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參數(shù)資料
| 型號： | MAX4024 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Triple and Quad.2:1 Video Multiplexer-Amplifiers with Fixed and Settable Gain |
| 中文描述： | 三路和四路、2:1視頻多路復用器-放大器，帶有固定和可設置增益 |
| 文件頁數(shù)： | 12/20頁 |
| 文件大?。?/td> | 413K |
| 代理商： | MAX4024 |
M
Micropower, SOT23, Rail-to-Rail,
Fixed-Gain, GainAmp/Open-Loop Op Amps
12
______________________________________________________________________________________
GainAmp Signal Coupling
and Configurations
Common op amp configurations include both noninvert-
ing and inverting amplifiers. Figures 3–6 show various
single- and dual-supply circuit configurations. In single-
supply systems, use a resistor-divider to bias the nonin-
verting input. A lowpass filter capacitor from the op amp
input to ground (Figure 5) prevents high-frequency
power-supply noise from coupling into the op amp input.
Dual-supply systems can have ground-referenced sig-
nals DC-coupled into the inverting or noninverting inputs.
Supply Bypassing and Board Layout
All devices in this GainAmp family operate from a +2.5V
to +5.5V single supply or from ±1.25V to ±2.75V dual
supplies. For single-supply operation, bypass the power
supply with a 0.1μF capacitor to ground. For dual sup-
plies, bypass each supply to ground. Bypass with
capacitors as close to the device as possible to mini-
mize lead inductance and noise. A printed circuit board
with a low-inductance ground plane is recommended.
Capacitive-Load Stability
Driving large capacitive loads can cause instability in
most low-power, rail-to-rail output amplifiers. The fixed-
gain amplifiers of this GainAmp family are stable with
capacitive loads up to 100pF. Stability with higher
capacitive loads can be improved by adding an isola-
tion resistor in series with the op amp output, as shown
in Figure 7. This resistor improves the circuit’s phase
margin by isolating the load capacitor from the amplifi-
er’s output. In Figure 8, a 220pF capacitor is driven with
a 100
isolation resistor exhibiting some overshoot but
no oscillation. Figures 9 and 10 show the typical small-
signal pulse responses of GainAmp fixed-gain ampli-
fiers with 47pF and 100pF capacitive loads and no
isolation resistor
MAX4074
V
CC
V
CC
R
G
R
F
V
IN
OUT
= -R
F
(V
IN
)
V
G
Figure 3. Single-Supply, DC-Coupled Inverting Amplifier with
Negative Input Voltage
MAX4074
V
EE
V
CC
R
G
R
F
V
IN
OUT
= - V
IN
(
R
F
)
V
G
Figure 4. Dual-Supply, DC-Coupled Inverting Amplifier
MAX4074
V
CC
V
CC
R
G
R
F
V
IN
0.1
μ
F
OUT
= V
CC
- V
IN
(
R
F
)
V
G
Figure 5. Single-Supply, AC-Coupled Inverting Amplifier
MAX4074
V
EE
V
CC
R
G
R
F
V
IN
OUT
= V
IN
(
1+ R
F
)
V
G
Figure 6. Dual-Supply, DC-Coupled Noninverting Amplifier
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| MAX40-24.0C | 制造商:MDE 制造商全稱:MDE Semiconductor, Inc. 功能描述:HIGH CURRENT TRANSIENT VOLTAGE SUPPRESSOR (TVS) DIODE |
| MAX40-24.0CA | 制造商:MDE 制造商全稱:MDE Semiconductor, Inc. 功能描述:HIGH CURRENT TRANSIENT VOLTAGE SUPPRESSOR (TVS) DIODE |
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| MAX4024ESD | 功能描述:視頻放大器 RoHS:否 制造商:ON Semiconductor 通道數(shù)量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel |
| MAX4024ESD+ | 功能描述:視頻放大器 Triple & Quad 2:1 Video MUX-Amplifier RoHS:否 制造商:ON Semiconductor 通道數(shù)量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel |
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