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ADA4091-4:  QUAD, PRECISION, MICROPOWER, OVP, RAIL-TO-RAIL INPUT/OUTPUT OPERATIONAL AMPLIFIER

The ADA4091-2 dual and ADA4091-4 quad are micropower, single-supply, 1.2 MHz bandwidth amplifiers featuring rail-to-rail inputs and outputs. They are guaranteed to operate from a +3 V to +30 V single supply as well as from ±1.5 V to ±15 V dual supplies.

The ADA4091 family features a unique input stage that allows the input voltage to exceed either supply safely without any phase reversal or ...More

ADA4091-4:  QUAD, PRECISION, MICROPOWER, OVP, RAIL-TO-RAIL INPUT/OUTPUT OPERATIONAL AMPLIFIER

Product Description

The ADA4091-2 dual and ADA4091-4 quad are micropower, single-supply, 1.2 MHz bandwidth amplifiers featuring rail-to-rail inputs and outputs. They are guaranteed to operate from a +3 V to +30 V single supply as well as from ±1.5 V to ±15 V dual supplies.

The ADA4091 family features a unique input stage that allows the input voltage to exceed either supply safely without any phase reversal or latch-up; this is called overvoltage protection, or OVP. The output voltage swings to within 10 mV of the supplies.

Applications for these amplifiers include portable telecom-munications equipment, power supply control and protection, and interface for transducers with wide output ranges. Sensors requiring a rail-to-rail input amplifier include Hall effect, piezo-electric, and resistive transducers.

The ability to swing rail-to-rail at both the input and output enables designers, for example, to build multistage filters in single-supply systems and to maintain high signal-to-noise ratios.

The ADA4091 family is specified over the extended industrial temperature range of −40°C to +125°C. The ADA4091 family is part of the growing selection of 36 V, low power op amps from Analog Devices, Inc., (see Table 1).

The ADA4091-2 is available in an 8-lead plastic SOIC. The ADA4091-4 is available in a 14–lead TSSOP surface-mount package.

APPLICATIONS
  • Industrial process control
  • Battery-powered instrumentation
  • Power supply control and protection
  • Telecommunications
  • Remote sensors
  • Low voltage strain gage amplifiers
  • DAC output amplifiers

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    TECHNICAL DOCUMENTATION

    • Single-supply operation: 3 V to 36 V
    • Wide input voltage range
    • Rail-to-rail output swing
    • Low supply current: 250 μA/amplifier
    • Wide bandwidth: 1.2 MHz
    • Slew rate: 0.46 V/μs
    • Low offset voltage: 250 μV maximum
    • No phase reversal
    • Overvoltage protection (OVP)
        25 V above/below supply rails at ±5 V
        12 V above/below supply rails at ±15 V
    • -3dB Bandwidth: 1.27MHz
    • Slew Rate: 0.46V/µs
    • Vos: 35µV
    • Ib: 50nA
    • Input Noise (nV/rtHz): 25nV/rtHz
    • Vcc-Vee Supply (V): 2.7 to 30
    • Iq per Amplifier: 200µA
    • # OpAmps per Pkg: 4
    • Operating Temp Range: -40 to +125
    • Packages: CSP,SOP

    ADA4091-4 Pin Diagram

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    Pricing, Packaging & Availability

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    Temperature Range
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    • Commercial: 0 to +70 degrees Celsius
    • Military : -55 to +125 degrees Celsius
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    • Automotive: -40 to +125 degrees Celsius
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    *The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
    **Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.