JPS645108A - High speed-high accuracy buffer amplifier - Google Patents
High speed-high accuracy buffer amplifierInfo
- Publication number
- JPS645108A JPS645108A JP16045287A JP16045287A JPS645108A JP S645108 A JPS645108 A JP S645108A JP 16045287 A JP16045287 A JP 16045287A JP 16045287 A JP16045287 A JP 16045287A JP S645108 A JPS645108 A JP S645108A
- Authority
- JP
- Japan
- Prior art keywords
- current
- active element
- high speed
- buffer amplifier
- constant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Amplifiers (AREA)
Abstract
PURPOSE:To obtain a high speed high accuracy buffer amplifier provided with wide band and low distortion factor in common by keeping an active element forming an emitter follower or a source follower so that the current is nearly made constant independently of the excitation of a signal. CONSTITUTION:A current iL flowing to a load 5 is changed by changing a current icomp of a constant current active element 6 without changing the current of an amplification active element 2 largely. Thus, the mutual conductance gm of the active element 2 is not largely changed and the amplification factor is kept nearly a constant value, then the output impedance Z0 viewed from the load is kept constant, the distortion factor is improved and the accuracy is improved. Since the frequency at which the distortion factor starts being deteriorated is the frequency equal to that of a conventional emitter follower and the practical band is sufficiently wide, the high speed response is attained. Then the high speed and high accuracy buffer amplifier is obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16045287A JPS645108A (en) | 1987-06-26 | 1987-06-26 | High speed-high accuracy buffer amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16045287A JPS645108A (en) | 1987-06-26 | 1987-06-26 | High speed-high accuracy buffer amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS645108A true JPS645108A (en) | 1989-01-10 |
Family
ID=15715241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16045287A Pending JPS645108A (en) | 1987-06-26 | 1987-06-26 | High speed-high accuracy buffer amplifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS645108A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015076679A (en) * | 2013-10-07 | 2015-04-20 | 旭化成エレクトロニクス株式会社 | Source follower circuit |
-
1987
- 1987-06-26 JP JP16045287A patent/JPS645108A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015076679A (en) * | 2013-10-07 | 2015-04-20 | 旭化成エレクトロニクス株式会社 | Source follower circuit |
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