AD8674 Precision Low Noise, Low Input Bias Current, Quad Op Amp

Applications

The AD8671/AD8672/AD8674 are very high precision amplifiers featuring very low noise, very low offset voltage and drift, low input bias current, 10 MHz bandwidth, and low power consumption. Outputs are stable with capacitive loads of over 1000 pF. Supply current is less than 3 mA per amplifier at 30 V.

The AD8671/AD8672/AD8674’s combination of ultralow noise, high precision, speed, and stability is unmatched. The MSOP version of the AD8671/AD8672 requires only half the board space of comparable amplifiers.

Applications for these amplifiers include high quality PLL filters, precision filters, medical and analytical instrumentation, precision power supply controls, ATE, data acquisition, and precision controls as well as professional quality audio.

The AD8671/AD8672 are specified over the extended industrial temperature range (−40°C to +125°C), and the AD8674 is specified over the industrial temperature range (−40°C to +85°C).

The AD8671/AD8672 are available in the 8-lead SOIC and 8-lead MSOP packages. The AD8674 is available in 14-lead SOIC and 14-lead TSSOP packages.

Surface-mount devices in MSOP packages are available in tape and reel only.

Features and Benefits
  • Very low noise: 2.8 nV/√Hz, 77 nV p-p
  • Wide Bandwidth: 10MHz
  • Low Input Bias Current: 12 nA max
  • Low Offset Voltage: 75 µV max
  • High open loop gain: 120 dB min
  • Low supply current: 3 mA typ per amplifier
  • Dual supply operation: ±5V to ±15V
  • Unity Gain Stable
  • No Phase Reversal
    • Amplifiers
    SPICE Models
    Data Sheets
    Documentnote
    AD8671/AD8672/AD8674: Precision, Very Low Noise, Low Input Bias Current Operational Amplifiers Data Sheet (Rev. F)PDF 459 kB
    Application Notes
    Documentnote
    AN-358: Noise and Operational Amplifier CircuitsPDF 593 kB
    AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0)PDF 5.3 M
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD8674ARUZ Production14 ld TSSOPOTH 96-40 to 85C3.853.24Y
    AD8674ARUZ-REEL Production14 ld TSSOPREEL 2500-40 to 85C03.24Y
    AD8674ARZ Production14 ld SOICOTH 56-40 to 85C3.853.24Y
    AD8674ARZ-REEL Production14 ld SOICREEL 2500-40 to 85C03.24Y
    AD8674ARZ-REEL7 Production14 ld SOICREEL 1000-40 to 85C03.24Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    EVAL-PRAOPAMP-4RUZQUAD 14-Lead TSSOP Evaluation Board20.19Y
    EVAL-PRAOPAMP-4RZQUAD R-14 lead SOIC Evaluation Board20.19Y
    AD8671/AD8672/AD8674: Precision, Very Low Noise, Low Input Bias Current Operational Amplifiers Data Sheet (Rev. F) ad8671
    AD8674 SPICE Model ad8674
    AN-358: Noise and Operational Amplifier Circuits ad8072
    AN-358: 噪声与运算放大器电路 (Rev. 0) ad8072
    AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0) ad8350
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