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OP291GS-REEL7

更新时间： 2024-09-23 02:54:27
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Micropower Single-Supply Rail-to-Rail Input/Output Op Amps

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OP291GS-REEL7 数据手册

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Micropower Single-Supply  
Rail-to-Rail Input/Output Op Amps  
OP191/OP291/OP491  
PIN CONFIGURATIONS  
FEATURES  
Single-supply operation: 2.7 V to 12 V  
Wide input voltage range  
Rail-to-rail output swing  
Low supply current: 300 μA/amp  
Wide bandwidth: 3 MHz  
Slew rate: 0.5 V/μs  
OUTA  
–INA  
+INA  
–V  
1
2
3
4
8
7
6
5
+V  
NC  
–INA  
+INA  
–V  
1
2
3
4
8
7
6
5
NC  
OUTB  
–INB  
+INB  
+V  
OP291  
OP191  
OUTA  
NC  
NC = NO CONNECT  
Figure 1. 8-Lead Narrow-Body SOIC  
Figure 2. 8-Lead Narrow-Body SOIC  
Low offset voltage: 700 μV  
No phase reversal  
OUTA  
–INA  
+INA  
+V  
1
2
3
4
5
6
7
14 OUTD  
13 –IND  
12 +IND  
11 –V  
OUTA  
–INA  
+INA  
+V  
1
2
3
4
5
6
7
14 OUTD  
13 –IND  
12 +IND  
11 –V  
-
-
-
-
+
+
APPLICATIONS  
Industrial process control  
Battery-powered instrumentation  
Power supply control and protection  
Telecommunications  
OP491  
OP491  
+INB  
–INB  
OUTB  
10 +INC  
+INB  
–INB  
OUTB  
10 +INC  
9
8
–INC  
+
+
9
8
–INC  
OUTC  
OUTC  
Remote sensors  
Low voltage strain gage amplifiers  
DAC output amplifiers  
Figure 3. 14-Lead Narrow-Body SOIC  
Figure 4. 14-Lead PDIP  
OUTA  
–INA  
+INA  
+V  
1
2
3
4
5
6
7
14 OUTD  
13 –IND  
12 +IND  
11 –V  
OP491  
+INB  
–INB  
OUTB  
10 +INC  
9
8
–INC  
OUTC  
Figure 5. 14-Lead TSSOP  
GENERAL DESCRIPTION  
The OP191, OP291, and OP491 are single, dual, and quad  
micropower, single-supply, 3 MHz bandwidth amplifiers  
featuring rail-to-rail inputs and outputs. All are guaranteed to  
operate from a +3 V single supply as well as ±± V dual supplies.  
The ability to swing rail-to-rail at both the input and output  
enables designers to build multistage filters in single-supply  
systems and to maintain high signal-to-noise ratios.  
The OP191/OP291/OP491 are specified over the extended  
industrial –40°C to +12±°C temperature range. The OP191  
single and OP291 dual amplifiers are available in 8-lead plastic  
SOIC surface-mount packages. The OP491 quad is available in a  
14-lead PDIP, a narrow 14-lead SOIC package, and a 14-lead  
TSSOP.  
Fabricated on Analog Devices CBCMOS process, the OPx91  
family has a unique input stage that allows the input voltage to  
safely extend 10 V beyond either supply without any phase  
inversion or latch-up. The output voltage swings to within  
millivolts of the supplies and continues to sink or source  
current all the way to the supplies.  
Applications for these amplifiers include portable tele-  
communications equipment, power supply control and  
protection, and interface for transducers with wide output  
ranges. Sensors requiring a rail-to-rail input amplifier include  
Hall effect, piezo electric, and resistive transducers.  
Rev. D  
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 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  
Fax: 781.461.3113  
www.analog.com  
©2006 Analog Devices, Inc. All rights reserved.  
 
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OP291GS-REEL7 替代型号

型号 品牌 替代类型 描述 数据表
OP291GSZ-REEL7 ADI

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