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AD8665_15

更新时间： 2024-11-21 01:11:19
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亚德诺 - ADI /
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16页 621K
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16 V, 4 MHz RR0 Amplifiers

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AD8665_15 数据手册

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16 V, 4 MHz RR0 Amplifiers  
AD8665/AD8666/AD8668  
FEATURES  
PIN CONFIGURATIONS  
Offset voltage: 2.5 mV max  
1
2
5
OUT  
V–  
V+  
Low input bias current: 1 pA max  
Single-supply operation: 5 V to 16 V  
Dual-supply operation: 2.5 V to 8 V  
Low noise: 8 nV/√Hz @ 10 kHz  
Wide bandwidth: 4 MHz  
AD8665  
TOP VIEW  
(Not to Scale)  
3
4
–IN  
+IN  
Figure 1. AD8665, 5-Lead SOT-23 (RJ-5)  
Rail-to-rail output  
Unity-gain stable  
Lead-free packaging  
AD8666/AD8668 qualified for automotive applications  
NC  
–IN  
1
2
3
4
8
7
6
5
NC  
AD8665  
VCC  
OUT  
NC  
+IN  
TOP VIEW  
(Not to Scale)  
VEE  
APPLICATIONS  
NC = NO CONNECT  
Figure 2. AD8665, 8-Lead SOIC_N (R-8)  
Sensor amplification  
Reference buffers  
Medical equipment  
Physiological measurements  
Signal filters and conditioning  
Consumer audio  
OUT A  
–IN A  
+IN A  
V–  
1
2
3
4
8
7
6
5
V+  
AD8666  
OUT B  
–IN B  
+IN B  
TOP VIEW  
(Not to Scale)  
Figure 3. AD8666, 8-Lead SOIC_N (R-8)  
Photodiode amplification  
ADC driver  
Level shifting circuits  
1
2
3
4
8
7
6
5
OUT A  
–IN A  
+IN A  
V–  
V+  
OUT B  
–IN B  
+IN B  
AD8666  
TOP VIEW  
(Not to Scale)  
GENERAL DESCRIPTION  
The AD866x family is single supply, rail-to-rail output  
amplifiers with low noise performance featuring an extended  
operating range with supply voltages up to 16 V. They also  
feature low input bias currents, wide signal bandwidth, and low  
input voltage and current noise. For lower offset voltage, choose  
the AD8661/AD8662/AD8664 family.  
Figure 4. AD8666, 8-Lead MSOP (RM-8)  
1
OUT A  
IN A  
14  
13  
12  
11  
10  
9
OUT D  
–IN D  
+IN D  
V–  
2
3
4
5
6
7
+IN A  
V+  
AD8668  
TOP VIEW  
(Not to Scale)  
The combination of low offsets, very low input bias currents,  
and wide supply range make these amplifiers useful in a wide  
variety of cost sensitive applications normally associated with  
much higher priced JFET amplifiers. Systems using high  
impedance sensors, such as photo diodes, benefit from the  
combination of low input bias current, low noise, and low offset  
and bandwidth. The wide operating voltage range matches high  
performance ADCs and DACs. Audio applications and medical  
monitoring equipment can take advantage of the high input  
impedance, low voltage and current noise, wide bandwidth, and  
the lack of popcorn noise found in many other low input bias  
current amplifiers.  
+IN B  
–IN B  
OUT B  
+IN C  
–IN C  
OUT C  
8
Figure 5. AD8668, 14-Lead TSSOP (RU-14)  
1
2
3
4
5
14  
13  
12  
11  
10  
9
OUT A  
–IN A  
+IN A  
V+  
OUT D  
–IN D  
+IN D  
V–  
AD8668  
TOP VIEW  
(Not to Scale)  
+IN B  
–IN B  
OUT B  
+IN C  
–IN C  
OUT C  
6
7
8
The AD866x family is specified over the extended industrial  
temperature range (−40°C to +125°C). See the Ordering Guide  
for automotive models.  
Figure 6. AD8668, 14-Lead SOIC_N (R-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  
rightsof third parties that may result fromits 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 andregisteredtrademarks 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  
www.analog.com  
Fax: 781.461.3113 ©2006–2011 Analog Devices, Inc. All rights reserved.  
 
 
 
 
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