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AN-414 PDF预览

AN-414

更新时间: 2024-11-14 12:54:07
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亚德诺 - ADI 放大器
页数 文件大小 规格书
17页 602K
描述
Quad 150 MHz Rail-to-Rail Amplifier

AN-414 数据手册

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Quad 150 MHz  
Rail-to-Rail Amplifier  
a
AD8044  
CONNECTION DIAGRAM  
FEATURES  
14-Lead Plastic DIP and SOIC  
Single AD8041 and Dual AD8042 Also Available  
Fully Specified at +3 V, +5 V, and ؎5 V Supplies  
Output Swings to Within 25 mV of Either Rail  
Input Voltage Range Extends 200 mV Below Ground  
No Phase Reversal with Inputs 1 V Beyond Supplies  
Low Power of 2.75 mA/Amplifier  
High Speed and Fast Settling on +5 V  
150 MHz –3 dB Bandwidth (G = +1)  
170 V/s Slew Rate  
OUT A  
–IN A  
+IN A  
V+  
1
2
3
4
5
6
7
14 OUT D  
13 –IN D  
+IN D  
12  
V–  
11  
10  
9
AD8044  
+IN C  
–IN C  
OUT C  
+IN B  
–IN B  
OUT B  
8
40 ns Settling Time to 0.1%  
TOP VIEW  
Good Video Specifications (RL = 150 , G = +2)  
Gain Flatness of 0.1 dB to 12 MHz  
0.06% Differential Gain Error  
0.15؇ Differential Phase Error  
Low Distortion  
–68 dBc Total Harmonic @ 5 MHz  
Outstanding Load Drive Capability  
Drives 30 mA 0.5 V from Supply Rails  
The output voltage swing extends to within 25 mV of each rail,  
providing the maximum output dynamic range. Additionally, it  
features gain flatness of 0.1 dB to 12 MHz, while offering differ-  
ential gain and phase error of 0.04% and 0.22on a single +5 V  
supply. This makes the AD8044 useful for video electronics,  
such as cameras, video switchers, or any high speed portable  
equipment. The AD8044’s low distortion and fast settling make  
it ideal for active filter applications.  
APPLICATIONS  
Active Filters  
Video Switchers  
Distribution Amplifiers  
A/D Driver  
Professional Cameras  
CCD Imaging Systems  
Ultrasound Equipment (Multichannel)  
The AD8044 offers low power supply current of 13.1 mA max  
and can run on a single +3.3 V power supply. These features are  
ideally suited for portable and battery-powered applications  
where size and power are critical.  
The wide bandwidth of 150 MHz, along with 170 V/ms of slew  
rate on a single +5 V supply, make the AD8044 useful in many  
general-purpose, high speed applications where dual power  
supplies of up to ±6 V and single supplies from +3 V to +12 V  
are needed. The AD8044 is available in 14-lead PDIP and  
SOIC.  
PRODUCT DESCRIPTION  
The AD8044 is a quad, low power, voltage feedback, high  
speed amplifier designed to operate on +3 V, +5 V, or ±5 V  
supplies. It has true single-supply capability with an input volt-  
age range extending 200 mV below the negative rail and within  
1 V of the positive rail.  
18  
V
= +5V  
S
15  
12  
9
G = +1  
V
= +5V  
S
6
5V  
3
0
2.5V  
–3  
–6  
–9  
0V  
1V  
2s  
–12  
100k  
1M  
10M  
100M  
FREQUENCY (Hz)  
Figure 1. Output Swing: Gain = –1, RL = 2 kW  
REV. B  
Figure 2. Frequency Response: Gain = +1, VS = +5 V  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. No license is granted by implication or otherwise  
under any patent or patent rights of Analog Devices. Trademarks and  
registered trademarks are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© 2004 Analog Devices, Inc. All rights reserved.  

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