1.8 V, Micropower, Zero-Drift, Rail-to-Rail Input/Output Op Amps Data Sheet ADA4051-1/ADA4051-2 FEATURES PIN CONFIGURATIONS Very low supply current: 13 A typical OUT 1 5 V+ Low offset voltage: 15 V maximum ADA4051-1 V 2 TOP VIEW Offset voltage drift: 20 nV/C (Not to Scale) Single-supply operation: 1.8 V to 5.5 V +IN 3 4 IN High PSRR: 110 dB minimum High CMRR: 110 dB minimum Figure 1. 5-Lead SOT-23 (RJ-5) Rail-to-rail input/output +IN 1 Unity-gain stable 5 V+ ADA4051-1 Extended industrial temperature range V 2 TOP VIEW (Not to Scale) APPLICATIONS IN 3 4 OUT Pressure and position sensors Figure 2. 5-Lead SC-70 (KS-5) Temperature measurements Electronic scales OUT A 1 8 V+ IN A 2 ADA4051-2 7 OUT B Medical instrumentation TOP VIEW +IN A 3 6 IN B Battery-powered equipment (Not to Scale) V 4 5 +IN B Handheld test equipment Figure 3. 8-Lead MSOP (RM-8) OUT A 1 8V+ 7OUT B IN A 2 ADA4051-2 TOP VIEW +IN A 3 6IN B (Not to Scale) V 4 5+IN B NOTES 1. IT IS RECOMMENDED THAT THE EXPOSED PAD BE CONNECTED TO V. Figure 4. 8-Lead LFCSP (CP-8-13) The ADA4051-1/ADA4051-2 are specified for the extended GENERAL DESCRIPTION industrial temperature range of 40C to +125C. The ADA4051-1 The ADA4051-1/ADA4051-2 are CMOS, micropower, zero- amplifier is available in 5-lead SOT-23 and 5-lead SC-70 packages. drift operational amplifiers utilizing an innovative chopping The ADA4051-2 amplifier is available in an 8-lead MSOP and an technique. These amplifiers feature rail-to-rail input/output 8-lead LFCSP. swing and extremely low offset voltage while operating from a 1.8 V to 5.5 V power supply. In addition, these amplifiers offer The ADA4051-1/ADA4051-2 are members of a growing series of zero-drift op amps offered by Analog Devices, Inc. Refer to high power supply rejection ratio (PSRR) and common-mode Table 1 for a list of these devices. rejection ratio (CMRR) while operating with a typical supply current of 13 A per amplifier. This combination of features Table 1. Op Amps makes the ADA4051-1/ADA4051-2 amplifiers ideal choices for Supply Low Power, 5 V 5 V 16 V battery-powered applications where high precision and low Single AD8538 AD8628 AD8638 power consumption are important. Dual AD8539 AD8629 AD8639 Quad AD8630 Rev. C Document Feedback 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 20092016 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 08056-066 08056-064 08056-001 08056-065ADA4051-1/ADA4051-2 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Thermal Resistance .......................................................................7 Applications ....................................................................................... 1 Power Sequencing .........................................................................7 Pin Configurations ........................................................................... 1 ESD Caution...................................................................................7 General Description ......................................................................... 1 Typical Performance Characteristics ..............................................8 Revision History ............................................................................... 2 Theory of Operation ...................................................................... 17 Specifications ..................................................................................... 3 Input Voltage Range ................................................................... 18 Electrical Characteristics1.8 V Operation ............................ 3 Output Phase Reversal ............................................................... 18 Electrical Characteristics5 V Operation................................ 5 Outline Dimensions ....................................................................... 19 Absolute Maximum Ratings ............................................................ 7 Ordering Guide .......................................................................... 20 REVISION HISTORY 3/16Rev. B to Rev. C 10/09Rev. 0 to Rev. A Changed CP-8-2 to CP-8-13 ........................................ Throughout Added ADA4051-1, 5-Lead SOT-23 Package ................. Universal Changes to Figure 4 .......................................................................... 1 Added ADA4051-2, 8-Lead LFCSP Package .................. Universal Changes to Offset Voltage Parameter and Input Resistance Changes to the Features and General Description Section, Parameter, Table 2 ............................................................................. 3 Added Figure 1 and Figure 3 ............................................................ 1 Changes to Offset Voltage Parameter and Input Resistance Moved Electrical Characteristics1.8 V Operation Section ..... 3 Parameter, Table 3 ............................................................................. 5 Changes to Offset Voltage Parameter and Supply Current per Changes to Table 5 ............................................................................ 7 Amplifier Parameter, Table 2 ........................................................... 3 Updated Outline Dimensions ....................................................... 19 Moved Electrical Characteristics5 V Operation Section ......... 4 Changes to Ordering Guide .......................................................... 20 Changes to Offset Voltage Parameter and Supply Current per Amplifier Parameter, Table 2 ........................................................... 4 1/10Rev. A to Rev. B Changes to Thermal Resistance Section and Table 5 ................... 5 Added ADA4051-1, 5-Lead SC-70 Package .................... Universal Changes to Figure 22 and Figure 25................................................ 9 Added Figure 2 Renumbered Sequentially .................................. 1 Changes to Theory of Operation Section.................................... 15 Changes to Figure 4 and General Description Section ............... 1 Updated Outline Dimensions ....................................................... 17 Changes to Electrical Characteristics1.8 V Operation Section Changes to Ordering Guide .......................................................... 18 and Table 2 ......................................................................................... 3 Changes to Electrical Characteristics5 V Operation Section 7/09Revision 0: Initial Version and Table 3 ......................................................................................... 4 Changes to Table 5 ............................................................................ 5 Updated Outline Dimensions ....................................................... 17 Changes to Ordering Guide .......................................................... 18 Rev. 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