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　　General Purpose CMOS
　　Rail-to-Rail Amplifiers
　　PIN CONFIGURATIONSFEATURES
　　Single Supply Operation: +2.7 V to +5.5 V
　　Low Supply Current: 45 H9262A/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 low current consump-
　　tion of 45 ?A 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. Supply
　　current is only 45 A 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 (–40°C to +125°C) temperature range. The AD8541
　　is available in 8-lead SO and 5-lead SOT-23 packages. The
　　AD8542 is available in 8-lead SO, 8-lead MSOP, and 8-lead
　　TSSOP surface mount packages. The AD8544 is available in
　　14-lead narrow SO-14 and 14-lead TSSOP surface mount pack-
　　ages. All TSSOP, MSOP, and SOT versions are available in tape
　　and reel only.
　　SO-8 (R) SOT-23-5 (RT)
　　SO-8 (R), RM-8, and RU-8 SO-14 (R) and RU-14

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