AD8531 Datasheet, PDF (1/16 Pages) Analog Devices – Low Cost, 250 mA Output Single-Supply Amplifiers

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FEATURES
Single-Supply Operation: 2.7 Volts to 6 Volts
High Output Current: ؎250 mA
Low Supply Current: 750 ␮A/Amplifier
Wide Bandwidth: 3 MHz
Slew Rate: 5 V/␮s
No Phase Reversal
Low Input Currents
Unity Gain Stable
Rail-to-Rail Input and Output
APPLICATIONS
Multimedia Audio
LCD Driver
ASIC Input or Output Amplifier
Headphone Driver
GENERAL DESCRIPTION
The AD8531, AD8532, and AD8534 are single, dual and quad
rail-to-rail input and output single-supply amplifiers featuring
250 mA output drive current. This high output current makes
these amplifiers excellent for driving either resistive or capacitive
loads. AC performance is very good with 3 MHz bandwidth,
5 V/ms slew rate and low distortion. All are guaranteed to oper-
ate from a 3 volt single supply as well as a 5 volt supply.
The very low input bias currents enable the AD853x to be used
for integrators, diode amplification and other applications requiring
low input bias current. Supply current is only 750 mA per amplifier
at 5 volts, allowing low current applications to control high
current loads.
Applications include audio amplification for computers, sound
ports, sound cards and set-top boxes. The AD853x family is
very stable and capable of driving heavy capacitive loads, such as
those found in LCDs.
The ability to swing rail-to-rail at the inputs and outputs enables
designers to buffer CMOS DACs, ASICs or other wide output
swing devices in single-supply systems.
The AD8531, AD8532, and AD8534 are specified over the
extended industrial (–40∞C to +85∞C) temperature range. The
AD8531. The AD8532 is available in 8-lead SOIC, MSOP,
TSSOP surface-mount packages. The AD8534 is available in
narrow SO-14 and 14-lead TSSOP surface-mount packages.
All TSSOP, SOT, and SC70 versions are available in tape
and reel only.
Low Cost, 250 mA Output
Single-Supply Amplifiers
AD8531/AD8532/AD8534
PIN CONFIGURATIONS
5-Lead SC70 and SOT-23
(KS and RT Suffixes)
OUT A 1 ^AD8531 5 V+
V؊ 2
+IN A 3
4 ؊IN A
8-Lead SOIC, TSSOP, and MSOP
(R, RU, and RM Suffixes)
NULL 1 _AD8531 8 NC
–IN A 2
7 V+
+IN A 3
6 OUT A
V– 4
5 NULL
8-Lead SOIC, TSSOP, and MSOP
(R, RU, and RM Suffixes)
OUT A 1
–IN A 2
+IN A 3
V– 4
AD8532 8 _V+
7 OUT B
6 –IN B
5 +IN B
14-Lead SOIC, and TSSOP
(R, and RU Suffixes)
OUT A 1
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
AD8534
14 OUT D
13 –IN D
12 +IN D
11 V–
10 +IN C
9 –IN C
8 OUT C
REV. D
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reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
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© Analog Devices, Inc., 2002