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Analog Devices Semiconductor Electronic Components Datasheet

AD8609 Datasheet

Rail-to-Rail Input/Output Operational Amplifiers

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AD8609 pdf
Precision Micropower, Low Noise CMOS,
Rail-to-Rail Input/Output Operational Amplifiers
AD8603/AD8607/AD8609
FEATURES
Low offset voltage: 50 μV maximum
Low input bias current: 1 pA maximum
Single-supply operation: 1.8 V to 5 V
Low noise: 22 nV/√Hz
Micropower: 50 μA maximum
Low distortion
No phase reversal
Unity gain stable
APPLICATIONS
Battery-powered instrumentation
Multipole filters
Sensors
Low power ASIC input or output amplifiers
GENERAL DESCRIPTION
The AD8603/AD8607/AD8609 are single/dual/quad micro-
power rail-to-rail input and output amplifiers, respectively, that
feature very low offset voltage as well as low input voltage and
current noise.
These amplifiers use a patented trimming technique that achieves
superior precision without laser trimming. The parts are fully
specified to operate from 1.8 V to 5.0 V single supply or from
±0.9 V to ±2.5 V dual supply. The combination of low offsets, low
noise, very low input bias currents, and low power consumption
makes the AD8603/AD8607/AD8609 especially useful in portable
and loop-powered instrumentation.
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 low power, single-supply
systems.
The AD8603 is available in a tiny 5-lead TSOT package. The
AD8607 is available in 8-lead MSOP and 8-lead SOIC packages.
The AD8609 is available in 14-lead TSSOP and 14-lead SOIC
packages.
PIN CONFIGURATIONS
OUT 1 AD8603 5 V+
V– 2 TOP VIEW
(Not to Scale)
+IN 3
4 –IN
Figure 1. 5-Lead TSOT (UJ Suffix)
OUT A 1
–IN A 2
+IN A 3
V– 4
AD8607
TOP VIEW
(Not to Scale)
8 V+
7 OUT B
6 –IN B
5 +IN B
Figure 2. 8-Lead MSOP (RM Suffix)
OUT A 1
–IN A 2
AD8607
8 V+
7 OUT B
+IN A 3 TOP VIEW 6 –IN B
V– 4 (Not to Scale) 5 +IN B
Figure 3. 8-Lead SOIC (R Suffix)
OUT A 1
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
14 OUT D
AD8609
TOP VIEW
(Not to Scale)
13 –IN D
12 +IN D
11 V–
10 +IN C
9 –IN C
8 OUT C
Figure 4. 14-Lead TSSOP (RU Suffix)
OUT A 1
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
AD8609
TOP VIEW
(Not to Scale)
14 OUT D
13 –IN D
12 +IN D
11 V–
10 +IN C
9 –IN C
8 OUT C
Figure 5. 14-Lead SOIC (R Suffix)
Rev. C
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. Specifications subject to change without notice. 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 ©2003–2008 Analog Devices, Inc. All rights reserved.


Analog Devices Semiconductor Electronic Components Datasheet

AD8609 Datasheet

Rail-to-Rail Input/Output Operational Amplifiers

No Preview Available !

AD8609 pdf
AD8603/AD8607/AD8609
TABLE OF CONTENTS
Features .............................................................................................. 1 
Applications....................................................................................... 1 
General Description ......................................................................... 1 
Pin Configurations ........................................................................... 1 
Revision History ............................................................................... 2 
Specifications..................................................................................... 3 
Electrical Characteristics............................................................. 3 
Absolute Maximum Ratings............................................................ 5 
ESD Caution.................................................................................. 5 
Typical Performance Characteristics ............................................. 6 
REVISION HISTORY
6/08—Rev. B to Rev. C
Changes to Table 1............................................................................ 3
Changes to Table 2............................................................................ 4
Changes to Figure 15........................................................................ 7
Changes to Figure 33...................................................................... 10
Changes to Figure 45 and Figure 47............................................. 13
Updated Outline Dimensions ....................................................... 14
Changes to Ordering Guide .......................................................... 16
6/05—Rev. A to Rev. B
Updated Figure 49 .......................................................................... 15
Changes to Ordering Guide .......................................................... 17
10/03—Rev. 0 to Rev. A
Added AD8607 and AD8609 Parts ..................................Universal
Changes to Specifications ................................................................ 3
Changes to Figure 35...................................................................... 10
Added Figure 41.............................................................................. 11
8/03—Revision 0: Initial Version
Applications..................................................................................... 12 
No Phase Reversal ...................................................................... 12 
Input Overvoltage Protection ................................................... 12 
Driving Capacitive Loads.......................................................... 12 
Proximity Sensors....................................................................... 13 
Composite Amplifiers................................................................ 13 
Battery-Powered Applications .................................................. 13 
Photodiodes ................................................................................ 13 
Outline Dimensions ....................................................................... 14 
Ordering Guide .......................................................................... 16 
Rev. C | Page 2 of 16


Part Number AD8609
Description Rail-to-Rail Input/Output Operational Amplifiers
Maker Analog Devices
Total Page 16 Pages
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