AD8682 Dual Low Power, High Speed JFET Operational Amplifier

Applications

The AD8682 and AD8684 are dual and quad low power, precision (1 mV) JFET amplifiers featuring excellent speed at low supply currents. The slew rate is typically 9 V/μs with a supply current under 250 μA per amplifier. These unity-gain stable amplifiers have a typical gain bandwidth of 3.5 MHz. The JFET input stage ensures bias current is typically a few picoamps and below 125 pA maximum over the full temperature operating range.

The devices are ideal for portable, low power applications, especially with high source impedance. The devices are unity gain stable and can drive higher capacity loads (G = 1, noninverting), as an example of their excellent dynamic response over a wide range of conditions, delivering dc precision performance at low quiescent currents.

Features and Benefits
  • Low supply current: 250 μA/amp maximum
  • High slew rate: 9 V/μs
  • Bandwidth: 3.5 MHz typical
  • Low offset voltage: 1 mV maximum @ 25°C
  • Low input bias current: 20 pA maximum @ 25°C
  • CMRR: 90 dB typical
  • Fast settling time
  • Unity gain stable
  • Amplifiers
    Data Sheets
    Documentnote
    AD8682/AD8684: Dual/Quad Low Power, High Speed JFET Operational Amplifiers Data Sheet (Rev. B)PDF 364 kB
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD8682ARMZ Production8 ld MSOPOTH 50-40 to 85C2.091.66Y
    AD8682ARMZ-REEL Production8 ld MSOPREEL 3000-40 to 85C2.091.66Y
    AD8682ARZ Production8 ld SOICOTH 98-40 to 85C2.091.66Y
    AD8682ARZ-REEL Production8 ld SOICREEL 2500-40 to 85C01.66Y
    AD8682ARZ-REEL7 Production8 ld SOICREEL 1000-40 to 85C01.66Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    EVAL-PRAOPAMP-2CPZDual CP-8 lead LFCSP Evaluation Board20.19Y
    EVAL-PRAOPAMP-2RMZDual RM-8 lead MSOP Evaluation Board20.19Y
    EVAL-PRAOPAMP-2RZDual R-8 lead SOIC Evaluation Board20.19Y
    AD8682/AD8684: Dual/Quad Low Power, High Speed JFET Operational Amplifiers Data Sheet (Rev. B) ad8682