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Buffer circuit having variable output impedance 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H03K-019/084
출원번호 US-0523165 (1995-09-05)
발명자 / 주소
  • Farhang Ali R. (Beaverton OR) Nogle Scott G. (Austin TX)
출원인 / 주소
  • Motorola, Inc. (Schaumburg IL 02)
인용정보 피인용 횟수 : 80  인용 특허 : 0

초록

An output buffer circuit (20) has an output impedance that is adjustable. An external resistor (32) having a resistance that is a multiple of the desired output impedance is coupled to the output buffer circuit (20). A voltage across the resistor (32) is converted to a digital code using an analog-t

대표청구항

A buffer circuit, comprising: an analog-to-digital converter having an input terminal for receiving a predetermined input voltage, and a plurality of output terminals for providing a digital code corresponding to a voltage level of the predetermined input voltage; and an output driver circuit having

이 특허를 인용한 특허 (80)

  1. Martin, Chris G., Active termination circuit and method for controlling the impedance of external integrated circuit terminals.
  2. Martin, Chris G., Active termination circuit and method for controlling the impedance of external integrated circuit terminals.
  3. Martin,Chris G., Active termination circuit and method for controlling the impedance of external integrated circuit terminals.
  4. Martin,Chris G., Active termination circuit and method for controlling the impedance of external integrated circuit terminals.
  5. Martin,Chris G., Active termination circuit and method for controlling the impedance of external integrated circuit terminals.
  6. Mauthe,Manfred; Icking,Henrik, Adjusting driver stage output impedance.
  7. Jung, Hyun-Key, Apparatus and method for automatic control of current electrodes for electrical resistivity survey.
  8. Jeong, Chun-Seok, Calibration circuit and semiconductor memory device with the same.
  9. Best,Scott C.; Wong,Anthony Koon; Leung,David, Calibration methods and circuits for optimized on-die termination.
  10. Nguyen, Huy M.; Gadde, Vijay; Lau, Benedict, Calibration methods and circuits for optimized on-die termination.
  11. Nguyen, Huy M.; Gadde, Vijay; Lau, Benedict, Calibration methods and circuits to calibrate drive current and termination impedance.
  12. Nguyen, Huy M.; Gadde, Vijay; Lau, Benedict, Calibration methods and circuits to calibrate drive current and termination impedance.
  13. Nguyen, Huy M.; Gadde, Vijay; Lau, Benedict, Calibration methods and circuits to calibrate drive current and termination impedance.
  14. Nguyen, Huy M.; Gadde, Vijay; Lau, Benedict, Calibration methods and circuits to calibrate drive current and termination impedance.
  15. Nguyen, Huy M.; Gadde, Vijay; Lau, Benedict, Calibration methods and circuits to calibrate drive current and termination impedance.
  16. Nguyen, Huy M.; Gadde, Vijay; Lau, Benedict, Calibration methods and circuits to calibrate drive current and termination impedance.
  17. Noda, Shinichi; Ishihara, Hideaki; Suzuki, Akira, Clamp circuit.
  18. Jung, Hae Kang, Data output circuit of semiconductor apparatus.
  19. Male Barry ; Martin William, Digital-to-analog converter employing binary-weighted transistor array.
  20. Nguyen, Huy M.; Gadde, Vijay; Doraiswamy, Sivakumar, Driver calibration methods and circuits.
  21. Nguyen, Huy M.; Gadde, Vijay; Doraiswamy, Sivakumar, Driver calibration methods and circuits.
  22. Nguyen, Huy M.; Gadde, Vijay; Doriaswamy, Sivakumar, Driver calibration methods and circuits.
  23. Nguyen,Huy M.; Gadde,Vijay; Doraiswamy,Sivakumar, Driver calibration methods and circuits.
  24. Pelley, Perry H., Driver with selectable output impedance.
  25. Hsu Pochang ; Nagaraj Ravi, Dual mode input/output interface circuit.
  26. Bhattacharya, Dipankar; Kothandaraman, Makeshwar; Kriz, John C.; Marques, Antonio M.; Morris, Bernard L., Enhanced output impedance compensation.
  27. Goetting F. Erich ; Frake Scott O. ; Kondapalli Venu M. ; Young Steven P., FPGA with a plurality of I/O voltage levels.
  28. Goetting F. Erich ; Frake Scott O. ; Kondapalli Venu M. ; Young Steven P., FPGA with a plurality of I/O voltage levels.
  29. F. Erich Goetting ; Scott O. Frake ; Venu M. Kondapalli ; Steven P. Young, FPGA with a plurality of input reference voltage levels.
  30. Goetting F. Erich ; Frake Scott O. ; Kondapalli Venu M. ; Young Steven P., FPGA with a plurality of input reference voltage levels.
  31. Goetting F. Erich ; Frake Scott O. ; Kondapalli Venu M. ; Young Steven P., FPGA with a plurality of input reference voltage levels grouped into sets.
  32. Edwin S. Law ; Kiran B. Buch ; Glenn A. Baxter ; Raymond C. Pang, Hardwire logic device emulating any of two or more FPGAs.
  33. McClintock, Cameron; Cliff, Richard G.; Wang, Bonnie I., I/O cell configuration for multiple I/O standards.
  34. McClintock,Cameron; Cliff,Richard G.; Wang,Bonnie I., I/O cell configuration for multiple I/O standards.
  35. Oguri,Takashi, Impedance adjustment circuit and integrated circuit device.
  36. Oguri,Takashi, Impedance adjustment circuit, impedance adjustment method, and semiconductor device.
  37. Chung,Hoe ju; Lee,Jae jun; Kim,Kyu hyoung, Impedance adjustment circuits and methods using replicas of variable impedance circuits.
  38. Kuwahara, Shunji; Fujisawa, Hiroki, Impedance control circuit and semiconductor device including the same.
  39. Huang, Ren-Yuan; Hwang, Yi-Ren, Impedance matching circuit.
  40. Om, Hari, Impedance matching circuit.
  41. Suzuki Azuma,JPX ; Hayakawa Shigeyuki,JPX, Impedance matching circuit, high speed semiconductor integrated circuit employing the same and computer system employing the integrated circuit.
  42. Pilling, David J., In-situ monitor of process and device parameters in integrated circuits.
  43. Pilling, David J.; Talledo, Cesar, In-situ monitor of process and device parameters in integrated circuits.
  44. Kim,Hyun Jin; Jang,Seong Jin; Park,Kwang II; Hwang,Sang Joon; Song,Ho Young; Lee,Ho Kyong; Lee,Woo Jin, Input buffer having a stabilized operating point and an associated method.
  45. Goetting F. Erich ; Frake Scott O. ; Kondapalli Venu M., Input/output buffer supporting multiple I/O standards.
  46. M. Jason Welch ; Brian Cardanha, Integrated circuit with multi-function controlled impedance output drivers.
  47. Pelley,Perry H., Integrated circuit with programmable-impedance output buffer and method therefor.
  48. Yang Seung-Kweon,KRX ; Yoon Yong-Jin,KRX, Integrated driver circuits having independently programmable pull-up and pull-down circuits therein which match load impedance.
  49. Park, Chul-woo; Jun, Young-hyun; Choi, Joo-sun; Hwang, Hong-sun, Memory circuits, systems, and modules for performing DRAM refresh operations and methods of operating the same.
  50. Porter John D. ; Weber Larren Gene, Method and apparatus for circuit variable updates.
  51. Blodgett,Greg A.; Morzano,Christopher K., Method and circuit for off chip driver control, and memory device using same.
  52. Blodgett,Greg A.; Morzano,Christopher K., Method and circuit for off chip driver control, and memory device using same.
  53. Thompson William N. ; Porter John D. ; Weber Larren Gene, Method to find a value within a range using weighted subranges.
  54. Thompson, William N.; Porter, John D.; Weber, Larren Gene, Method to find a value within a range using weighted subranges.
  55. Thompson, William N.; Porter, John D.; Weber, Larren Gene, Method to find a value within a range using weighted subranges.
  56. Thompson, William N.; Porter, John D.; Weber, Larren Gene, Method to find a value within a range using weighted subranges.
  57. Thompson, William N.; Porter, John D.; Weber, Larren Gene, Method to find a value within a range using weighted subranges.
  58. William N. Thompson ; John D. Porter ; Larren Gene Weber, Method to find a value within a range using weighted subranges.
  59. William N. Thompson ; John D. Porter ; Larren Gene Weber, Method to find a value within a range using weighted subranges.
  60. William N. Thompson ; John D. Porter ; Larren Gene Weber, Method to find a value within a range using weighted subranges.
  61. Welch M. Jason ; Cardanha Brian, Multi-function controlled impedance output driver.
  62. Matthews, Lloyd P., Output buffer circuit and method of operation.
  63. Maruyama Shigeru,JPX, Output buffer circuit having a variable output impedance.
  64. Allen,Andrew R.; Arnold,Barry J., Output buffer compensation control.
  65. Koo, Yi-do; Yoo, Chang-sik; Jung, Kee-wook; Kim, Won-chan, Output driver having output current compensation and method of compensating output current.
  66. Masleid, Robert Paul, Power efficient multiplexer.
  67. Masleid, Robert Paul, Power efficient multiplexer.
  68. Choi,Myung Han; Lee,Young Dae; Park,Chul Sung, Programmable impedance control circuit in semiconductor device and impedance range shifting method thereof.
  69. Gary Gibbs ; Manoj B. Roge, Programmable transmission line impedance matching circuit.
  70. Dawe, Geoffrey C., Reconfigurable tunable RF power amplifier.
  71. Nobuaki Otsuka JP, Semiconductor device with impedance controllable output buffer.
  72. Janzen,Jeffrey W.; Morzano,Christopher, System and method for mode register control of data bus operating mode and impedance.
  73. Janzen,Jeffrey W.; Morzano,Christopher, System and method for mode register control of data bus operating mode and impedance.
  74. Martinez,Boris N., Systems and methods for adjusting an output driver.
  75. Nguyen,Huy M., Systems and methods for controlling termination resistance values for a plurality of communication channels.
  76. Nguyen,Huy M., Systems and methods for controlling termination resistance values for a plurality of communication channels.
  77. Vullaganti, Kalyana C., Variable impedance sense architecture and method.
  78. Thompson, William N.; Porter, John D.; Weber, Larren Gene, Variable resistance circuit.
  79. Thompson,William N.; Porter,John D.; Weber,Larren Gene, Variable resistance circuit.
  80. Nakamura, Masayuki; Yoko, Hideyuki, ZQ calibration circuit and a semiconductor device including a ZQ calibration circuit.
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