CMOS Single-Supply, Rail-to-Rail Input/Output Operational Amplifiers with Shutdown AD8591/AD8592/AD8594 FEATURES PIN CONFIGURATIONS Single-supply operation: 2.5 V to 6 V OUT A 1 6 V+ High output current: 250 mA AD8591 V 2 5 SD TOP VIEW Extremely low shutdown supply current: 100 nA (Not to Scale) Low supply current: 750 A/Amp +IN A 3 4 IN A Wide bandwidth: 3 MHz Slew rate: 5 V/s Figure 1. 6-Lead SOT-23 (RJ Suffix) No phase reversal OUT A 1 10 V+ Very low input bias current IN A 2 9 OUT B AD8592 High impedance outputs when in shutdown mode +IN A 3 8 IN B TOP VIEW Unity-gain stable (Not to Scale) 4 7 +IN B V SDA 5 6 SDB APPLICATIONS Figure 2. 10-Lead MSOP (RM Suffix) Mobile communication handset audio OUT A 1 16 OUT D PC audio IN A 2 15 IN D PCMCIA/modem line driving +IN A 3 14 +IN D AD8594 V+ 4 13 V Battery-powered instrumentation TOP VIEW +IN B 5 (Not to Scale) 12 +IN C Data acquisition IN B 6 11 IN C ASIC input or output amplifiers OUT B 7 10 OUT C LCD display reference level drivers NC 8 9 SD NC = NO CONNECT GENERAL DESCRIPTION Figure 3. 16-Lead Narrow SOIC (R Suffix) The AD8591, AD8592, and AD8594 are single, dual, and quad 1 16 OUT A OUT D rail-to-rail, input and output single-supply amplifiers featuring 2 IN A 15 IN D 250 mA output drive current and a power saving shutdown mode. 3 14 +IN A +IN D AD8594 The AD8592 includes an independent shutdown function for TOP VIEW 4 13 V+ V (Not to Scale) each amplifier. When both amplifiers are in shutdown mode, 5 12 +IN B +IN C the total supply current is reduced to less than 1 A. The AD8591 6 11 IN B IN C and AD8594 include a single master shutdown function that 7 10 OUT B OUT C reduces the total supply current to less than 1 A. All amplifier 8 9 SD NC outputs are in a high impedance state when in shutdown mode. NC = NO CONNECT These amplifiers have very low input bias currents, making them Figure 4. 16-Lead TSSOP (RU Suffix) suitable for integrators and diode amplification. Outputs are stable with virtually any capacitive load. Supply current is less than 750 A per amplifier in active mode. The AD8591, AD8592, and AD8594 are specified over the industrial temperature range (40C to +85C). The AD8591, Applications for these amplifiers include audio amplification for single, is available in the tiny 6-lead SOT-23 package. The AD8592, portable computers, portable phone headsets, sound ports, sound dual, is available in the 10-lead surface-mount MSOP package. The cards, and set-top boxes. The AD859x family is capable of driving AD8594, quad, is available in 16-lead narrow SOIC and 16-lead heavy capacitive loads, such as LCD panel reference levels. TSSOP packages. The ability to swing rail to rail at both the input and output enables designers to buffer CMOS DACs, ASICs, and other wide output swing devices in single-supply systems. Rev. B 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 2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 01106-001 01106-003 01106-002 01106-004AD8591/AD8592/AD8594 TABLE OF CONTENTS Features .............................................................................................. 1 Output Short-Circuit Protection .............................................. 11 Applications ....................................................................................... 1 Power Dissipation....................................................................... 11 General Description ......................................................................... 1 Capacitive Loading ..................................................................... 12 Pin Configurations ........................................................................... 1 PC98-Compliant Headphone/Speaker Amplifier .................. 12 Revision History ............................................................................... 2 A Combined Microphone and Speaker Amplifier for Cellphone and Portable Headsets ............................................ 13 Specif icat ions ..................................................................................... 3 An Inexpensive Sample-and-Hold Circuit ............................. 13 Electrical Characteristics ............................................................. 3 Direct Access Arrangement for PCMCIA Modems Absolute Maximum Ratings ............................................................ 5 (Telephone Line Interface) ........................................................ 14 Thermal Resistance ...................................................................... 5 Single-Supply Differential Line Driver .................................... 14 ESD Caution .................................................................................. 5 Outline Dimensions ....................................................................... 15 Typical Performance Characteristics ............................................. 6 Ordering Guide .......................................................................... 16 Theory of Operation ...................................................................... 11 Input Voltage Protection............................................................ 11 Output Phase Reversal ............................................................... 11 REVISION HISTORY 1/09Rev. A to Rev. B Updated Format .................................................................. Universal Changes to Table 1 ............................................................................ 3 Changes to Table 2 ............................................................................ 4 Deleted Spice Model for AD8591/AD8592/AD8594 Amplifiers Sections ............................................................................................ 12 Changes to PC98-Compliant Headphone/Speaker Amplifier Section and Figure 38 ..................................................................... 12 Changes to Figure 39 ...................................................................... 13 Changes to Figure 42 and Figure 43 ............................................. 14 Updated Outline Dimensions ....................................................... 15 Changes to Ordering Guide .......................................................... 16 Rev. B Page 2 of 16