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OP491GRU Datasheet

  • OP491GRU

  • OP-AMP|QUAD|BICMOS|TSSOP|14PIN|PLASTIC

  • 20頁(yè)

  • ETC

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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 A/Amp
Wide Bandwidth: 3 MHz
Slew Rate: 0.5 V/ s
Low Offset Voltage: 700 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
PIN CONFIGURATIONS
8-Lead Narrow-Body SO
1
2
3
4
8
8-Lead Narrow-Body SO
1
2
3
4
8
OP191
7
6
5
OP291
7
6
5
8-Lead Plastic DIP
14-Lead Plastic DIP
OUTA
鈥揑NA
1
2
3
4
OP291
8
7
6
5
+V
OUTB
鈥揑NB
+INB
OUTA 1
鈥揑NA
2
14 OUTD
13 鈥揑ND
12 +IND
GENERAL DESCRIPTION
+INA
鈥揤
+INA 3
+V
4
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 V single supply as well as
鹵
5 V 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 V beyond either supply without any phase inver-
sion 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-lead plastic
SO surface mount packages
*
. The OP491 quad is available in
14-lead DIPs and narrow 14-lead SO packages. Consult factory
for OP491 TSSOP availability.
*
The OP291 dual is also available in 8-lead Plastic Dip.
OP491
11 鈥揤
10 +INC
9
8
鈥揑NC
OUTC
+INB 5
鈥揑NB
6
OUTB 7
14-Lead SO
14-Lead TSSOP
1
2
3
4
5
6
7
14
13
12
OUTA 1
鈥揑NA
+V
鈥揑NB
2
4
6
+INA 3
14 OUTD
13 鈥揑ND
12 +IND
OP491
OP491
11 鈥揤
10 +INC
9 鈥揑NC
8 OUTC
11
10
9
8
+INB 5
OUTB 7
REV. A
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. 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: 781/329-4700
www.analog.com
Fax: 781/326-8703
漏 Analog Devices, Inc., 2002

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