Precision Low Power Signal Chains【转自ADI】

• An Introduction to Biopotential Measurement Challenges
  • Why Biopotentials?
  • Biopotential Overview
• To AC, or not to AC (Couple). That is the Question
  • AC Coupled Signal Chain
  • DC Coupled Signal Chain
• A Unique AC Coupled Solution with Configurability
  • An Improved Variation
  • Flexibility for Different Filter Configurations
  • Fast Restore Overview
  • What About the ADC?
• Introducing an Ultra-Low Power, DC Coupled Input Signal Chain
  • Low Power at the System Level
  • A DC Coupled Solution for Biopotential Measurements
• Understanding CMRR and RLD in Biopotential Signal Chains
  • Input Biasing
  • Common Mode Rejection Ratio (CMRR)
  • System CMRR
  • Right Leg Drive
• Dry Electrode Challenges in Biopotential Signal Chains
  • Electrode Model
  • Managing Dry Electrodes
• Lead Off Detection in Biopotential Signal Chains
  • Two Electrode DC Lead Off Detection
  • Three Electrode DC Lead Off Detection
  • AC Lead Off Detection