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OP279GRU Datasheet

  • OP279GRU

  • Rail-to-Rail High Output Current Operational Amplifiers

  • 231.29KB

  • 16頁

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a
FEATURES
Rail-to-Rail Inputs and Outputs
High Output Current: 60 mA
Single Supply: +5 V to +12 V
Wide Bandwidth: 5 MHz
High Slew Rate: 3 V/ s
Low Distortion: 0.01%
Unity-Gain Stable
No Phase Reversal
Short Circuit Protected
Drives Capacitive Loads: 10 nF
APPLICATIONS
Multimedia
Telecom
DAA Transformer Driver
LCD Driver
Low Voltage Servo Control
Modems
FET Drivers
Rail-to-Rail High Output
Current Operational Amplifiers
OP179/OP279
PIN CONFIGURATIONS
5-Lead SOT-23-5
(RT-5)
OP179
OUT A 1
V+ 2
+IN A 3
5 V鈥?/div>
4
IN A
8-Lead SOIC and TSSOP
SO-8 (R) and RU-8
OUT A 1
IN A 2
+IN A 3
V
4
8 V+
OP279
7 OUT B
6
IN B
5 +IN B
GENERAL DESCRIPTION
8-Lead Plastic DIP
(N-8)
The OP179 and OP279 are rail-to-rail, high output current,
single-supply amplifiers. They are designed for low voltage
applications that require either current or capacitive load drive
capability. The OP179/OP279 can sink and source currents of
鹵
60 mA (typical) and are stable with capacitive loads to 10 nF.
Applications that benefit from the high output current of the
OP179/OP279 include driving headphones, displays, transform-
ers and power transistors. The powerful output is combined with a
unique input stage that maintains very low distortion with
wide common-mode range, even in single supply designs.
The OP179/OP279 can be used as a buffer to provide much
greater drive capability than can usually be provided by CMOS
outputs. CMOS ASICs and DAC often have outputs that can
swing to both the positive supply and ground, but cannot drive
more than a few milliamps.
Bandwidth is typically 5 MHz and the slew rate is 3 V/碌s, mak-
ing these amplifiers well suited for single supply applications
that require audio bandwidths when used in high gain configu-
rations. Operation is guaranteed from voltages as low as 4.5 V,
up to 12 V.
OUT A
鈥揑N A
+IN A
鈥揤
OP279
+V
OUT B
鈥揑N B
+IN B
Very good audio performance can be attained when using the
OP179/OP279 in +5 volt systems. THD is below 0.01% with a
600
鈩?/div>
load, and noise is a respectable 21 nV/鈭欻z. Supply cur-
rent is less than 3.5 mA per amplifier.
The single OP179 is available in the 5-lead SOT-23-5 package.
It is specified over the industrial (鈥?0擄C to +85擄C) temperature
range.
The OP279 is available in 8-lead plastic DIP, TSSOP and
SO-8 surface mount packages. They are specified over the
industrial (鈥?0擄C to +85擄C) temperature range.
REV. F
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: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
漏 Analog Devices, Inc., 1999

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