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ADA4891-1_17

更新时间： 2024-11-05 01:19:07
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亚德诺 - ADI /
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24页 704K
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Low Cost CMOS, High Speed, Rail-to-Rail Amplifiers

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ADA4891-1_17 数据手册

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Low Cost CMOS, High Speed,  
Rail-to-Rail Amplifiers  
ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4  
Data Sheet  
FEATURES  
CONNECTION DIAGRAMS  
Qualified for automotive applications  
ADA4891-1  
High speed and fast settling  
−3 dB bandwidth: 220 MHz (G = +1)  
Slew rate: 170 V/μs  
NC  
–IN  
+IN  
1
2
3
4
8
7
6
5
NC  
+V  
S
OUT  
NC  
–V  
S
Settling time to 0.1%: 28 ns  
Video specifications (G = +2, RL = 150 Ω)  
0.1 dB gain flatness: 25 MHz  
NC = NO CONNECT  
Figure 1. 8-Lead SOIC_N (R-8)  
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  
ADA4891-1  
1
2
3
+V  
S
OUT  
–V  
5
4
S
+IN  
–IN  
Figure 2. 5-Lead SOT-23 (RJ-5)  
ADA4891-2  
APPLICATIONS  
OUT1  
–IN1  
1
2
3
4
8
7
6
5
+V  
S
Automotive infotainment systems  
Automotive driver assistance systems  
Imaging  
OUT2  
–IN2  
+IN2  
+IN1  
–V  
S
Consumer video  
NC = NO CONNECT  
Active filters  
Coaxial cable drivers  
Clock buffers  
Figure 3. 8-Lead SOIC_N (R-8) and 8-Lead MSOP (RM-8)  
ADA4891-3  
PD1  
PD2  
PD3  
1
2
3
4
5
6
7
14 OUT2  
13 –IN2  
12 +IN2  
Photodiode preamp  
Contact image sensor and buffers  
GENERAL DESCRIPTION  
+V  
11 –V  
S
S
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.  
+IN1  
–IN1  
10 +IN3  
9
8
–IN3  
OUT1  
OUT3  
Figure 4. 14-Lead SOIC_N (R-14) and 14-Lead TSSOP (RU-14)  
In spite of their low cost, the ADA4891-1/ADA4891-2/ADA4891-3/  
ADA4891-4 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 maximum dynamic range.  
ADA4891-4  
1
2
3
4
5
6
7
14  
13  
OUT4  
–IN4  
OUT1  
–IN1  
12 +IN4  
+IN1  
The ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4 family of  
amplifiers is ideal for imaging applications, 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.  
11  
–V  
S
+V  
S
10  
9
+IN3  
–IN3  
+IN2  
–IN2  
8
OUT3  
OUT2  
Figure 5. 14-Lead SOIC_N (R-14) and 14-Lead TSSOP (RU-14)  
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.  
Rev. F  
Document Feedback  
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 ©2010–2015 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
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