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參數(shù)資料
| 型號： | MAX4212 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Miniature, 300MHz, Single-Supply, Rail-to-Rail Op Amps with Enable |
| 中文描述： | 微型、300MHz、單電源、 滿擺幅運算放大器，帶有使能端 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 288K |
| 代理商： | MAX4212 |
M
_______________Detailed Desc ription
The MAX4212/MAX4213/MAX4216/MAX4218/MAX4220
are single-supply, rail-to-rail, voltage-feedback ampli-
fiers that employ current-feedback techniques to
achieve 600V/μs slew rates and 300MHz bandwidths.
Excellent harmonic distortion and differential gain/
phase performance make these amplifiers an ideal
choice for a wide variety of video and RF signal-
processing applications.
The output voltage swing comes to within 50mV of each
supply rail. Local feedback around the output stage
assures low open-loop output impedance to reduce
gain sensitivity to load variations. This feedback also
produces demand-driven current bias to the output
transistors for ±100mA drive capability, while constrain-
ing total supply current to less than 7mA. The input
stage permits common-mode voltages beyond the nega-
tive supply and to within 2.25V of the positive supply rail.
__________Applic ations Information
Choosing Resistor V alues
Unity-Gain Configuration
The MAX4212/MAX4213/MAX4216/MAX4218/MAX4220
are internally compensated for unity gain. When config-
ured for unity gain, the devices require a 24
resistor
(R
F
) in series with the feedback path. This resistor
improves AC response by reducing the Q of the parallel
LC circuit formed by the parasitic feedback capaci-
tance and inductance.
Inverting and Noninverting Configurations
Select the gain-setting feedback (R
F
) and input (R
G
)
resistor values to fit your application. Large resistor val-
ues increase voltage noise and interact with the amplifi-
er’s input and PC board capacitance. This can
generate undesirable poles and zeros and decrease
bandwidth or cause oscillations. For example, a nonin-
verting gain-of-two configuration (R
F
= R
G
) using 1k
resistors, combined with 1pF of amplifier input capaci-
tance and 1pF of PC board capacitance, causes a pole
at 159MHz. Since this pole is within the amplifier band-
width, it jeopardizes stability. Reducing the 1k
resis-
tors to 100
extends the pole frequency to 1.59GHz,
but could limit output swing by adding 200
in parallel
with the amplifier’s load resistor. Table 1 shows sug-
gested feedback, gain resistors, and bandwidth for
several gain values in the configurations shown in
Figures 1a and 1b.
Layout and Power-S upply Bypassing
These amplifiers operate from a single +3.3V to +11V
power supply or from dual supplies to ±5.5V. For single-
supply operation, bypass V
CC
to ground with a 0.1μF
capacitor as close to the pin as possible. If operating with
dual supplies, bypass each supply with a 0.1μF capacitor.
Miniature, 300MHz, S ingle-S upply,
Rail-to-Rail Op Amps with Enable
10
______________________________________________________________________________________
IN
R
G
V
OUT
= [1+ (R
F
/ R
G
)] V
IN
R
F
R
TO
R
TIN
R
O
V
OUT
IN
R
G
V
OUT
= -(R
F
/ R
G
) V
IN
R
F
R
TO
R
S
R
TIN
R
O
V
OUT
Figure 1a. Noninverting Gain Configuration
Figure 1b. Inverting Gain Configuration
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX4220ESD | Miniature, 300MHz, Single-Supply, Rail-to-Rail Op Amps with Enable |
| MAX4212EUK | Miniature, 300MHz, Single-Supply, Rail-to-Rail Op Amps with Enable |
| MAX4213ESA | Miniature, 300MHz, Single-Supply, Rail-to-Rail Op Amps with Enable |
| MAX4216ESA | Miniature, 300MHz, Single-Supply, Rail-to-Rail Op Amps with Enable |
| MAX4220EEE | Miniature, 300MHz, Single-Supply, Rail-to-Rail Op Amps with Enable |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4212EUK | 制造商:Maxim Integrated Products 功能描述:5 PIN COUNT SOT PACKAGE TYPE - Rail/Tube 制造商:Maxim Integrated Products 功能描述:IC OP AMP 300MHZ RRO/P SMD 4212 |
| MAX4212EUK+ | 制造商:Maxim Integrated Products 功能描述:OP AMP SGL VOLT FDBK R-R O/P 5.5V/11V 5PIN SOT-23 - Rail/Tube 制造商:Maxim Integrated Products 功能描述:RAIL-TO-RAIL OP AMPS WITH ENABLE |
| MAX4212EUK+T | 功能描述:高速運算放大器 Miniature 300MHz Single-Supply R-R RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| MAX4212EUK+T | 制造商:Maxim Integrated Products 功能描述:IC OP-AMP ((NW)) |
| MAX4212EUK+T | 制造商:Maxim Integrated Products 功能描述:OP AMP 300MHZ RRO/P SMD 4212 |
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