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AD8671_15

更新时间： 2024-02-03 11:16:58
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亚德诺 - ADI /
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Precision, Very Low Noise, Low Input

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AD8671_15 数据手册

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Precision, Very Low Noise, Low Input  
Bias Current Operational Amplifiers  
AD8671/AD8672/AD8674  
Data Sheet  
FEATURES  
PIN CONFIGURATIONS  
Very low noise: 2.8 nV/√Hz, 77 nV p-p  
Wide bandwidth: 10 MHz  
NC  
–IN  
+IN  
V–  
1
2
3
4
8
7
6
5
NC  
V+  
AD8671  
TOP VIEW  
Low input bias current: 12 nA max  
Low offset voltage: 75 μV max  
High open-loop gain: 120 dB min  
Low supply current: 3 mA typ per amplifier  
Dual-supply operation: 5 V to 15 V  
Unity-gain stable  
OUT  
NC  
(Not to Scale)  
NC = NO CONNECT  
Figure 1. 8-Lead SOIC_N (R-8) and 8-Lead MSOP (RM-8)  
No phase reversal  
OUT A  
–IN A  
+IN A  
V–  
1
2
3
4
8
7
6
5
V+  
AD8672  
OUT B  
–IN B  
+IN B  
TOP VIEW  
APPLICATIONS  
PLL filters  
(Not to Scale)  
Filters for GPS  
Figure 2. 8-Lead SOIC-N (R-8) and 8-Lead MSOP (RM-8)  
Instrumentation  
Sensors and controls  
Professional quality audio  
OUT A  
–IN A  
+IN A  
V+  
1
2
3
4
5
6
7
14 OUT D  
13 –IN D  
12 +IN D  
11 V–  
AD8674  
GENERAL DESCRIPTION  
TOP VIEW  
(Not to Scale)  
+IN B  
–IN B  
OUT B  
10 +IN C  
The AD8671/AD8672/AD8674 are very high precision amplifiers  
featuring very low noise, very low offset voltage and drift, low  
input bias current, 10 MHz bandwidth, and low power  
9
8
–IN C  
OUT C  
consumption. Outputs are stable with capacitive loads of over  
Figure 3. 14-Lead SOIC_N (R-14) and 14-Lead TSSOP (RU-14)  
1000 pF. Supply current is less than 3 mA per amplifier at 30 V.  
The AD8671/AD8672/AD8674’s combination of ultralow noise,  
high precision, speed, and stability is unmatched. The MSOP  
version of the AD8671/AD8672 requires only half the board  
space of comparable amplifiers.  
The AD8671, AD8672, and AD8674 are members of a growing  
series of low noise op amps offered by Analog Devices, Inc.  
Table 1. Voltage Noise  
Package 0.9 nV 1.1 nV  
Applications for these amplifiers include high quality PLL  
filters, precision filters, medical and analytical instrumentation,  
precision power supply controls, ATE, data acquisition, and  
precision controls as well as professional quality audio.  
1.8 nV  
2.8 nV  
3.8 nV  
Single  
Dual  
AD797 AD8597 ADA4004-1  
AD8599 ADA4004-2  
ADA4004-4  
AD8675 AD8671  
AD8676 AD8672  
AD8674  
Quad  
The AD8671/AD8672 are specified over the extended industrial  
temperature range (−40°C to +125°C), and the AD8674 is specified  
over the industrial temperature range (−40°C to +85°C).  
The AD8671/AD8672 are available in the 8-lead SOIC and  
8-lead MSOP packages. The AD8674 is available in 14-lead  
SOIC and 14-lead TSSOP packages.  
Surface-mount devices in MSOP packages are available in tape  
and reel only.  
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 ofthird parties that may result fromits use. Specifications subject to change without notice. No  
licenseis granted byimplication 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 ©2004–2013 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
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