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OP481GS Datasheet

  • OP481GS

  • Ultralow Power, Rail-to-Rail Output Operational Amplifiers

  • 488.26KB

  • 16頁

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Ultralow Power, Rail-to-Rail Output
Operational Amplifiers
OP281/OP481
FEATURES
Low Supply Current: 4 A/Amplifier Max
Single-Supply Operation: 2.7 V to 12 V
Wide Input Voltage Range
Rail-to-Rail Output Swing
Low Offset Voltage: 1.5 mV
No Phase Reversal
APPLICATIONS
Comparator
Battery-Powered Instrumentation
Safety Monitoring
Remote Sensors
Low Voltage Strain Gage Amplifiers
PIN CONFIGURATIONS
8-Lead SOIC
(R Suffix)
OUT A
鈥揑N A
+IN A
V鈥?/div>
1
8
V+
OUT B
鈥揑N B
+IN B
8-Lead TSSOP
(RU Suffix)
1
8
5
OP281
4
5
OP281
4
14-Lead
Narrow-Body SOIC
(R Suffix)
OUT A
鈥揑N A
+IN A
V+
+IN B
鈥揑N B
OUT B
1
14
OUT D
鈥揑N D
+IN D
V鈥?/div>
+IN C
鈥揑N C
OUT C
14-Lead TSSOP
(RU Suffix)
1
14
OP481
7
8
GENERAL DESCRIPTION
The OP281 and OP481 are dual and quad ultralow power, single-
supply amplifiers featuring rail-to-rail outputs. Each operates
from supplies as low as 2.0 V and are specified at +3 V and +5 V
single supply as well as
鹵
5 V dual supplies.
Fabricated on Analog Devices鈥?CBCMOS process, the
OP281/OP481 features a precision bipolar input and an output
that 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 safety monitoring,
portable equipment, battery and power supply control, and
signal conditioning and interfacing for transducers in very low
power systems.
The output鈥檚 ability to swing rail-to-rail and not increase supply
current, when the output is driven to a supply voltage, enables
the OP281/OP481 to be used as comparators in very low power
systems. This is enhanced by their fast saturation recovery time.
Propagation delays are 250
ms.
The OP281/OP481 are specified over the extended industrial
temperature range (鈥?0鈭濩 to +85鈭濩). The OP281 dual amplifier
is available in 8-lead SOIC surface-mount and TSSOP packages.
The OP481 quad amplifier is available in narrow 14-lead SOIC
and TSSOP packages.
OP481
7
8
NOTE: PIN ORIENTATION IS EQUIVALENT FOR
EACH PACKAGE VARIATION
REV. B
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. 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
www.analog.com
Fax: 781/326-8703
漏 2003 Analog Devices, Inc. All rights reserved.

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