Содержание
- 2. Short Review of 3 Amp INA
- 3. Three Stage IA
- 4. Real World Input to Mathematical Model
- 5. Analyze the Input and Output Separately
- 6. Split Input Stage in Half
- 7. Use Superposition on Output Amp
- 8. Gain For Three Amp IA
- 9. Noise Model of 3 Amp INA
- 10. Complex Noise Model
- 11. The Complex Model is Simplified
- 12. The Input amplifier dominates at High Gain
- 13. Taken directly from the graph Calculated using graphs and formula Two Ways to represent INA Spectral
- 14. Hand Analysis of 3 Amp INA
- 15. Find the total RMS Noise Voltage at the Output
- 16. Look at Noise Sources: Bridge, INA333, Reference Buffer
- 17. Noise Equivalent Model for Reference Pin Buffer
- 18. Reference buffer
- 19. The reference voltage directly adds to the output noise
- 20. The bridge generates: thermal noise, in x R_bridge
- 21. Noise From Bridge / Current Sources
- 22. Combine all the noise sources
- 23. Rule of 3x
- 26. Calculate RMS Output Noise for INA333 From Voltage Noise
- 27. Simulation of 3 Amp INA
- 28. Simulate the Circuit
- 29. Using Tina Spice
- 30. Noise Spectral Density at the Output
- 31. Total RMS Noise at the Output
- 32. Bandwidth from Data Sheet and simulated bandwidth is different. The roll-off was approximated as first order
- 33. Reduce Noise Using Averaging Circuit
- 34. Averaging Circuit
- 35. Noise in Averaging Circuit
- 36. Averaging Circuit with INA333
- 37. OPA333 Averaging Circuit 20 INA333 amps in parallel (jumper selectable) Socketed Gain Set Resistors Experiment with
- 38. Linear Power Source Steel Paint Can for Shielding Standard Noise Measurement Precautions
- 39. Total Output Noise vs Number of Amplifiers Being Averaged
- 40. Measured vs simulated spectral density
- 41. [1] Hann, Gina. "Selecting the right op amp - Electronic Products." Electronic Products Magazine – Component
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