AD7276:  3 MSPS,12-Bit ADC in 6-Lead TSOT

The AD7276 is a 12-bit, high speed, low power, successive-approximation ADC. The part operates from a single 2.35V to 3.6 V power supply and features throughput rates up to 3 MSPS. The part ...More

AD7276:  3 MSPS,12-Bit ADC in 6-Lead TSOT

Product Description

The AD7276 is a 12-bit, high speed, low power, successive-approximation ADC. The part operates from a single 2.35V to 3.6 V power supply and features throughput rates up to 3 MSPS. The part contains a low-noise, wide bandwidth track/hold amplifier which can handle input frequencies in excess of 30 MHz.

The conversion process and data acquisition are controlled using CS and the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS and the conversion is also initiated at this point. There are no pipeline delays associated with the part.

The AD7276 uses advanced design techniques to achieve very low power dissipation at high throughput rates.

The reference for the part is taken internally from VDD. This allows the widest dynamic input range to the ADC. Thus the analog input range for the part is 0 to DD. The conversion rate is determined by the SCLK

Applications

  • Battery-Powered Systems
    • - Personal Digital Assistants
    - Medical Instruments
    - Mobile Communications
  • Instrumentation and Control Systems
  • Data Acquisition Systems
  • High-Speed Modems
  • Optical Sensors

    • Features

    • Fast Throughput Rate: 3 MSPS
    • Specified for VDD of 2.35 V to 3.6 V
    • Low Power: 13.5 mW at 3 MSPS with 3 V Supplies
    • Wide Input Bandwidth: 70 dB SNR at 1 MHz Input Frequency
    • Flexible Power/Serial Clock Speed Management
    • No Pipeline Delays
    • High Speed Serial Interface
      SPI®/QSPI™/MICROWIRE™/DSP Compatible
    • Power Down Mode: 1 µA max
    • 6-Lead TSOT Package and 8-lead MSOP Package
    • AD7476 and AD7476A pin compatible
    • 10-Bit Version: AD7277
      8-Bit Version: AD7278

    Diagrams

    AD7276 Diagram
    Functional Block Diagram for AD7276

    Specifications

    Resolution (Bits) 12bit
    T-Put Rate 3MSPS
    # Chan 1
    Supply V Single(+2.5),Single(+3),Single(+3.3)
    Pwr Diss 19.8mW
    Interface Ser,SPI
    Ain Range Uni Vdd
    SNR (dB) 70dB
    Pkg Type SOP,SOT

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    Part# Bits Throughput Rate # of Inputs Operating Pwr Diss
    AD7276 12 3MSPS 1 19.8mW
    AD7277 10 3MSPS 1 19.8mW
    AD7278 8 3MSPS 1 19.8mW
    AD7482 12 3MSPS 1 90mW
    AD9235-20 12 20MSPS 1 110mW
    AD9237-20 12 20MSPS 1 120mW
    AD9223 12 3MSPS 1 130mW
    AD9237-65 12 65MSPS 1 270mW
    AD9626-170 12 170MSPS 1 291mW
    AD9220 12 10MSPS 1 310mW
    AD9233-105 12 105MSPS 1 350mW
    Pricing, Packaging & Availability

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

    RoHS Compliant
    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.

    *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.

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