Datasheet AD8531, AD8532, AD8534 (Analog Devices)

Low Cost, 250 mA Output, Single-Supply Amplifiers AD8531/AD8532/AD8534 FEATURES PIN CONFIGURATIONS Single-supply operation: 2.7 V to 6 V AD8531 OUT A 1 5 V+ High output current: ±250 mA Low supply current: 750 μA/amplifier V– 2 Wide bandwidth: 3 MHz +IN A 3 4 –IN A
01 0 9-
Slew rate: 5 V/μs
109 0
No phase reversal
Figure 1. 5-Lead SC70 and 5-Lead SOT-23
Low input currents
(KS and RJ Suffixes)
Unity gain stable Rail-to-rail input and output NC AD8531 8 NC 1 –IN A 2 7 V+ APPLICATIONS +IN A 3 6 OUT A Multimedia audio V– 4 5 NC
02 0 9-
LCD drivers
09
NC = NO CONNECT
01
ASIC input or output amplifiers
Figure 2. 8-Lead SOIC
Headphone drivers
(R Suffix)
GENERAL DESCRIPTION
The AD8531, AD8532, and AD8534 are single, dual, and quad
OUT A 1 8 V+
rail-to-rail input/output single-supply amplifiers featuring
–IN A 2 7 OUT B
250 mA output drive current. This high output current makes
+IN A 3 6 –IN B
03 0 these amplifiers excellent for driving either resistive or capacitive
V– 4 5 +IN B
99- 010 loads. AC performance is very good with 3 MHz bandwidth,
AD8532
5 V/μs slew rate, and low distortion. All are guaranteed to operate Figure 3. 8-Lead SOIC, 8-Lead TSSOP, and 8-Lead MSOP from a 3 V single supply as well as a 5 V supply. (R, RU, and RM Suffixes) The very low input bias currents enable the AD853x to be used for integrators, diode amplification, and other applications requiring
OUT A 1 14 OUT D
low input bias current. Supply current is only 750 μA per
–IN A 2 13 –IN D
amplifier at 5 V, allowing low current applications to control
+IN A 3 12 +IN D
high current loads.
V+ 4 AD8534 11 V–
Applications include audio amplification for computers, sound
+IN B 5 10 +IN C
ports, sound cards, and set-top boxes. The AD853x family is
–IN B 6 9 –IN C
4 very stable, and it is capable of driving heavy capacitive loads -00
OUT B 7 8 OUT C
9 such as those found in LCDs. 09 01 Figure 4. 14-Lead SOIC and 14-Lead TSSOP The ability to swing rail-to-rail at the inputs and outputs enables (R and RU Suffixes) designers to buffer CMOS DACs, ASICs, or other wide output swing devices in single-supply systems. The AD8531/AD8532/AD8534 are specified over the extended industrial temperature range (−40°C to +85°C). The AD8531 is available in 8-lead SOIC, 5-lead SC70, and 5-lead SOT-23 packages. The AD8532 is available in 8-lead SOIC, 8-lead MSOP, and 8-lead TSSOP surface-mount packages. The AD8534 is available in narrow 14-lead SOIC and 14-lead TSSOP surface-mount packages.
Rev. F 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 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 www.analog.com Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©1996–2008 Analog Devices, Inc. All rights reserved.
Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION PIN CONFIGURATIONS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION SHORT-CIRCUIT PROTECTION POWER DISSIPATION POWER CALCULATIONS FOR VARYING OR UNKNOWN LOADS CALCULATING POWER BY MEASURING AMBIENT AND CASE TEMPERATURE CALCULATING POWER BY MEASURING SUPPLY CURRENT INPUT OVERVOLTAGE PROTECTION OUTPUT PHASE REVERSAL CAPACITIVE LOAD DRIVE APPLICATIONS INFORMATION HIGH OUTPUT CURRENT, BUFFERED REFERENCE/REGULATOR SINGLE-SUPPLY, BALANCED LINE DRIVER SINGLE-SUPPLY HEADPHONE AMPLIFIER SINGLE-SUPPLY, 2-WAY LOUDSPEAKER CROSSOVER NETWORK DIRECT ACCESS ARRANGEMENT FOR TELEPHONE LINE INTERFACE OUTLINE DIMENSIONS ORDERING GUIDE