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AD8648 Datasheet(PDF) 1 Page - Analog Devices

Part No. AD8648
Description  Low Cost, 24 MHz, Rail-to-Rail, Quad Amplifiers
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD8648 Datasheet(HTML) 1 Page - Analog Devices

 
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Low Cost, 24 MHz, Rail-to-Rail,
Quad Amplifiers
AD8648
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.
FEATURES
Low offset voltage: 2.5 mV max
Single-supply operation: 2.7 V to 5.5 V
Low noise: 6 nV/√Hz
Wide bandwidth: 24 MHz
Slew rate: 12 V/μs
High output current: 150 mA
No phase reversal
Low input bias current: 1 pA
Low supply current: 2 mA max
Unity-gain stable
APPLICATIONS
Barcode scanners
Battery-powered instrumentation
Multipole filters
Sensors
ASIC input or output amplifiers
Audio
Photodiode amplification
PIN CONFIGURATIONS
1
2
3
4
5
6
7
AD8648
–IN A
+IN A
V+
OUT B
–IN B
+IN B
OUT A
14
13
12
11
10
9
8
–IN D
+IN D
V–
OUT C
–IN C
+IN C
OUT D
TOP VIEW
(Not to Scale)
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2
3
4
5
6
7
AD8648
14
13
12
11
10
9
8
TOP VIEW
(Not to Scale)
Figure 1. 14-Lead TSSOP (RU-14)
OUT A
1
IN A
2
+IN A
3
V+
4
OUT D
14
IN D
13
+IN D
12
V
11
+IN B
5
+IN C
10
IN B
6
IN C
9
OUT B
7
OUT C
8
AD8648
TOP VIEW
(Not to Scale)
1
2
3
4
14
13
12
11
5
10
6
9
7
8
AD8648
TOP VIEW
(Not to Scale)
Figure 2. 14-Lead SOIC (R-14)
GENERAL DESCRIPTION
The AD8648 is a quad, rail-to-rail, input and output, single-
supply amplifier featuring low offset voltage, wide signal
bandwidth, and low input voltage and current noise.
The combination of 24 MHz bandwidth, low offset, low noise,
and very low input bias current makes these amplifiers useful in
a wide variety of applications. Filters, integrators, photodiode
amplifiers, and high impedance sensors all benefit from the
combination of performance features. AC applications benefit
from the wide bandwidth and low distortion. The AD8648
family offers high output drive capability, which is excellent for
audio line drivers and other low impedance applications.
Applications for the part include portable and low powered
instrumentation, audio amplification for portable devices,
portable phone headsets, bar code scanners, and multipole
filters. The ability to swing rail to rail at both the input and
output enables designers to buffer CMOS ADCs, DACs, ASICs,
and other wide output swing devices in single-supply systems.


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