Precision Rail-to-Rail Input and Output Operational Amplifiers OP184/OP284/OP484 FEATURES PIN CONFIGURATIONS Single-supply operation 1 OP184 8 NC Wide bandwidth: 4 MHz DNC Low offset voltage: 65 V IN A 2 7 V+ Unity-gain stable 3 6 OUT A +IN A + High slew rate: 4.0 V/ s 4 5 DNC V TOP VIEW (Not to Scale) Low noise: 3.9 nV/Hz NOTES 1. NC = NO CONNECT APPLICATIONS 2. DNC = DO NOT CONNECT Figure 1. 8-Lead SOIC (S-Suffix) Battery-powered instrumentation Power supply control and protection Telecommunications OP284 OUT A 1 8 V+ DAC output amplifier IN A 2 OUT B 7 ADC input buffer +IN A 3 6 IN B V 4 5 +IN B GENERAL DESCRIPTION TOP VIEW (Not to Scale) The OP184/OP284/OP484 are single, dual, and quad single-supply, Figure 2. 8-Lead PDIP (P-Suffix) 4 MHz bandwidth amplifiers featuring rail-to-rail inputs and 8-Lead SOIC (S-Suffix) outputs. They are guaranteed to operate from 3 V to 36 V (or 1.5 V to 18 V). 1 14 OUT A OUT D These amplifiers are superb for single-supply applications requiring IN A 2 13 IN D both ac and precision dc performance. The combination of wide +IN A 3 12 +IN D OP484 bandwidth, low noise, and precision makes the OP184/OP284/ V+ 4 TOP VIEW 11 V (Not to Scale) OP484 useful in a wide variety of applications, including filters +IN B 5 10 +IN C 6 and instrumentation. IN B 9 IN C OUT B 7 8 OUT C Other applications for these amplifiers include portable telecom- munications equipment, power supply control and protection, Figure 3. 14-Lead PDIP (P-Suffix) 14-Lead Narrow-Body SOIC (S-Suffix) and use as amplifiers or buffers for transducers with wide output ranges. Sensors requiring a rail-to-rail input amplifier include Hall effect, piezoelectric, and resistive transducers. The ability to swing rail-to-rail at both the input and output enables designers to build multistage filters in single-supply systems and to maintain high signal-to-noise ratios. The OP184/OP284/OP484 are specified over the hot extended industrial temperature range of 40C to +125C. The single OP184 is available in 8-lead SOIC surface mount packages. The dual OP284 is available in 8-lead PDIP and SOIC surface mount packages. The quad OP484 is available in 14-lead PDIP and 14-lead, narrow-body SOIC packages. Table 1. Low Noise Op Amps Voltage Noise 0.9 nV 1.1 nV 1.8 nV 2.8 nV 3.2 nV 3.8 nV 3.9 nV Single AD797 AD8597 ADA4004-1 AD8675/ADA4075-2 OP27 AD8671 OP184 Dual AD8599 ADA4004-2 AD8676 OP270 AD8672 OP284 Quad ADA4004-4 OP470 AD8674 OP484 Rev. J 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. Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 19962011 Analog Devices, Inc. All rights reserved. 00293-002 00293-001 00293-003OP184/OP284/OP484 TABLE OF CONTENTS Features .............................................................................................. 1 Output Phase Reversal ............................................................... 15 Applications ....................................................................................... 1 Designing Low Noise Circuits in Single-Supply Applications ....................................................................................................... 15 General Description ......................................................................... 1 Overdrive Recovery ................................................................... 16 Pin Configurations ........................................................................... 1 Single-Supply, 3 V Instrumentation Amplifier ...................... 16 Revision History ............................................................................... 2 2.5 V Reference from a 3 V Supply .......................................... 17 Specifications ..................................................................................... 3 5 V Only, 12-Bit DAC Swings Rail-to-Rail ............................. 17 Electrical Characteristics ............................................................. 3 High-Side Current Monitor ...................................................... 18 Absolute Maximum Ratings ............................................................ 6 Capacitive Load Drive Capability ............................................ 18 Thermal Resistance ...................................................................... 6 Low Dropout Regulator with Current Limiting ..................... 19 ESD Caution .................................................................................. 6 3 V, 50 Hz/60 Hz Active Notch Filter with False Ground ..... 20 Typical Performance Characteristics ............................................. 7 Outline Dimensions ....................................................................... 21 Applications Information .............................................................. 14 Ordering Guide .......................................................................... 23 Functional Description .............................................................. 14 Input Overvoltage Protection ................................................... 14 REVISION HISTORY 4/11Rev. I to Rev J 4/06Rev. C to Rev. D Change to Figure 27 ....................................................................... 10 Changes to Table 1 ............................................................................. 3 Changes to Table 2 ............................................................................. 4 10/10Rev. H to Rev I Changes to Table 3 ............................................................................. 5 Change to Output Characteristics, Output Voltage High Deleted Reference to 1993 System Applications Guide .............. 15 Parameter, Table 2 ............................................................................. 3 3/06Rev. B to Rev. C Change to Output Characteristics, Output Voltage High Parameter, Table 3 ............................................................................. 4 Changes to Figure 1 Caption............................................................ 1 Changes to Table 1 ............................................................................. 3 7/10Rev. G to Rev. H Changes to Table 2 ............................................................................. 4 Added Table 1 .................................................................................... 1 Changes to Table 3 ............................................................................. 5 Changes to Table 4 ............................................................................. 6 2/09Rev. F to Rev. G Changes to Figure 5 through Figure 9 ............................................ 7 Change to Large Signal Voltage Gain, Table 3 .............................. 5 Changes to Functional Description Section ............................... 14 Updated Outline Dimensions ....................................................... 21 Deleted SPICE Macro Model ........................................................ 21 Changes to Ordering Guide .......................................................... 22 Updated Outline Dimensions ....................................................... 21 Changes to Ordering Guide .......................................................... 22 9/08Rev. E to Rev. F 9/02Rev. A to Rev. B Changes to General Description .................................................... 1 Changes to Figure 4 .......................................................................... 6 Changes to Pin Configurations ....................................................... 1 Changes to Specifications, Input Bias Current Maximum .......... 2 Changes to Low Dropout Regulator with Current Limiting .... 20 Changes to Ordering Guide ............................................................. 5 7/08Rev. D to Rev. E Updated Outline Dimensions ....................................................... 19 Changes to Figure 1 .......................................................................... 1 6/02Rev. 0 to Rev. A Changes to Figure 12 ........................................................................ 8 Changes to Figure 36 and Figure 37 ............................................. 12 10/96Revision 0: Initial Version Changes to Designing Low Noise Circuits in Single-Supply Applications Section ....................................................................... 15 Updated Outline Dimensions ....................................................... 21 Changes to Ordering Guide .......................................................... 22 Rev. J Page 2 of 24