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AD8572:  Dual, Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier

This family of amplifiers has ultralow offset, drift, and bias current. The AD8571, AD8572, and AD8574 are single, dual, and quad amplifiers, respectively, featuring rail-to-rail input and output swings. All are guaranteed to operate from 2.7 V to 5 V single supply.

The AD857x family provides benefits previously found only in expensive auto-zeroing or chopper-stabilized amplifiers. Using ...More

AD8572:  Dual, Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier

Product Description

This family of amplifiers has ultralow offset, drift, and bias current. The AD8571, AD8572, and AD8574 are single, dual, and quad amplifiers, respectively, featuring rail-to-rail input and output swings. All are guaranteed to operate from 2.7 V to 5 V single supply.

The AD857x family provides benefits previously found only in expensive auto-zeroing or chopper-stabilized amplifiers. Using Analog Devices, Inc., topology, these zero-drift amplifiers combine low cost with high accuracy. (No external capacitors are required.) Using a patented spread-spectrum, auto-zero technique, the AD857x family eliminates the intermodulation effects from interaction of the chopping function with the signal frequency in ac applications.

With an offset voltage of only 1 μV and drift of 0.005 μV/°C, the AD857x family is perfectly suited for applications where error sources cannot be tolerated. Position and pressure sensors, medical equipment, and strain gage amplifiers benefit greatly from nearly zero drift over their operating temperature range. Many more systems require the rail-to-rail input and output swings provided by the AD857x family.

Applications

  • Temperature sensors
  • Pressure sensors
  • Precision current sensing
  • Strain gage amplifiers
  • Medical instrumentation
  • Thermocouple amplifiers

    • Data Sheet, Rev. D, 6/08

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    • Low offset voltage: 1 μV
    • Input offset drift: 0.005 μV/°C
    • Rail-to-rail input and output swing
    • 5 V/2.7 V single-supply operation
    • High gain: 145 dB typical
    • CMRR: 140 dB typical
    • PSRR: 130 dB typical
    • See Data Sheet for Additional Information
    • Iq per Amplifier: 975µA
    • # OpAmps per Pkg: 2
    • Operating Temp Range: -40 to +125
    • Packages: SOIC,SOP
    • -3dB Bandwidth: 1.5MHz
    • Slew Rate: 400mV/µs
    • Vos: 1µV
    • Ib: 10pA
    • Input Noise (nV/rtHz): 51nV/rtHz
    • Vcc-Vee Supply (V): 2.7 to 6

    Pin Configuration Diagram for AD8572

    Similar Products

    arrow View Full Interactive Product Selection Table
    Part# Small Signal Bandwidth Slew Rate Vos Ib V Noise Density Amplifiers Per Package Widest Temp Range (°C)
    AD8572 1.5MHz 400mV/µs 1µV 10pA 51nV/rtHz 2 -40 to +125
    AD8552 1.5MHz 400mV/µs 1µV 10pA 42nV/rtHz 2 -40 to +125
    AD8551 1.5MHz 400mV/µs 1µV 10pA 42nV/rtHz 1 -40 to +125
    AD8574 1.5MHz 400mV/µs 1µV 10pA 51nV/rtHz 4 -40 to +125
    AD8571 1.5MHz 400mV/µs 1µV 10pA 51nV/rtHz 1 -40 to +125
    AD8554 1.5MHz 400mV/µs 1µV 10pA 42nV/rtHz 4 -40 to +125
    AD8629 2.5MHz 1V/µs 1µV 30pA 22nV/rtHz 2 -40 to +125
    AD8642 3.5MHz 3V/µs 50µV 250fA 27.5nV/rtHz 2 -40 to +125
    ADA4000-2 5MHz 20V/µs 200µV 5pA 16nV/rtHz 2 -40 to +125
    AD8606 10MHz 5V/µs 20µV 200fA 6.5nV/rtHz 2 -40 to +125
    ADA4691-2 3.6MHz 1.3V/µs 500µV 500fA 16nV/rtHz 2 -40 to +125
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    Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

    Temperature Range
    This is the acceptable operating range of the device. The various ranges specified are as follows:
    • Commercial: 0 to +70 degrees Celsius
    • Military : -55 to +125 degrees Celsius
    • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
    • 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.