1. Products
  2. A/D Converters (ADC)
  3. High Speed A/D Converters >10 MSPS
  4. Standard High Speed A/D Converters
  5. AD9245


Features and Benefits

  • Single 3 V supply operation (2.7 V to 3.6 V)
  • Low power
    366 mW at 80 MSPS
    300 mW at 65 MSPS
    165 mW at 40 MSPS
    90 mW at 20 MSPS
  • SNR = 72.7 dBc to Nyquist at 80 MSPS
  • SFDR = 83.0 dBc to Nyquist at 80 MSPS
  • Differential input with 500 MHz bandwidth
  • On-chip reference and sample-and-hold
  • DNL = ±0.5 LSB at 80 MSPS
  • See datasheet for additional features

Product Details

The AD9245 is a monolithic, single 3 V supply, 14-bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS analog-to-digital (ADC) converter featuring a high performance sample-and-hold amplifier (SHA) and voltage reference. The AD9245 uses a multistage differential pipelined architecture with output error correction logic to provide 14-bit accuracy and guarantee no missing codes over the full operating temperature range.

The wide bandwidth, truly differential SHA allows a variety of user-selectable input ranges and common modes, 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 analog-to-digital converters, the AD9245 is suitable for applications in communications, imaging, and medical ultrasound.

A single-ended clock input is used to control all internal con-version 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 straight binary or twos complement formats. An out-of-range (OTR) signal indicates an overflow condition that can be used with the most significant bit to determine low or high overflow. Fabricated on an advanced CMOS process, the AD9245 is available in a 32-lead LFCSP and is specified over the industrial temperature range (–40°C to +85°C).


  1. The AD9245 operates from a single 3 V power supply and features a separate digital output driver supply to accommodate 2.5 V and 3.3 V logic families.
  2. The patented SHA input maintains excellent performance for input frequencies up to 100 MHz and can be configured for single-ended or differential operation.
  3. The AD9245 is pin-compatible with the AD9215, AD9235, and AD9236. This allows a simplified migration from 10 bits to 14 bits and 20 MSPS to 80 MSPS.
  4. The clock DCS maintains overall ADC performance over a wide range of clock pulse widths.
  5. The OTR output bit indicates when the signal is beyond the selected input range.


  • Medical imaging equipment
  • IF sampling in communications receivers
    WCDMA, CDMA-One, CDMA-2000, and TDS-CDMA
  • Battery-powered instruments
  • Hand-held scopemeters
  • Spectrum analyzers
  • Power-sensitive military applications

Product Lifecycle icon-recommended 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 (1)

Documentation & Resources

  • View All (22)
  • Data Sheets (1)
  • Application Notes (16)
  • Technical Articles (5)
  • Application Notes

    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.


    Design Tools

    Visual Analog

    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.

    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.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    AD9245BCPZ-20 Material Declaration Reliability Data 32-Lead LFCSP (5mm x 5mm w/ EP)
    AD9245BCPZ-40 Material Declaration Reliability Data 32-Lead LFCSP (5mm x 5mm w/ EP)
    AD9245BCPZ-65 Material Declaration Reliability Data 32-Lead LFCSP (5mm x 5mm w/ EP)
    AD9245BCPZ-80 Material Declaration Reliability Data 32-Lead LFCSP (5mm x 5mm w/ EP)
    AD9245BCPZRL7-20 Material Declaration Reliability Data 32-Lead LFCSP (5mm x 5mm w/ EP)
    AD9245BCPZRL7-40 Material Declaration Reliability Data 32-Lead LFCSP (5mm x 5mm w/ EP)
    AD9245BCPZRL7-65 Material Declaration Reliability Data 32-Lead LFCSP (5mm x 5mm w/ EP)
    AD9245BCPZRL7-80 Material Declaration Reliability Data 32-Lead LFCSP (5mm x 5mm w/ EP)
    Wafer Fabrication Data

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    Sample & Buy

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