical imaging and nondestructive ultrasound

Portable ultrasound and digital beam-forming systems

Quadrature radio receivers

Diversity radio receivers

Tape drives

Optical networking

Test equipment

Data Sheet, Rev. A, 12/07

Part#	Res	Throughput Rate	# of Inputs	Operating Pwr Diss
AD9252	14	50MSPS	8	773mW
AD9259	14	50MSPS	4	409mW
AD9640-80	14	80MSPS	2	492mW
AD9248-65	14	65MSPS	2	700mW
AD9246-125	14	125MSPS	1	458mW
AD9254	14	150MSPS	1	470mW
AD9244-65	14	65MSPS	1	640mW
AD9245	14	80MSPS	1	414mW
AD9246-105	14	105MSPS	1	458mW
AD7856	14	285KSPS	8	89.25mW
AD9228-65	12	65MSPS	4	510mW

The model number is a specific version of a generic that can be purchased or sampled.

Status indicates the current lifecycle of the product. This can be one of 4 stages:

• Pre-Release: The model has not been released to general production, but samples may be available.
• Production: The model is currently being produced, and generally available for purchase and sampling.
• Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
• Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).

The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

For detailed drawings and chemical composition please consult our  Package Site

Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

This is the acceptable operating range of the device. The various ranges specified are as follows:

• Commercial: 0 to +70 degrees Celsius
• Military : -55 to +125 degrees Celsius
• Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
• Automotive: -40 to +125 degrees Celsius

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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Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.