JPH0324709U - - Google Patents
Info
- Publication number
- JPH0324709U JPH0324709U JP8484589U JP8484589U JPH0324709U JP H0324709 U JPH0324709 U JP H0324709U JP 8484589 U JP8484589 U JP 8484589U JP 8484589 U JP8484589 U JP 8484589U JP H0324709 U JPH0324709 U JP H0324709U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- low
- wideband
- feedback gain
- drift
- 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
- 239000002131 composite material Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 2
Landscapes
- Amplifiers (AREA)
Description
第１図は本考案に係る複合増幅器の一実施例を
示す構成図、第２図は周波数特性を示す図、第３
図は従来の複合増幅器の一例を示す構成図、第４
図は第３図に示す従来例の周波数特性を示す図で
ある。
Ｕ１……低ドリフト増幅器、Ｕ２……広帯域増
幅器、ＲＡ，ＲＢ，Ｒ１，Ｒ２……抵抗、ＣＡ，
ＣＢ……コンデンサ、１０……ＣＲ直列回路、Ｃ
Ｃ……コンデンサ、Ｒｃ……抵抗。
Fig. 1 is a configuration diagram showing an embodiment of the composite amplifier according to the present invention, Fig. 2 is a diagram showing frequency characteristics, and Fig. 3 is a diagram showing the frequency characteristics.
The figure is a configuration diagram showing an example of a conventional composite amplifier.
This figure is a diagram showing the frequency characteristics of the conventional example shown in FIG. 3. U1...low drift amplifier, U2...wideband amplifier, RA, RB, R1 , R2 ...resistance, CA,
CB...Capacitor, 10...CR series circuit, C
C...Capacitor, Rc...Resistor.
Claims (1)
を組み合わせると共に、入出力端子間にフイード
バツクゲインを決定する２つの抵抗を直列し接続
してなる抵抗直列回路を挿入し、低ドリフト広帯
域を実現する複合増幅器において、 フイードバツクゲインを決定する帰還系の入力
側抵抗にＣＲ直列回路を付加し、後段の広帯域増
幅器のオープンループゲイン不足による高域での
フイードバツクゲインの低下を補正し、フラツト
な周波数特性を得るようにしたことを特徴とする
複合増幅器。[Claims for Utility Model Registration] Combining a low-speed response, low-drift amplifier and a wideband amplifier, and inserting a resistor series circuit consisting of two resistors connected in series between the input and output terminals to determine the feedback gain. In a composite amplifier that achieves a low-drift wideband, a CR series circuit is added to the input resistor of the feedback system that determines the feedback gain, and the feedback gain in the high frequency range is reduced due to the lack of open loop gain in the subsequent wideband amplifier. A composite amplifier characterized in that it corrects the decrease in frequency and obtains flat frequency characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8484589U JPH0324709U (en) | 1989-07-19 | 1989-07-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8484589U JPH0324709U (en) | 1989-07-19 | 1989-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0324709U true JPH0324709U (en) | 1991-03-14 |
Family
ID=31633597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8484589U Pending JPH0324709U (en) | 1989-07-19 | 1989-07-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0324709U (en) |
-
1989
- 1989-07-19 JP JP8484589U patent/JPH0324709U/ja active Pending
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