AD8541 Datasheet, PDF (1/16 Pages) Analog Devices – General Purpose CMOS Rail-to-Rail Amplifiers

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FEATURES
Single-Supply Operation: 2.7 V to 5.5 V
Low Supply Current: 45 ␮A/Amplifier
Wide Bandwidth: 1 MHz
No Phase Reversal
Low Input Currents: 4 pA
Unity Gain Stable
Rail-to-Rail Input and Output
APPLICATIONS
ASIC Input or Output Amplifier
Sensor Interface
Piezo Electric Transducer Amplifier
Medical Instrumentation
Mobile Communication
Audio Output
Portable Systems
GENERAL DESCRIPTION
The AD8541/AD8542/AD8544 are single, dual, and quad rail-
to-rail input and output single-supply amplifiers featuring very
low supply current and 1 MHz bandwidth. All are guaranteed to
operate from a 2.7 V single supply as well as a 5 V supply. These
parts provide 1 MHz bandwidth at a low current consumption
of 45 mA per amplifier.
Very low input bias currents enable the AD8541/AD8542/AD8544
to be used for integrators, photodiode amplifiers, piezo electric
sensors, and other applications with high source impedance. Sup-
ply current is only 45 mA per amplifier, ideal for battery operation.
Rail-to-rail inputs and outputs are useful to designers buffering
ASICs in single-supply systems. The AD8541/AD8542/AD8544
are optimized to maintain high gains at lower supply voltages,
making them useful for active filters and gain stages.
The AD8541/AD8542/AD8544 are specified over the extended
industrial temperature range (–40∞C to +125∞C). The AD8541
is available in 8-lead SOIC, 5-lead SC70, and 5-lead SOT-23
packages. The AD8542 is available in 8-lead SOIC, 8-lead
MSOP, and 8-lead TSSOP surface-mount packages. The AD8544
is available in 14-lead narrow SOIC and 14-lead TSSOP surface-
mount packages. All MSOP, SC70, and SOT versions are available
in tape and reel only.
General-Purpose CMOS
Rail-to-Rail Amplifiers
AD8541/AD8542/AD8544
PIN CONFIGURATIONS
5-Lead SC70 and SOT-23
(KS and RT Suffixes)
OUT A 1 ^AD8541 5 V+
V؊ 2
+IN A ₃
4 ؊IN A
8-Lead SOIC
(R Suffix)
NC 1 _AD8541 8 NC
–IN A 2
7 V+
+IN A 3
6 OUT A
V– 4
5 NC
NC = NO CONNECT
8-Lead SOIC, MSOP, and TSSOP
(R, RM, and RU Suffixes)
OUT A 1
–IN A 2
+IN A 3
V– 4
AD8542 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
AD8544
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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