AD8541:  General-Purpose CMOS Single Rail-to-Rail Amplifier

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 ...More

AD8541:  General-Purpose CMOS Single Rail-to-Rail Amplifier

Product 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 μA per amplifier.

Very low input bias currents enable the AD8541/AD8542/AD8544 to be used for integrators, photodiode amplifiers, piezoelectric sensors, and other applications with high source impedance. The supply current is only 45 μA 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.

Applications

  • ASIC input or output amplifiers
  • Sensor interfaces
  • Piezoelectric transducer amplifiers
  • Medical instrumentations
  • Mobile communications
  • Audio outputs
  • Portable systems

    • Data Sheet, Rev. F, 1/08

    Features

    • Single-supply operation: 2.7 V to 5.5 V
    • Low supply current: 45 μA/amplifier
    • Wide bandwidth: 1 MHz
    • No phase reversal
    • Low input currents: 4 pA
    • Unity gain stable
    • Rail-to-rail input and output

    Diagrams

    AD8541 Diagram
    Pin Configuration Diagram for AD8541

    Specifications

    -3dB Bandwidth 1MHz
    Slew Rate 0.92V/µs
    Input Noise (nV/rtHz) 38nV/rtHz
    Vos 1mV
    Ib 4pA
    Packages SC70,SOIC,SOT
    Settling Time 6µs
    Supply Current (max) 65µA

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    Part# Output Power (W) Speaker Driver Headphone Driver Micophone Driver Product Description Price* (1000-4999)
    AD8541 - - - - Rail-Rail Input/Output, Low Power, Single/Supply, CMOS Amplifier $0.27
    AD8542 - - - - Dual, Rail-Rail Input/Output, Low Power, Single/Supply, CMOS Amplifier $0.38
    AD8544 - - - - Quad, Rail-Rail Input/Output, Low Power, Single/Supply, CMOS Amplifier $0.54
    ADAU1513 23 - - - - $3.15
    ADAU1590 15.5 - - - - $3.49
    ADAU1592 18 - - - - $3.66
    SSM2167 - - - Mono Microphone Driver withe Noise Gate $1.20
    SSM2211 1.5 Mono - - Mono Speaker Driver $0.45
    SSM2250 1.5 Mono Stereo - Mono Speaker and Stereo Headphone Driver $1.00
    SSM2301 1.4 - - - - $0.45
    SSM2302 2 - - - - $0.92
    SSM2304 2 - - - - $0.81
    SSM2305 2.8 - - - - $0.60
    SSM2306 2 - - - - $0.99
    SSM2311 3 - - - - $0.73
    SSM2315 3 Mono - - - $0.82
    SSM2317 3 - - - - $0.91
    SSM2319 3 - - - - $0.90
    SSM2335 3 - - - - $0.63

    * The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
    ** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

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