AD7177-2BRUZ

• Product introduction

Advantages and features

• 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 buffer
• Internal or external clock

• Product details

  AD7177-2It is a 32-bit low noise, fast settling, multiplexed, 2/4-channel (fully differential/pseudo differential) Σ-ΔAnalog-to-digital converters(ADC) for low bandwidth inputs. For fully settled data, the device has a maximum channel scan rate of 10 kSPS (100 μs). The output data rate range is 5 SPS to 10 kSPS.

  The AD7177-2 integrates key analog and digital signal conditioning blocks that allow the user to configure individually for each analog input channel used. The user can select functions individually for each channel. 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 (2 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. The ADC automatically switches between each selected channel. Further digital processing features include offset and gain calibration registers, which can be configured on a per-channel basis.
  
  The device operates from 5 V AVDD1 or ±2.5 V AVDD1/AVSS and 2 V to 5 V AVDD2 and IOVDD supplies. The AD7177-2 is specified for operation over the –40°C to +105°C temperature range and is available in a 24-lead TSSOP package.
  
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  • Process control: PLC/DCS module
  • Temperature and pressure measurement
  • Medical & Scientific Multichannel Instrumentation
  • Chromatography machine