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OP270EZ

更新时间： 2024-11-04 04:11:51
品牌 Logo 应用领域
亚德诺 - ADI 运算放大器
页数 文件大小 规格书
16页 516K
描述
Dual Very Low Noise Precision Operational Amplifier

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Dual Very Low Noise Precision  
Operational Amplifier  
a
OP270  
CONNECTION DIAGRAMS  
FEATURES  
Very Low Noise 5 nV/÷Hz @ 1 kHz Max  
Excellent Input Offset Voltage 75 ␮V Max  
Low Offset Voltage Drift 1 ␮V/؇C Max  
Very High Gain 1500 V/mV Min  
Outstanding CMR 106 dB Min  
Slew Rate 2.4 V/␮s Typ  
16-Lead SOIC  
(S-Suffix)  
8-Lead PDIP (P-Suffix)  
8-Lead CERDIP  
(Z-Suffix)  
16  
15  
14  
13  
1
2
3
4
5
6
7
8
–IN A  
+IN A  
NC  
OUT A  
NC  
8
7
6
5
1
2
3
4
OUT A  
–IN A  
+IN A  
V–  
V+  
NC  
Gain Bandwidth Product 5 MHz Typ  
Industry-Standard 8-Lead Dual Pinout  
OUT B  
–IN B  
+IN B  
A
B
V–  
V+  
OP270  
NC  
12 NC  
GENERAL DESCRIPTION  
OP270  
11  
10  
9
+IN B  
–IN B  
NC  
NC  
The OP270 is a high performance, monolithic, dual operational  
amplifier with exceptionally low voltage noise, 5 nV/÷Hz max at  
1 kHz. It offers comparable performance to ADI’s industry  
standard OP27.  
OUT B  
NC  
NC = NO CONNECT  
The OP270 features an input offset voltage below 75 mV and an  
offset drift under 1 mV/∞C, guaranteed over the full military tem-  
perature range. Open-loop gain of the OP270 is over 1,500,000  
into a 10 kW load, ensuring excellent gain accuracy and linearity,  
even in high gain applications. Input bias current is under 20 nA,  
which reduces errors due to signal source resistance. The OP270’s  
CMR of over 106 dB and PSRR of less than 3.2 mV/V signifi-  
cantly reduce errors due to ground noise and power supply  
fluctuations. Power consumption of the dual OP270 is one-third  
less than two OP27s, a significant advantage for power conscious  
applications. The OP270 is unity-gain stable with a gain bandwidth  
product of 5 MHz and a slew rate of 2.4 V/ms.  
The OP270 offers excellent amplifier matching, which is important  
for applications such as multiple gain blocks, low noise instru-  
mentation amplifiers, dual buffers, and low noise active filters.  
The OP270 conforms to the industry-standard 8-lead DIP pinout.  
It is pin compatible with the MC1458, SE5532/A, RM4558, and  
HA5102 dual op amps, and can be used to upgrade systems  
using those devices.  
For higher speed applications, the OP271, with a slew rate of  
8 V/ms, is recommended. For a quad op amp, see the OP470.  
SIMPLIFIED SCHEMATIC  
(One of Two Amplifiers Is Shown)  
V+  
BIAS  
OUT  
+IN  
–IN  
V–  
REV. C  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. 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 companies.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© 2003 Analog Devices, Inc. All rights reserved.  
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OP270EZ 替代型号

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