- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄385528 > MAX4120 (Maxim Integrated Products, Inc.) Quad, 400MHz, Low-Power, Current Feedback Amplifiers(四路,270MHz,低功率,電流反饋運(yùn)放) PDF資料下載
參數(shù)資料
| 型號(hào)： | MAX4120 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Quad, 400MHz, Low-Power, Current Feedback Amplifiers(四路,270MHz,低功率,電流反饋運(yùn)放) |
| 中文描述： | 單/雙/四路、400MHz、低功耗、電流反饋放大器 |
| 文件頁(yè)數(shù)： | 9/12頁(yè) |
| 文件大小： | 181K |
| 代理商： | MAX4120 |
______________________________________________________________Pin Desc ription
PIN
MAX4117/MAX4118
—
N.C.
1, 5, 8
_______________Detailed Desc ription
The MAX4112/MAX4117 are optimized for closed-loop
gains (A
VCL
) of 2V/V or greater, while the MAX4113/
MAX4118 are optimized for closed-loop gains of 8V/V
or greater. These low-power, high-speed, current-mode
feedback amplifiers operate from ±5V supplies. They
are designed to drive video loads with excellent distor-
tion characteristics. The MAX4112/MAX4117’s differen-
tial gain and phase are 0.02% and 0.03°, respectively;
the MAX4113/MAX4118 exhibit gain/phase error speci-
fications of 0.02% and 0.04°, respectively. These char-
acteristics, plus a wide 0.1dB bandwidth, make the
MAX4112/MAX4113/MAX4117/MAX4118 ideal for use
in broadcast and graphics video systems. The combi-
nation of ultra-high speed and low power makes these
parts ideal for use in general-purpose, high-speed
applications, such as medical imaging, industrial instru-
mentation, and communications systems.
__________Applic ations Information
T heory of Operation
Since these devices are current-feedback amplifiers,
their open-loop transfer function is expressed as a
transimpedance,
V
OUT
/
I
IN
, or Z
OL
. The frequency
behavior of the open-loop transimpedance is similar to
the open-loop gain of a voltage-mode feedback
amplifier. That is, it has a large DC value and decreas-
es at approximately 6dB/octave.
Analyzing the follower with gain, as shown in Figure 1,
yields the following transfer function:
where G = A
VCL
= 1 + R
F
/ R
G
, and R
IN
= 1 /g
M
30
.
At low gains, G x R
IN
<< R
F
. Therefore, the closed-loop
bandwidth is essentially independent of closed-loop
gain. Similarly Z
OL
>> R
F
at low frequencies, so that:
Layout and Power-S upply Bypassing
MAX4112/MAX4113/MAX4117/MAX4118 have an RF
bandwidth and consequently require careful board lay-
out, including the possible use of constant-impedance
Microstrip or Stripline techniques.
To realize the full AC performance of these high-speed
amplifiers, pay careful attention to power-supply
V
V
OUT
IN
1
/
=
=
+
G
R
R
F
G
V
V
OUT
IN
+
=
+
( )
( )
G x
Z
Z
G x R
R
OL S
OL S
IN
F
M
S ingle/Dual, 500MHz, Low-Power,
Current-Mode Feedbac k Amplifiers
_______________________________________________________________________________________
9
Noninverting Input
Amplifier A Noninverting Input
Negative Power Supply. Connect to -5V.
Amplifier B Noninverting Input
IN+
INA+
V
EE
INB+
3
—
4
—
Amplifier A Inverting Input
INA-
—
Inverting Input
IN-
2
Amplifier A Output
OUTA
—
FUNCTION
NAME
MAX4112/MAX4113
V
IN
R
G
R
IN
Z
OL
R
F
+1
+1
V
OUT
MAX4112
Figure 1. Current Feedback Amplifier
—
3
4
2
—
1
No Connection. Not internally connected.
7
8
6
—
5
Amplifier B Output
Positive Power Supply. Connect to +5V.
OUTB
V
CC
—
7
Amplifier B Inverting Input
INB-
—
Amplifier Output
OUT
6
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX4121CSA | 330MHz Buffered Video Switches/ Crosspoint Building Blocks |
| MAX4221 | 330MHz Buffered Video Switches/ Crosspoint Building Blocks |
| MAX4221CSE | 330MHz Buffered Video Switches/ Crosspoint Building Blocks |
| MAX4111 | 330MHz Buffered Video Switches/ Crosspoint Building Blocks |
| MAX4111CSA | 330MHz Buffered Video Switches/ Crosspoint Building Blocks |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4120EEE | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Single/Dual/Quad, 400MHz, Low-Power, Current Feedback Amplifiers |
| MAX4120ESD | 功能描述:高速運(yùn)算放大器 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 |
| MAX4120ESD+ | 功能描述:高速運(yùn)算放大器 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 |
| MAX4120ESD+T | 功能描述:高速運(yùn)算放大器 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 |
| MAX4120ESD-T | 功能描述:高速運(yùn)算放大器 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 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。