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ADA4077-2

更新时间： 2024-11-04 12:23:55
品牌 Logo 应用领域
亚德诺 - ADI 放大器
页数 文件大小 规格书
20页 503K
描述
The ADA4077-2 is a dual amplifier featuring extremely low offset voltage and drift and low input bias current, noise, and power consumption.

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4 MHz, 7 nV/√Hz, Low Offset and  
Drift, High Precision Amplifier  
Data Sheet  
ADA4077-2  
FEATURES  
PIN CONNECTION DIAGRAMS  
Low offset voltage (maximum specifications)  
B-Grade: 25 µV (SOIC)  
A-Grade: 50 µV (SOIC), 90 µV (MSOP)  
Very low offset voltage drift  
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)  
B-Grade: 0.25 µV/°C (SOIC)  
Figure 1. ADA4077-2 Pin Configuration, 8-Lead MSOP  
A-Grade: 0.55 µV/°C (SOIC) and 1.2 µV/°C (MSOP), specified  
over −40°C to +125°C, MSL1 rated  
Low input bias current: 1.0 nA maximum  
Low noise: 7 nV/√Hz typical  
CMRR, PSRR, and AVO > 120 dB minimum  
Low supply current: 400 µA per amplifier typical  
Wide bandwidth: 4.0 MHz  
8
7
6
5
V+  
OUT A  
–IN A  
+IN A  
V–  
1
2
3
4
ADA4077-2  
OUT B  
–IN B  
+IN B  
TOP VIEW  
(Not to Scale)  
Figure 2. ADA4077-2 Pin Configuration, 8-Lead SOIC_N  
Dual-supply operation: 5 V to 15 V  
Unity-gain stable  
No phase reversal  
APPLICATIONS  
200  
180  
160  
140  
120  
100  
80  
Process control front-end amplifiers  
Wireless base station control circuits  
Optical network control circuits  
Instrumentation  
Sensors and controls: thermocouples, resistor thermal  
detectors (RTDs), strain bridges, and shunt current  
measurements  
V
SOIC  
= ±5V  
SY  
Precision filters  
60  
GENERAL DESCRIPTION  
40  
The ADA4077-2 is a dual amplifier featuring 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.  
20  
0
V
(µV)  
OS  
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 ADA4077-2 is  
useful in line powered and portable instrumentation, precision  
filters, and voltage or current measurement and level setting.  
Figure 3. Offset Voltage Distribution  
Table 1. Evolution of Precision Devices by Generation  
Op Amp 1st  
2nd  
3rd  
4th  
5th  
6th  
Single  
Dual  
OP07 OP77 OP177 OP1177 AD8677  
OP2177  
OP4177  
ADA4077-2  
Quad  
Unlike the amplifiers of some competitors, the ADA4077-2 is  
specified over the extended industrial temperature range for  
operation from −40°C to +125°C with MSL1 rating for the most  
demanding operating environments. It is available in 8-lead SOIC  
(including the B-Grade) and MSOP (A-Grade only) packages.  
Rev. 0  
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 registered trademarks 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  
Technical Support  
©2012 Analog Devices, Inc. All rights reserved.  
www.analog.com  
 
 
 
 
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