SLOA059B October   2022  – March 2023 OPA2991 , TLC2654 , TLC4502 , TLE2021 , TLV2721

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2Input Offset Voltage Defined
  5. 3Cause of VOS
  6. 4VOS and Temperature Drift in the Major Device Types
    1. 4.1 Bipolar
    2. 4.2 JFET
    3. 4.3 CMOS
  7. 5Manufacturer Measurement, Trim, and Specification of VOS
    1. 5.1 Measurement
    2. 5.2 Trim
    3. 5.3 Specifications
  8. 6Impact of VOS on Circuit Design and Methods of Correction
    1. 6.1 AC Coupling
    2. 6.2 DC Feedback
    3. 6.3 Internal Calibration
  9. 7Summary
  10. 8References
  11. 9Revision History

8 References

  1. Texas Instruments, Understanding Basic Analog – Ideal Op Amps, application report.
  2. Paul Gray and Robert Meyer, Analysis and Design of Analog Integrated Circuits, 3rd Edition, John Wiley and Sons, New York, NY, 1993.
  3. Jiří Dostál, Operational Amplifiers, 2nd Edition, Butterworth-Heinemann, Boston, MA, 1993.
  4. Texas Instruments, OPAx991 40-V Rail-to-Rail Input/Output, Low Offset Voltage, Low Noise Op Amp data sheet.
  5. Texas Instruments, Understanding Basic Analog - Circuit Equations, application report.
  6. Texas Instruments, Nulling Input Offset Voltage of Operational Amplifiers, application report.