PRODUCT DESCRIPTION
The AD820 is a precision, low power FET input op amp that can operate from a single supply of +3.0 V to 36 V, or dual supplies of ±1.5 V to ±18 V. It has true single supply capability with an input voltage range extending below the negative rail, allowing the AD820 to accommodate input signals below ground in the single supply mode. Output voltage swing extends to within 10 mV of each rail providing the maximum output dynamic range.
   
FEATURES
    True Single Supply Operation
        Output Swings Rail-to-Rail
        Input Voltage Range Extends Below Ground
        Single Supply Capability from +3 V to +36 V
        Dual Supply Capability from ±1.5 V to ±18 V
    Excellent Load Drive
        Capacitive Load Drive Up to 350 pF
        Minimum Output Current of 15 mA
    Excellent AC Performance for Low Power
        800 μA Max Quiescent Current
        Unity Gain Bandwidth: 1.8 MHz
        Slew Rate of 3.0 V/μs
    Excellent DC Performance
        800 μV Max Input Offset Voltage
        1 μV/°C Typ Offset Voltage Drift
        25 pA Max Input Bias Current
    Low Noise
        13 nV/√Hz @ 10 kHz
   
APPLICATIONS
    Battery Powered Precision Instrumentation
    Photodiode Preamps
    Active Filters
    12- to 14-Bit Data Acquisition Systems
    Medical Instrumentation
    Low Power References and Regulators