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AD4170-4 - Low Noise Precision SigmaDelta ADC

Description

Specifications 5 Timing Characteristics 11 Absolute Maximum Ratings15 Thermal Resistance 15 ESD Caution15 Pin Configuration and Functions Description 16 Typical Performance Characteristics 19 RMS Noise and Resolution 29 Sinc5 + Avg29 Sinc3 30 Sinc5 31 Post Filters 31 Average by 16 Post Filter 32 F

Features

  • Precision AC and DC performance.
  • Noise RTI 5.5 nV/√Hz (gain = 128).
  • INL: ±0.5 ppm of FSR.
  • SNR 110 dB typical (VREF = 4.096 V, gain = 1 precharge, sinc5 filter).
  • THD:.
  • 120 dB typical.
  • Crosspoint multiplexed analog inputs.
  • 4 differential/8 pseudodifferential inputs.
  • Overvoltage/undervoltage tolerant on inactive analog inputs.
  • Channel scan data rate of 71.4 kSPS/channel (14 µs settling).
  • Ultra-low noise integrated PGA, gains of 0.5 to 128.

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Data Sheet AD4170-4 24-Bit, DC to 50 kHz Input Bandwidth, Multichannel, Low Noise Precision Sigma- Delta ADC with PGA FEATURES ► Precision AC and DC performance ► Noise RTI 5.5 nV/√Hz (gain = 128) ► INL: ±0.5 ppm of FSR ► SNR 110 dB typical (VREF = 4.096 V, gain = 1 precharge, sinc5 filter) ► THD: −120 dB typical ► Crosspoint multiplexed analog inputs ► 4 differential/8 pseudodifferential inputs ► Overvoltage/undervoltage tolerant on inactive analog inputs ► Channel scan data rate of 71.4 kSPS/channel (14 µs settling) ► Ultra-low noise integrated PGA, gains of 0.5 to 128 ► Output data rate: 7.6 SPS to 500 kSPS ► Flexible digital filters ► Low ripple FIR: ±0.
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