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ADA4077-4

更新时间： 2024-11-05 00:54:55
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亚德诺 - ADI /
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25页 744K
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4 MHz, 7 nV/√Hz, Low Offset and Drift, High Precision Amplifiers

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ADA4077-4 数据手册

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4 MHz, 7 nV/√Hz, Low Offset and  
Drift, High Precision Amplifiers  
Data Sheet  
ADA4077-1/ADA4077-2/ADA4077-4  
FEATURES  
PIN CONNECTION DIAGRAMS  
Offset voltage and offset voltage drift  
B grade: 25 µV and 0.25 µV/°C at VSY  
A grade maximum offset at 25°C and maximum drift from  
−40°C to +125°C  
NC  
–IN  
+IN  
V–  
1
2
3
4
8
7
6
5
NC  
V+  
ADA4077-1  
=
5 V  
OUT  
NC  
TOP VIEW  
(Not to Scale)  
NC = NO CONNECT. NOT INTERNALLY CONNECTED.  
SOIC: 50 µV and 0.55 µV/°C single/dual and 0.75 µV/°C quad  
MSOP: 90 µV and 1.2 µV/°C dual and 120 µV and 1.2 µV/°C  
single  
TSSOP: 120 µV and 1.2 µV/°C quad  
MSL1 rated  
Low input bias current: 1 nA maximum at TA = 25°C  
Low voltage noise density: 6.9 nV/√Hz typical at f = 1000 Hz  
CMRR, PSRR, and AV > 120 dB minimum  
Low supply current: 400 µA per amplifier typical  
Wide gain bandwidth product: 3.9 MHz at 5 V  
Dual-supply operation: 2.5 V to 15 V  
Unity gain stable  
Figure 1. ADA4077-1, 8-Lead SOIC (and 8-Lead MSOP)  
OUT A  
–IN A  
+IN A  
V–  
1
2
3
4
8
7
6
5
V+  
ADA4077-2  
OUT B  
–IN B  
+IN B  
TOP VIEW  
(Not to Scale)  
Figure 2. ADA4077-2, 8-Lead MSOP (and 8-Lead SOIC)  
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
OUT A  
–IN A  
+IN A  
V+  
OUT D  
–IN D  
+IN D  
V–  
ADA4077-4  
TOP VIEW  
(Not to Scale)  
No phase reversal  
+IN B  
–IN B  
OUT B  
+IN C  
–IN C  
OUT C  
APPLICATIONS  
8
Process control front-end amplifiers  
Wireless base station control circuits  
Optical network control circuits  
Instrumentation  
Sensors and controls: thermocouples, RTDs, strain bridges,  
and shunt current measurements  
Precision filters  
Figure 3. ADA4077-4, 14-Lead TSSOP (and 14-Lead SOIC)  
The ADA4077-1 and ADA4077-2 are available in an 8-lead SOIC  
package, including the B grade, and in an 8-lead MSOP (A grade  
only). The ADA4077-4 is offered in a 14-lead TSSOP and a 14-lead  
SOIC package.  
200  
GENERAL DESCRIPTION  
V
SOIC  
= ±5V  
SY  
180  
160  
140  
120  
100  
80  
The single ADA4077-1, dual ADA4077-2, and quad ADA4077-4  
amplifiers feature extremely low offset voltage and drift, and low  
input bias current, noise, and power consumption. Outputs are  
stable with capacitive loads of more than 1000 pF with no  
external compensation.  
Applications for this amplifier include sensor signal conditioning  
(such as thermocouples, RTDs, strain gauges), process control  
front-end amplifiers, and precision diode power measurement  
in optical and wireless transmission systems. The ADA4077-1,  
ADA4077-2, and ADA4077-4 are useful in line powered and  
portable instrumentation, precision filters, and voltage or  
current measurement and level setting.  
60  
40  
20  
0
V
(µV)  
OS  
Unlike amplifiers by some competitors, the ADA4077-1/  
ADA4077-2/ADA4077-4 have an MSL1 rating that is compliant  
with the most stringent of assembly processes, and they are  
specified over the extended industrial temperature range from  
−40°C to +125°C for the most demanding operating environments.  
Figure 4. Offset Voltage Distribution  
Table 1. Evolution of Precision Devices by Generation  
Op Amp First  
Second Third  
Fourth  
Fifth  
Sixth  
Single  
Dual  
Quad  
OP07 OP77 OP177 OP1177 AD8677 ADA4077-1  
OP2177  
OP4177  
ADA4077-2  
ADA4077-4  
Rev. D  
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  
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 ©2012–2016 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
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