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HI7188 - Sigma-Delta A/D Sub-System

Description

The HI7188 is an easy-to-use 8-Channel sigma-delta programmable A/D subsystem ideal for low frequency physical and electrical measurements in scientific, medical, and industrial applications.

Features

  • Fully Differential 8-Channel Multiplexer and Reference.
  • Automatic Channel Switching with Zero Latency.
  • 240 Conversions Per Second Per Channel.
  • 16-Bit Resolution with No Missing Codes.
  • 0.0015% Integral Non-Linearity.
  • Fully Software Configurable - -120dB Rejection of 60/50Hz Line Noise - Channel Conversion Order and Number of Active Channels - True Bipolar or Unipolar Input Range Per Channel - PGIA Gain Per Channel - 2-Wire or 3-Wire Interface.

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Full PDF Text Transcription

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HI7188 August 1997 8-Channel, 16-Bit, High Precision, Sigma-Delta A/D Sub-System Description The HI7188 is an easy-to-use 8-Channel sigma-delta programmable A/D subsystem ideal for low frequency physical and electrical measurements in scientific, medical, and industrial applications. The subsystem has complete on-chip capabilities to support moving the intelligence from the system controller and towards the sensors. This gives the designer faster and more flexible configurability without the traditional drawbacks of low throughput per channel, higher power or cost per channel. Extreme design complexity and excessive software overhead is eliminated.
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