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參數(shù)資料
| 型號： | LM224 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Low Power Quad Operational Amplifiers(低功耗四通道運(yùn)算放大器) |
| 中文描述： | 低功耗四運(yùn)算放大器（低功耗四通道運(yùn)算放大器） |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 204K |
| 代理商： | LM224 |
LM324, LM324A, LM224, LM2902, LM2902V, NCV2902
http://onsemi.com
6
CIRCUIT DESCRIPTION
The LM324 series is made using four internally
compensated, two
stage operational amplifiers. The first
stage of each consists of differential input devices Q20 and
Q18 with input buffer transistors Q21 and Q17 and the
differential to single ended converter Q3 and Q4. The first
stage performs not only the first stage gain function but also
performs the level shifting and transconductance reduction
functions. By reducing the transconductance, a smaller
compensation capacitor (only 5.0 pF) can be employed, thus
saving chip area. The transconductance reduction is
accomplished by splitting the collectors of Q20 and Q18.
Another feature of this input stage is that the input common
mode range can include the negative supply or ground, in
single supply operation, without saturating either the input
devices or the differential to single
ended converter. The
second stage consists of a standard current source load
amplifier stage.
Figure 2. Large Signal Voltage Follower Response
V
CC
= 15 Vdc
R
L
= 2.0 k
T
A
= 25
°
C
5.0 s/DIV
1
Each amplifier is biased from an internal
voltage
regulator which has a low temperature coefficient thus
giving each amplifier good temperature characteristics as
well as excellent power supply rejection.
Single Supply
Split Supplies
V
CC
V
EE
/GND
3.0 V to V
CC(max)
1
2
3
4
V
CC
1
2
3
4
V
EE
1.5 V to V
CC(max)
1.5 V to V
EE(max)
Figure 3.
70
60
50
40
30
20
10
01.0
10
100
10000
LOAD CAPACITANCE (pF)
Phase Margin
Figure 4. Gain and Phase Margin
1000
70
60
50
40
30
20
10
0
G
P
°
)
Gain Margin
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM231 | Precision Voltage-to-Frequency Converters |
| LM231N | Precision Voltage-to-Frequency Converters |
| LM231AN | Precision Voltage-to-Frequency Converters |
| LM231A | Precision Voltage-to-Frequency Converters |
| LM231WM | Precision Voltage-to-Frequency Converters |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2240 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Programmable Timer/Counter |
| LM2240N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Programmable Timer/Counter |
| LM22-475-P3 | 功能描述:基本/快動開關(guān) Foot Switch RoHS:否 制造商:Omron Electronics 觸點形式:SPDT 執(zhí)行器:Lever 電流額定值:5 A 電壓額定值 AC:250 V 電壓額定值 DC:30 V 功率額定值: 工作力:120 g IP 等級:IP 67 NEMA 額定值: 端接類型:Wire 安裝:Panel |
| LM224A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Quadruple operationl amplifiers |
| LM224A_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low power quad operational amplifiers |
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