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OP291GP

更新时间： 2024-11-28 22:25:23
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亚德诺 - ADI 运算放大器
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20页 481K
描述
Micropower Single-Supply Rail-to-Rail Input/Output Op Amps

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OP291GP 数据手册

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Micropower Single-Supply  
Rail-to-Rail Input/Output Op Amps  
a
OP191/OP291/OP491  
FEATURES  
O P 191/O P 291/O P 491 P IN CO NFIGURATIO NS  
Single-Supply Operation: 2.7 V to 12 V  
Wide Input Voltage Range  
Rail-to-Rail Output Sw ing  
Low Supply Current: 300 µA/ Am p  
Wide Bandw idth: 3 MHz  
Slew Rate: 0.5 V/ µs  
8-Lead Narrow-Body SO  
(S Suffix)  
8-Lead Epoxy D IP  
(P Suffix)  
1
2
3
4
8
7
6
5
NC  
1
2
3
4
8
7
6
5
NC  
–INA  
+INA  
–V  
OP191  
OP191  
V+  
Low Offset Voltage: 700 µV  
No Phase Reversal  
OUTA  
NC  
APPLICATIONS  
NC = NO CONNECT  
Industrial Process Control  
Battery Pow ered Instrum entation  
Pow er Supply Control and Protection  
Telecom  
8-Lead Narrow-Body SO  
(S Suffix)  
8-Lead Epoxy D IP  
(P Suffix)  
Rem ote Sensors  
Low Voltage Strain Gage Am plifiers  
DAC Output Am plifier  
1
2
3
4
8
7
6
5
+V  
1
2
3
4
8
7
6
5
OUTA  
–INA  
+INA  
–V  
OP291  
OP291  
OUTB  
–INB  
+INB  
GENERAL D ESCRIP TIO N  
T he OP191, OP291 and OP491 are single, dual and quad  
micropower, single-supply, 3 MHz bandwidth amplifiers fea-  
turing rail-to-rail inputs and outputs. All are guaranteed to  
operate from a 3 volt single supply as well as ±5 volt dual  
supplies.  
14-Lead Epoxy D IP  
(P Suffix)  
14-Lead SO  
(S Suffix)  
Fabricated on Analog Devices’ CBCMOS process, the OP191  
family has a unique input stage that allows the input voltage to  
safely extend 10 volts beyond either supply without any phase  
inversion or latch-up. T he output voltage swings to within  
millivolts of the supplies and continues to sink or source  
current all the way to the supplies.  
1
2
3
4
5
6
7
14  
OUTD  
OUTA  
–INA  
+INA  
+V  
1
2
3
4
5
6
7
14  
13  
12  
OUTA  
–INA  
+INA  
+V  
OUTD  
–IND  
+IND  
13 –IND  
12 +IND  
11 –V  
OP491  
10  
9
+INC  
–INC  
OUTC  
+INB  
–INB  
OUTB  
11 –V  
OP491  
10 +INC  
+INB  
–INB  
OUTB  
8
9
8
–INC  
Applications for these amplifiers include portable telecom  
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.  
OUTC  
T he ability to swing rail-to-rail at both the input and output  
enables designers to build multistage filters in single-supply  
systems and maintain high signal-to-noise ratios.  
14-Lead  
TSSO P  
(RU Suffix)  
T he OP191/OP291/OP491 are specified over the extended  
industrial (–40°C to +125°C) temperature range. T he OP191  
single and OP291 dual amplifiers are available in 8-pin plastic  
DIPs and SO surface mount packages. T he OP491 quad is  
available in 14-pin DIPs and narrow 14-pin SO packages.  
Consult factory for OP491 T SSOP availability.  
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
OP491  
8
REV. 0  
Inform ation furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assum ed by Analog Devices for its  
use, nor for any infringem ents of patents or other rights of third parties  
which m ay result from its use. No license is granted by im plication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norw ood. MA 02062-9106, U.S.A.  
Tel: 617/ 329-4700 Fax: 617/ 326-8703  
1234567...20

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