Data Sheet Rev. E
CN Rev. D | JP Rev. A
User Guides
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Circuit Note
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Evaluation Software
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Overview

Features and Benefits

  • Specified for VDD of 2.7 V to 5.25 V
  • Flexible power/throughput rate management
  • Shutdown mode: 1 μA max
  • One or two single-ended inputs
  • Serial interface: SPI®/QSPI™/MICROWIRE™/DSP compatible
  • 8-lead narrow SOIC and MSOP packages

Product Details

The AD7887 is a high speed, low power, 12-bit analog-to-digital converter (ADC) that operates from a single 2.7 V to 5.25 V power supply. The AD7887 is capable of 125 kSPS throughput rate. The input track-and-hold acquires a signal in 500 ns and features a single-ended sampling scheme. The output coding for the AD7887 is straight binary, and the part is capable of converting full power signals of up to 2.5 MHz.

The AD7887 can be configured for either dual- or single-channel operation via the on-chip control register. There is a default single-channel mode that allows the AD7887 to be operated as a read-only ADC. In single-channel operation, there is one analog input (AIN0) and the AIN1/VREF pin assumes its VREF function. This VREF pin allows the user access to the part’s internal 2.5 V reference, or the VREF pin can be overdriven by an external reference to provide the reference voltage for the part. This external reference voltage has a range of 2.5 V to VDD. The analog input range on AIN0 is 0 to VREF.

In dual-channel operation, the AIN1/VREF pin assumes its AIN1 function, providing a second analog input channel. In this case, the reference voltage for the part is provided via the VDD pin. As a result, the input voltage range on both the AIN0 and AIN1 inputs is 0 to VDD.

CMOS construction ensures low power dissipation of typically 2 mW for normal operation and 3 μW in power-down mode. The part is available in an 8-lead, 0.15-inch-wide narrow body SOIC and an 8-lead MSOP package.

Product Highlights
  1. Smallest 12-bit dual-/single-channel ADC; 8-lead MSOP package.
  2. Lowest power 12-bit dual-/single-channel ADC.
  3. Flexible power management options, including automatic power-down after conversion.
  4. Read-only ADC capability.
  5. Analog input range from 0 V to VREF.
  6. Versatile serial input/output port (SPI/QSPI/MICROWIRE/ DSP compatible).

Applications
  • Battery-powered systems (personal digital assistants, medical instruments, mobile communications)
  • Instrumentation and control systems
  • High speed modems

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    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

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  • Data Sheets (1)
  • User Guides (1)
  • Circuit Note (2)
  • Technical Articles (3)
    • Document Type

    Software & Systems Requirements

    Evaluation Software

    ZIP
    313.79 M

    AD7887 Evaluation Software

    Device Drivers

    WIKI

    AD7887 - Microcontroller No-OS Driver
    WIKI

    AD7887 IIO ADC Linux Driver

    FPGA/HDL

    WIKI

    CN0150 FMC-SDP Interposer & Evaluation Board / Xilinx KC705 Reference Design
    WIKI

    CN-0189 FMC-SDP Interposer & Evaluation Board / Xilinx KC705 Reference Design
    WIKI

    BeMicro FPGA Project for CN0150 with Nios driver

    Reference Designs (2)

    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.

    AD7887 Material Declaration
    Quality And Reliability
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    Support & Discussions

    AD7887 Discussions

    RE: ADRV9002 Kernel Module Support
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    RE: QEC INIT
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