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OP291GP Datasheet

  • OP291GP

  • Micropower Single-Supply Rail-to-Rail Input/Output Op Amps

  • 20頁

  • AD

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a
FEATURES
Single-Supply Operation: 2.7 V to 12 V
Wide Input Voltage Range
Rail-to-Rail Output Swing
Low Supply Current: 300
碌A/Amp
Wide Bandwidth: 3 MHz
Slew Rate: 0.5 V/碌s
Low Offset Voltage: 700
碌V
No Phase Reversal
APPLICATIONS
Industrial Process Control
Battery Powered Instrumentation
Power Supply Control and Protection
Telecom
Remote Sensors
Low Voltage Strain Gage Amplifiers
DAC Output Amplifier
Micropower Single-Supply
Rail-to-Rail Input/Output Op Amps
OP191/OP291/OP491
OP191/OP291/OP491 PIN CONFIGURATIONS
8-Lead Narrow-Body SO
(S Suffix)
1
2
3
4
8
8-Lead Epoxy DIP
(P Suffix)
NC
鈥揑NA
+INA
鈥揤
1
2
3
4
OP191
7
6
5
OP191
8
7
6
5
NC
V+
OUTA
NC
NC = NO CONNECT
8-Lead Narrow-Body SO
(S Suffix)
1
2
3
4
8
8-Lead Epoxy DIP
(P Suffix)
OUTA
鈥揑NA
+INA
鈥揤
1
2
3
4
OP291
7
6
5
OP291
8
7
6
5
+V
OUTB
鈥揑NB
+INB
GENERAL DESCRIPTION
The 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
鹵
5 volt dual
supplies.
Fabricated on Analog Devices鈥?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. 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 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.
The 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.
The OP191/OP291/OP491 are specified over the extended
industrial (鈥?0擄C to +125擄C) temperature range. The OP191
single and OP291 dual amplifiers are available in 8-pin plastic
DIPs and SO surface mount packages. The OP491 quad is
available in 14-pin DIPs and narrow 14-pin SO packages.
Consult factory for OP491 TSSOP availability.
14-Lead Epoxy DIP
(P Suffix)
OUTA 1
鈥揑NA
2
14 OUTD
13 鈥揑ND
12 +IND
14-Lead SO
(S Suffix)
OUTA 1
鈥揑NA
2
4
6
+INA 3
+V
鈥揑NB
14 OUTD
13 鈥揑ND
12 +IND
+INA 3
+V
4
OP491
11 鈥揤
10 +INC
9 鈥揑NC
8 OUTC
OP491
11 鈥揤
10 +INC
9
8
鈥揑NC
OUTC
+INB 5
OUTB 7
+INB 5
鈥揑NB
6
OUTB 7
14-Lead
TSSOP
(RU Suffix)
1
2
3
4
5
6
7
14
13
12
OP491
11
10
9
8
REV. 0
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703

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