1. 전자의료시스템 및 실습 ADC 구 환 경희대학교 전자정보대학 동서의료공학과

2. Analog-to-Digital Converter(ADC) Description - 아날로그 신호를 디지털 신호로 변경 - 중요한 요소 1. Sampling time 아날로그 신호의 시간 축으로 얼마나 조밀한 간격으로 아날로그 값을 디지털 값으로 변화시킬 것인가를 결정하는 단위 f s >= 2*f max 2. Quantization level 아날로그 신호의 신호 크기 축으로 얼마나 조밀한 간격으로 디지 털 값을 바꿀 것인가를 결정하는 단위 ex) 8 bit 의 경우 2 8 = 256 단계 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

3. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

4. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

5. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

6. Comparison of Single and Cascaded Operating Modes 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

7. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

8. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

9. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

10. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

11. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

12. Input Trigger Description Description - SOC(Start Of Conversion): ADC 시작 신호 - 변환이 시작되면 SOC SEQn bit 는 자동으로 clear 된다. - 현재 동작 중에 SOC 신호가 발생하면, SOC SEQn bit 가 set 되고, 한 번더 SOC 가 들어오게 되면 두 번째 것은 무시된다. - 한 번 변환이 시작되면 중간에 멈출 수는 없다. 약속된 변환이 끝나 거나 reset 을 이용해서만 변환이 멈출 수 있다. - Cascaded mode 에서는 SEQ1 만 사용된다. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

13. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

14. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

15. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

16. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

17. ADC Clock Pre-scaler(1) 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

18. ADC Clock Pre-scaler(2) 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

19. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

20. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

21. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

22. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

23. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

24. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

25. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

26. Reference Voltage Bit Selection 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

27. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

28. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

29. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

30. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

31. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

32. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

33. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

34. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

35. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

36. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

37. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

38. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

39. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

40. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

41. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

42. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

43. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

44. ADC Conversion Clock Cycles 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea

45. 2007 Summer SeminarImpedance Imaging Research Center, Kyung Hee University, Suwon, South Korea