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ADA4891-1AR-EBZ

更新时间： 2024-11-04 06:36:15
品牌 Logo 应用领域
亚德诺 - ADI 放大器
页数 文件大小 规格书
24页 655K
描述
Low Cost CMOS, High Speed, Rail-to-Rail Amplifiers

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ADA4891-1AR-EBZ 数据手册

 浏览型号ADA4891-1AR-EBZ的Datasheet PDF文件第2页浏览型号ADA4891-1AR-EBZ的Datasheet PDF文件第3页浏览型号ADA4891-1AR-EBZ的Datasheet PDF文件第4页浏览型号ADA4891-1AR-EBZ的Datasheet PDF文件第5页浏览型号ADA4891-1AR-EBZ的Datasheet PDF文件第6页浏览型号ADA4891-1AR-EBZ的Datasheet PDF文件第7页 
Low Cost CMOS, High Speed,  
Rail-to-Rail Amplifiers  
ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4  
FEATURES  
CONNECTION DIAGRAMS  
ADA4891-1  
High speed and fast settling  
NC  
–IN  
+IN  
1
2
3
4
8
7
6
5
NC  
+V  
−3 dB bandwidth: 220 MHz (G = +1)  
Slew rate: 170 V/μs  
Settling time to 0.1%: 28 ns  
S
OUT  
NC  
–V  
S
Video specifications (G = +2, RL = 150 Ω)  
0.1 dB gain flatness: 25 MHz  
Differential gain error: 0.05%  
Differential phase error: 0.25°  
Single-supply operation  
Wide supply range: 2.7 V to 5.5 V  
Output swings to within 50 mV of supply rails  
Low distortion: 79 dBc SFDR at 1 MHz  
Linear output current: 125 mA at −40 dBc  
Low power: 4.4 mA per amplifier  
NC = NO CONNECT  
Figure 1. 8-Lead SOIC_N (R-8)  
ADA4891-1  
1
2
3
+V  
S
OUT  
–V  
5
4
S
+IN  
–IN  
Figure 2. 5-Lead SOT-23 (RJ-5)  
APPLICATIONS  
ADA4891-2  
Imaging  
Consumer video  
Active filters  
Coaxial cable drivers  
Clock buffers  
OUT1  
–IN1  
1
2
3
4
8
7
6
5
+V  
S
OUT2  
–IN2  
+IN2  
+IN1  
–V  
S
NC = NO CONNECT  
Photodiode preamp  
Contact image sensor and buffers  
Figure 3. 8-Lead SOIC_N (R-8) and 8-Lead MSOP (RM-8)  
ADA4891-3  
GENERAL DESCRIPTION  
PD1  
PD2  
PD3  
1
2
3
4
5
6
7
14 OUT2  
13 –IN2  
12 +IN2  
The ADA4891-1 (single), ADA4891-2 (dual), ADA4891-3 (triple),  
and ADA4891-4 (quad) are CMOS, high speed amplifiers that  
offer high performance at a low cost. The amplifiers feature true  
single-supply capability, with an input voltage range that extends  
300 mV below the negative rail.  
+V  
11 –V  
S
S
+IN1  
–IN1  
10 +IN3  
9
8
–IN3  
In spite of their low cost, the ADA4891 family provides high  
performance and versatility. The rail-to-rail output stage enables  
the output to swing to within 50 mV of each rail, enabling maxi-  
mum dynamic range.  
OUT1  
OUT3  
Figure 4. 14-Lead SOIC_N (R-14) and 14-Lead TSSOP (RU-14)  
ADA4891-4  
The ADA4891 family of amplifiers is ideal for imaging applica-  
tions, such as consumer video, CCD buffers, and contact image  
sensor and buffers. Low distortion and fast settling time also  
make them ideal for active filter applications.  
1
2
3
4
5
6
7
14  
13  
OUT4  
–IN4  
OUT1  
–IN1  
12 +IN4  
+IN1  
11  
–V  
S
+V  
S
10  
9
+IN3  
–IN3  
The ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4 are avail-  
able in a wide variety of packages. The ADA4891-1 is available  
in 8-lead SOIC and 5-lead SOT-23 packages. The ADA4891-2  
is available in 8-lead SOIC and 8-lead MSOP packages. The  
ADA4891-3 and ADA4891-4 are available in 14-lead SOIC and  
14-lead TSSOP packages. The amplifiers are specified to operate  
over the extended temperature range of −40°C to +125°C.  
+IN2  
–IN2  
8
OUT3  
OUT2  
Figure 5. 14-Lead SOIC_N (R-14) and 14-Lead TSSOP (RU-14)  
Rev. B  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rights of third parties that may result from its use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2010 Analog Devices, Inc. All rights reserved.  
 
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