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AD7172-2BRUZ
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AD7172-2BRUZ

  • Category:ADC analog-to-digital converter
  • Product Name:Low power, 24-bit, 31.25 KSPS, sigma-delta ADC with true rail-to-rail buffer
  • Manufacturers:AD
  • Production Batch Number:15+
  • Encapsulation:TSSOP 4.4 MM
  • Stock Status:There is stock
  • Stock Quantity:330
  • Minimum order quantity: 1
  • Details:点击查找AD7172-2BRUZ的pdf资料
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  • Product introduction

Advantages and features

  • Fast and flexible output rates: 1.25 SPS to 31.25 kSPS
  • Channel scan rate: 6.21 kSPS/channel (161 μs settling time)
  • Performance specifications
    No noise level at 31.25 kSPS: 17.2
    No noise bit at 5 SPS: 24
    INL: ± 2 ppm of FSR
  • 50 Hz and 60 Hz rejection: 85 dB with 50 ms settling time

  • User-configurable input channels
    2 fully differential channels or 4 single-ended channels
    Crosspoint multiplexer
  • 2.5 V on-chip reference (±2 ppm/°C drift)
  • True rail-to-rail analog and reference input buffers

  • Product details

    AD7172-2It is an intelligent, low-noise, low-power, multiplexed Σ-Δ typeAnalog-to-digital converters(ADC) with 2/4 channel (fully differential/single-ended) inputs for low bandwidth signals. For fully settled data, the AD7172-2 has a maximum channel scan rate of 6.21 kSPS (161 μs). The output data rate range is 1.25 SPS to 31.25 kSPS.

    The AD7172-2 integrates key analog and digital signal conditioning blocks that allow the user to configure each analog input channel in use individually via SPI. Integrated true rail-to-rail buffers at the analog input and external reference input provide a high-impedance input that is easy to drive. A precision 2.5 V low drift (f2 ppm/°C) bandgap internal reference with output reference buffer adds embedded functionality while reducing external component count.

    The digital filter allows simultaneous 50 Hz/60 Hz rejection at an output data rate of 27.27 SPS. The user can switch between different filter options based on the needs of each channel in the application, and further digital processing functions, such as offset and gain calibration registers, can also be configured per channel. General-purpose input/output (GPIO) controls an external multiplexer and synchronizes to the ADC conversion timing.

    The AD7172-2 is specified over the −40°C to +105°C temperature range and is available in a 24-lead TSSOP package.

    Note that throughout the data sheet, only the relevant function refers to the dual-function pin name.

    apply

    • Process control: PLC/DCS module
      Temperature and pressure measurement
    • Medical & Scientific Multichannel Instrumentation
    • Chromatography machine

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