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AD9445:  14-Bit, 105 MSPS / 125 MSPS A/D Converter

The AD9445 is a 14-bit monolithic, sampling analog-to-digital converter (ADC) with an on-chip, IF sampling track-and-hold circuit and is optimized for power, small size, and ease of use. The product operates at up to an 105 MSPS conversion rate and is optimized for multi-carrier, multimode receivers, such as those found in cellular infrastructure equipment.

The ADC requires 3.3 V and 5.0 V ...More

AD9445:  14-Bit, 105 MSPS / 125 MSPS A/D Converter

Product Description

The AD9445 is a 14-bit monolithic, sampling analog-to-digital converter (ADC) with an on-chip, IF sampling track-and-hold circuit and is optimized for power, small size, and ease of use. The product operates at up to an 105 MSPS conversion rate and is optimized for multi-carrier, multimode receivers, such as those found in cellular infrastructure equipment.

The ADC requires 3.3 V and 5.0 V power supplies and a low voltage differential input clock for full performance operation. No external reference or driver components are required for many applications. Data outputs are LVDS-compatible (ANSI-644) or CMOS-compatible and include the means to reduce the overall current needed for short trace distances.

Optional features allow users to implement various selectable operating conditions, including data format select and output data mode.

The AD9445 is available in a 100-lead surface-mount plastic package (100-lead TQFP/EP) specified over the industrial temperature range (−40°C to +85°C).

Product Highlights
1. High performance: Outstanding SFDR performance for multicarrier, multimode 3G and 4G cellular base station receivers.
2. Ease of use: On-chip reference and track-and-hold. An output clock simplifies data capture.
3. Packaged in a Pb-free, 100-lead TQFP/EP.
4. Clock duty cycle stabilizer (DCS) maintains overall ADC performance over a wide range of clock pulse widths.
5. OR (out-of-range) outputs indicate when the signal is beyond the selected input range.

Applications

  • Multi-carrier, multimode cellular receivers
  • Antenna array positioning
  • Power amplifier linearization
  • Broadband wireless
  • Radar, infrared imaging
  • Medical Imaging
  • Communications instrumentation

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    • 125 MSPS guaranteed sampling rate (AD9445BSV-125)
    • 100 dB two-tone SFDR with 30 MHz and
      31 MHz
    • 73.5 dB SNR with 70 MHz input
    • 85 dBc SFDR with 225 MHz input
    • Excellent linearity
      DNL = ±0.25 LSB typical
      INL = ±0.8 LSB typical
    • 2.3 W power dissipation
    • 3.3 V and 5 V supply operation
    • 2.0 V p-p to 3.2 V p-p differential full-scale input
    • LVDS outputs (ANSI-644 compatible) or CMOS outputs
    • Data format select (Offset Binary or 2’s compliment)
    • Output clock available
    • Resolution (Bits): 14bit
    • T-Put Rate: 125MSPS
    • # Chan: 1
    • Supply V: Multi(+3.3, +5)
    • Pwr Diss: 2.6W
    • Interface: Par
    • Ain Range: (2Vref) p-p,2 V p-p,3.2 V p-p
    • SNR (dB): 77.6dB
    • Pkg Type: QFP

    Functional Block Diagram for AD9445

    Circuits from the Lab

    Find more at our Circuits Library.

    Of Note ...

    To drive this ADC in DC-coupled applications, we suggest 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
    AD9246-125 14 125MSPS 1 458mW
    AD9445-125 14 125MSPS 1 2.6W
    AD9254 14 150MSPS 1 470mW
    AD9640-125 14 125MSPS 2 910mW
    AD9640-150 14 150MSPS 2 1W
    AD9626-250 12 250MSPS 1 390mW
    AD9233-125 12 125MSPS 1 425mW
    AD9230-170 12 170MSPS 1 349mW
    AD9461 16 130MSPS 1 2.4W
    AD9261-10 16 160MSPS 1 375mW
    AD9433-125 12 125MSPS 1 1.5W
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    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.

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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.

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    *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.