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AD9254:  14-Bit, 150 MSPS, 1.8 V Analog-to-Digital Converter

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 ...More

AD9254:  14-Bit, 150 MSPS, 1.8 V Analog-to-Digital Converter

Product Description

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).

Product Highlights

  1. The AD9254 operates from a single 1.8 V power supply and features a separate digital output driver supply to accommodate 1.8 V to 3.3 V logic families.
  2. The patented SHA input maintains excellent performance for input frequencies up to 225 MHz.
  3. The clock DCS maintains overall ADC performance over a wide range of clock pulse widths.
  4. A standard serial port interface supports various product features and functions, such as data formatting (offset binary, twos complement, or Gray coding), enabling the clock DCS, power-down, and voltage reference mode.
  5. The AD9254 is pin-compatible with the AD9233, allowing a simple migration from 12 bits to 14 bits.

Applications

  • Ultrasound equipment
  • IF sampling in communications receivers
    CDMA2000, WCDMA, TD-SCDMA, and WiMax
  • Battery-powered instruments
  • Hand-held scopemeters
  • Low cost digital oscilloscopes
  • Macro, micro, and pico cell infrastructure

RESOURCES & TOOLS

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EVALUATION BOARDS & DEVELOPMENT KITS

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TOOLS, SOFTWARE & SIMULATION MODELS

  • 1.8 V analog supply operation
  • 1.8 V to 3.3 V output supply
  • SNR = 71.8 dBc (72.8 dBFS) to 70 MHz input
  • SFDR = 84 dBc to 70 MHz input
  • Low power: 430 mW @ 150 MSPS
  • Differential input with 650 MHz bandwidth
  • On-chip voltage reference and sample-and-hold amplifier
  • DNL = ±0.4 LSB
  • Flexible analog input: 1 V p-p to 2 V p-p range
  • Offset binary, Gray code, or twos complement data format
  • Clock duty cycle stabilizer
  • Data output clock
  • Resolution (Bits): 14bit
  • T-Put Rate: 150MSPS
  • # Chan: 1
  • Supply V: Multi(+1.8Anlg, +1.8Dig),Multi(+1.8Anlg, +3.3Dig) ,Single(+1.8)
  • Pwr Diss: 470mW
  • Interface: Par
  • Ain Range: (2Vref) p-p,1 V p-p,2 V p-p
  • SNR (dB): 72dB
  • Pkg Type: CSP

Functional Block Diagram for AD9254

Circuits from the Lab

Find more at our Circuits Library.

Of Note ...

To drive this ADC in DC-coupled applications, we suggest ADA4937-1 or ADA4938-1. To drive this ADC in AC-coupled applications, we suggest AD8352 or AD8375.

Similar Products

arrow View Full Interactive Product Selection Table
Part# Bits Throughput Rate # of Inputs Operating Pwr Diss
AD9254 14 150MSPS 1 470mW
AD9626-170 12 170MSPS 1 291mW
AD9261-10 16 160MSPS 1 375mW
AD9230-250 12 250MSPS 1 434mW
AD9626-250 12 250MSPS 1 390mW
AD9230-170 12 170MSPS 1 349mW
AD9211-200 10 200MSPS 1 356mW
AD9601-200 10 200MSPS 1 344mW
AD9211-300 10 300MSPS 1 468mW
AD9230-11 11 200MSPS 1 400mW
AD9246-125 14 125MSPS 1 458mW
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Pricing, Packaging & Availability

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Model
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Status
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  • 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).
Package Description
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
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.

Temperature Range
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
Price
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.

Production Availability
This is the date Analog Devices, Inc. anticipates that the product will ship from the warehouse. Most orders ship within 48 hours of this date.Once an order has been placed, Analog Devices, Inc. will send an Order Acknowledgement email to confirm your delivery date. It is important to note the scheduled dock date on the order entry screen. We do take orders for items that are not in stock, so delivery may be scheduled at a future date. Also, please note the warehouse location for the product ordered. We have warehouses in the United States, Europe and Southeast Asia. Transit times from these sites may vary.
Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

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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.

View PCN
This is the list of Product Change Notifications (PCN) published on the web for this model. Click on the link to access PCN Information.Only select pre-2009 PCN�s are available on-line. To obtain a pre-2009 PCN, contact your ADI Sales Rep. For more information on ADI's PCN process, please visit our PCN Policy Statement page

*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.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.