Precision Micropower, Low Noise CMOS, Rail-to-Rail Input/Output Operational Amplifiers AD8603/AD8607/AD8609 FEATURES PIN CONFIGURATIONS Low offset voltage: 50 V maximum OUT 1 5 V+ AD8603 Low input bias current: 1 pA maximum TOP VIEW V 2 Single-supply operation: 1.8 V to 5 V (Not to Scale) Low noise: 22 nV/Hz +IN 3 4 IN Micropower: 50 A maximum Figure 1. 5-Lead TSOT (UJ Suffix) Low distortion No phase reversal OUT A 1 8 V+ Unity gain stable AD8607 IN A 2 7 OUT B TOP VIEW +IN A 3 6 IN B (Not to Scale) V 4 5 +IN B APPLICATIONS Battery-powered instrumentation Figure 2. 8-Lead MSOP (RM Suffix) Multipole filters Sensors OUT A 1 8 V+ Low power ASIC input or output amplifiers AD8607 IN A 2 7 OUT B 3 6 +IN A TOP VIEW IN B (Not to Scale) V 4 5 +IN B GENERAL DESCRIPTION Figure 3. 8-Lead SOIC (R Suffix) 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 OUT A 1 14 OUT D current noise. IN A 2 13 IN D 3 +IN A AD8609 12 +IN D These amplifiers use a patented trimming technique that achieves TOP VIEW 4 V+ 11 V superior precision without laser trimming. The parts are fully (Not to Scale) 5 +IN B 10 +IN C specified to operate from 1.8 V to 5.0 V single supply or from 6 9 IN B IN C 0.9 V to 2.5 V dual supply. The combination of low offsets, low OUT B 7 8 OUT C noise, very low input bias currents, and low power consumption makes the AD8603/AD8607/AD8609 especially useful in portable Figure 4. 14-Lead TSSOP (RU Suffix) and loop-powered instrumentation. The ability to swing rail to rail at both the input and output OUT A 1 14 OUT D enables designers to buffer CMOS ADCs, DACs, ASICs, and IN A 2 13 IN D other wide output swing devices in low power, single-supply 3 12 +IN A +IN D AD8609 systems. V+ 4 TOP VIEW 11 V (Not to Scale) +IN B 5 10 +IN C The AD8603 is available in a tiny 5-lead TSOT package. The IN B 6 9 IN C AD8607 is available in 8-lead MSOP and 8-lead SOIC packages. OUT B 7 8 OUT C The AD8609 is available in 14-lead TSSOP and 14-lead SOIC Figure 5. 14-Lead SOIC (R Suffix) packages. 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 20032008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 04356-001 04356-003 04356-002 04356-005 04356-004AD8603/AD8607/AD8609 TABLE OF CONTENTS Features .............................................................................................. 1 Applicat ions ..................................................................................... 12 Applications ....................................................................................... 1 No Phase Reversal ...................................................................... 12 General Description ......................................................................... 1 Input Overvoltage Protection ................................................... 12 Pin Configurations ........................................................................... 1 Driving Capacitive Loads .......................................................... 12 Revision History ............................................................................... 2 Proximity Sensors ....................................................................... 13 Specif icat ions ..................................................................................... 3 Composite Amplifiers ................................................................ 13 Electrical Characteristics ............................................................. 3 Battery-Powered Applications .................................................. 13 Absolute Maximum Ratings ............................................................ 5 Photodiodes ................................................................................ 13 ESD Caution .................................................................................. 5 Outline Dimensions ....................................................................... 14 Typical Performance Characteristics ............................................. 6 Ordering Guide .......................................................................... 16 REVISION HISTORY 6/08Rev. 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 6/05Rev. A to Rev. B Updated Figure 49 .......................................................................... 15 Changes to Ordering Guide .......................................................... 17 10/03Rev. 0 to Rev. A Added AD8607 and AD8609 Parts .................................. Universal Changes to Specifications ................................................................ 3 Changes to Figure 35 ...................................................................... 10 Added Figure 41 .............................................................................. 11 8/03Revision 0: Initial Version Rev. C Page 2 of 16