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40 lines
1.0 KiB

  1. LA-55:
  2. DAC full range is 40A
  3. Actual bits is 16
  4. Stable bits is ~21
  5. CT full range is 55 A (FR + 0.5 bits)
  6. CT used range is 100 mA (FR - 8.5 bits)
  7. ADC resolution over used range is about 8.5 bits
  8. Which would give us (FR - 17 bits)
  9. -- IF the LA-55 can measure 300uA.
  10. This would be 17.5 bits at its full range.
  11. Spec is around 1% = 7 bits.
  12. CT-0.1:
  13. DAC full range is 60A
  14. Actual bits is 16
  15. Stable bits is ~21
  16. CT range is 5 mA (FR - 13 bits)
  17. ADC resolution over this range is about 8.5 bits
  18. Which would give us (FR - 21.5 bits)
  19. -- IF the CT-0.1 worked at all.. it's broken.
  20. It would be measuring 20uA.
  21. This would be 12.2 bits at its full range.
  22. Spec is around 1% = 7 bits.
  23. A6302:
  24. DAC full range is 20A
  25. Actual bits is 16
  26. Stable bits is ~21
  27. CT range is 180mA (FR - 6.8 bits)
  28. ADC resolution over this range is about 11 bits
  29. Which would give us (FR - 17.8 bits)
  30. -- Except CT resolution is only about 4 bits at this range.
  31. Which gives us 10.8 total, at best.