JPS644104A - Multi-stage amplifier - Google Patents
Multi-stage amplifierInfo
- Publication number
- JPS644104A JPS644104A JP16056987A JP16056987A JPS644104A JP S644104 A JPS644104 A JP S644104A JP 16056987 A JP16056987 A JP 16056987A JP 16056987 A JP16056987 A JP 16056987A JP S644104 A JPS644104 A JP S644104A
- Authority
- JP
- Japan
- Prior art keywords
- stage
- feedback
- fet
- gate width
- mutual conductance
- 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.)
- Granted
Links
Landscapes
- Amplifiers (AREA)
Abstract
PURPOSE:To improve the linearity of an input/output characteristic by making the gate width of succeeding FETs the same as or smaller than the gate width of the 1st stage FET and decreasing the feedback resistor of the 1st stage and the final stage more than that of other stages. CONSTITUTION:In selecting the mutual conductance (gm) and feedback resistors 11, 21, 31 of FETs 7, 8, 9, the mutual conductance gm of the 1st stage FET, that is, the gate width is selected larger than the gate width of the FETs 8, 9. Moreover, the feedback resistor 11 of the 1st stage and the feedback resistor 31 of the final stage are selected smaller than the feedback resistor 21 of the FET 8. Since the feedback resistance of the 1st and 3rd stages is selected smaller than the feedback resistance of the 2nd stage so as to increase the feedback quantity of the 1st and 3rd stage in this way, a prescribed power gain is obtained and the input/output characteristic with a high input level is improved. Moreover, since the mutual conductance gm of the 1st stage FET is selected larger than the mutual conductance gm of the final stage FET, the power consumption when the input level of the 1st stage is low is decreased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62160569A JPH0611091B2 (en) | 1987-06-25 | 1987-06-25 | Multistage amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62160569A JPH0611091B2 (en) | 1987-06-25 | 1987-06-25 | Multistage amplifier |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS644104A true JPS644104A (en) | 1989-01-09 |
JPH0611091B2 JPH0611091B2 (en) | 1994-02-09 |
Family
ID=15717807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62160569A Expired - Lifetime JPH0611091B2 (en) | 1987-06-25 | 1987-06-25 | Multistage amplifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0611091B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06303046A (en) * | 1993-04-14 | 1994-10-28 | Nec Corp | Semiconductor integrated circuit |
JP2002094336A (en) * | 2000-09-13 | 2002-03-29 | Nf Corp | Cascade connected type amplifier |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1811652B1 (en) * | 2006-01-18 | 2019-03-27 | Marvell World Trade Ltd. | Nested transimpedance amplifier |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60140907A (en) * | 1983-12-28 | 1985-07-25 | Matsushita Electric Ind Co Ltd | Semiconductor integrated circuit |
-
1987
- 1987-06-25 JP JP62160569A patent/JPH0611091B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60140907A (en) * | 1983-12-28 | 1985-07-25 | Matsushita Electric Ind Co Ltd | Semiconductor integrated circuit |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06303046A (en) * | 1993-04-14 | 1994-10-28 | Nec Corp | Semiconductor integrated circuit |
JP2002094336A (en) * | 2000-09-13 | 2002-03-29 | Nf Corp | Cascade connected type amplifier |
Also Published As
Publication number | Publication date |
---|---|
JPH0611091B2 (en) | 1994-02-09 |
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