SBAA507 March   2021 ADS8578S , ADS8584S , ADS8586S , ADS8588H , ADS8588S , ADS8598H , ADS8598S , ADS8661 , ADS8664 , ADS8665 , ADS8668 , ADS8671 , ADS8674 , ADS8675 , ADS8678 , ADS8681 , ADS8684 , ADS8684A , ADS8685 , ADS8688 , ADS8688A , ADS8688AT , ADS8689 , ADS8691 , ADS8694 , ADS8695 , ADS8698 , ADS8699 , OPA2990 , OPA4990 , OPA990

 

  1.   1
  2.   Design Description
  3.   Specifications
  4.   Design Notes
  5.   Component Selection
  6.   DC Transfer Characteristics
  7.   Simulation Verification for Floating Input
  8.   AC Transfer Characteristics
  9.   Noise Simulation
  10.   Stability Simulation
  11.   Design References
  12.   Design Featured Devices

DC Transfer Characteristics

The following graph shows a linear output response of the front-end circuit for input from single-ended –12.88V to +12.88V. See Determining a SAR ADC’s Linear Range when using Instrumentation Amplifiers for detailed theory on this subject. The full-scale range (FSR) of the ADC falls within the linear range of the amplifier (OPA990).

GUID-20210316-CA0I-T0LX-L4DH-CRR0GWRS2T82-low.gif