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Analog Devices Inc. AD7617 Data Acquisition Solutions

Analog Devices Inc. AD7617 Data Acquisition Solutions (DAS) support dual simultaneous sampling of 16 channels. The AD7617 includes analog input clamp protection, a dual, 14-bit charge redistribution SAR ADC, a flexible digital filter, a 2.5V reference and reference buffer, and high-speed serial and parallel interfaces.

Operating from a single +5V supply, the AD7617 DAS can accommodate ±10V, ±5V, and ±2.5V true bipolar input signals while sampling at throughput rates up to 1MSPS per channel pair with 85dB signal-to-noise ratio (SNR). AD7617 can achieve higher SNR performance with the on-chip oversampling mode. Regardless of the sampling frequency, the AD7617 has a 1MΩ analog input impedance. Analog Devices AD7617's single-supply operation, on-chip filtering, and high-input impedance eliminate the need for driver op-amps and external bipolar supplies.

Features

  • Supports dual simultaneous sampling of 16 channels
  • Independently Selectable Channel Input Ranges
    • ±10V, ±5V, and ±2.5V true bipolar
  • Single 5V analog supply and 2.3V to 3.6V VDRIVE supply
  • Fully Integrated Data Acquisition Solution
    • Analog input clamp protection
    • Input buffer with 1MΩ analog input impedance
    • First-order anti-aliasing analog filter
    • On-chip accurate reference and reference buffer
    • Dual 14-bit successive approximation register (SAR) ADC
    • 2x 1MSPS per channel pair throughput rate
    • Oversampling capability with digital filter
    • Flexible sequencer with burst mode
  • Flexible Parallel/Serial Interface
    • SPI/QSPI/MICROWIRE/DSP compatible
    • Optional Cyclic Redundancy Check (CRC) error checking
  • Hardware/software configuration
  • Performance
    • 85.3dB SNR @ 500kSPS (2x oversampling)
    • 85dB SNR @ 1MSPS
    • -103dB THD @ ±10V range
    • ±0.3LSB INL (typical) and ±0.99LSB DNL (maximum)
    • 8kV ESD rating on analog input channels
  • On-chip self detect function
  • 80-lead LQFP package

Applications

  • Power line monitoring
  • Protective relays
  • Multiphase motor control
  • Instrumentation and control systems
  • Data Acquisition Systems (DASs)

Block Diagram

Block Diagram - Analog Devices Inc. AD7617 Data Acquisition Solutions

Associated Product

ADCs AD761x

Analog Devices Inc. ADCs AD761x

ADCs de amostragem simultânea de 16 bits e solução de aquisição de dados (DAS) totalmente integrada.

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Publicado: 2017-12-29 | Atualizado: 2022-05-12