SBOA586 February   2024 OPA182 , OPA186 , OPA187 , OPA188 , OPA189 , OPA333 , OPA387 , OPA388

 

  1.   1
  2.   Abstract
  3. 1 Benefit of Zero-Drift Amplifiers
  4. 2 Internal Operation of Choppers
  5. 3 Chopping Input Current Transients
  6. 4 Bias Current Translation Into Offset
  7. 5 Chopping Current Transient Impact on Offset Voltage
  8. 6 Input Bias Current versus Bias Transients
  9. 7 Amplifier Intrinsic Noise
  10. 8 Chopper Transient Noise
  11. 9 Procedure for Selecting a Zero-Drift Amplifier
  12. 10Summary
  13. 11References

11 References

  • Kaslikar, Piyush. Interview and discussions on chopper amplifier design, 7 December, 2023
  • Burt, R., Zhang, J., 2006, “A Micropower Chopper-Stabilized Operational Amplifier Using a SC Notch Filter With Synchronous Integration Inside the Continuous-Time Signal Path”, IEEE Journal of Solid-State Circuits, Vol. 41, No. 12, December 2006, https://ieeexplore.ieee.org/document/4014603
  • Caldwell, J., Intrinsic Noise Sources in Chopper Amplifiers, Version 4, March 2013, PowerPoint Presentation
  • Kugelstadt, T., “New zero-drift amplifier has an IQ of 17 µA”, Analog Applications Journal, 2Q 2007,
    http://www.ti.com/lit/pdf/slyt272