AD8500:  Micropower Precision CMOS Operational Amplifier

The AD8500 is a low power, precision CMOS op amp featuring a maximum supply current of 1 μA. The AD8500 has a maximum offset voltage of 1 mV and a typical input bias current of 1 pA, and it operates ...More

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AD8500:  Micropower Precision CMOS Operational Amplifier

Product Description

The AD8500 is a low power, precision CMOS op amp featuring a maximum supply current of 1 μA. The AD8500 has a maximum offset voltage of 1 mV and a typical input bias current of 1 pA, and it operates rail-to-rail on both the input and output. The AD8500 can operate from a single-supply voltage of +1.8 V to +5.5 V or a dual-supply voltage of ±0.9 V to ±2.75 V.

With its low power consumption, low input bias current, and rail-to-rail input and output, the AD8500 is ideally suited for a variety of battery-powered portable applications. Potential applications include ECGs, pulse monitors, glucose meters, smoke and fire detectors, vibration monitors, and backup battery sensors.

The ability to swing rail-to-rail at both the input and output helps maximize dynamic range and signal-to-noise ratio in systems that operate at very low voltages. The low offset voltage allows the AD8500 to be used in systems with high gain without having excessively large output offset errors, and it provides high accuracy without the need for system calibration.

The AD8500 is fully specified over the industrial temperature range (−40°C to +85°C) and is operational over the extended industrial temperature range (−40°C to +125°C). It is available in a 5-lead, SC70 surface-mount package.


Applications
  • Portable Equipment
  • Remote Sensors
  • Low Power Filters
  • Threshold Detectors
  • Current Sensing

    • Features

    • Supply Current: 1 μA Maximum
    • Offset Voltage: 1 mV Maximum
    • Single-supply or Dual-supply Operation
    • Rail-to-rail Input and Output
    • No Phase Reversal
    • Unity Gain Stable

    Diagrams

    AD8500 Diagram
    Pin Configuration Diagram for AD8500

    Specifications

    -3dB Bandwidth 7kHz
    Slew Rate 0.0040V/µs
    Vos 235µV
    Ib 1pA
    Input Noise (nV/rtHz) 190nV/rtHz
    Vcc-Vee Supply (V) 1.8 to 5.5
    Iq per Amplifier 1µA
    # OpAmps per Pkg 1
    Operating Temp Range -40 to +125
    Packages SC70

    Explore Other Products

    Part# Small Signal Bandwidth Slew Rate Vos Ib V Noise Density Amplifiers Per Package Widest Temp Range (°C)
    AD8500 7KHz 4mV/µs 235µV 1pA 190nV/rtHz 1 -40 to +125
    AD8603 400KHz 100mV/µs 12µV 200fA 22nV/rtHz 1 -40 to +125
    AD8663 540KHz 300mV/µs 30µV 300fA 21nV/rtHz 1 -40 to +125
    AD8638 1.5MHz 2V/µs 3µV 1pA 59nV/rtHz 1 -40 to +125
    AD8641 3.5MHz 3V/µs 50µV 250fA 27.5nV/rtHz 1 -40 to +125
    AD8661 4MHz 3.5V/µs 30µV 300fA 12nV/rtHz 1 -40 to +125
    AD8605 10MHz 5V/µs 20µV 200fA 6.5nV/rtHz 1 -40 to +125
    AD8615 23MHz 12V/µs 80µV 200fA 7nV/rtHz 1 -40 to +125
    AD8651 50MHz 41V/µs 100µV 1pA 4.5nV/rtHz 1 -40 to +125
    OP193 35KHz 15mV/µs 150µV 20nA 65nV/rtHz 1 -40 to +125
    AD8607 400KHz 100mV/µs 12µV 200fA 22nV/rtHz 2 -40 to +125
    Pricing, Packaging & Availability

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    Package Description
    The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

    For detailed drawings and chemical composition please consult our  Package Site

    Pin Count
    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
    Price
    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.

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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.

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