AD8646 24 MHz Rail-to-Rail Dual Op Amp

The AD8646 and the AD8647 are the dual, and the AD8648 is the quad, rail-to-rail, input and output, single-supply amplifiers featuring low offset voltage, wide signal bandwidth, low input voltage, and low current noise. The AD8647 also has a low power shutdown function.

The combination of 24 MHz bandwidth, low offset, low noise, and very low input bias current makes these amplifiers useful in a wide variety of applications. Filters, integrators, photodiode amplifiers, and high impedance sensors all benefit from the combination of performance features. AC applications benefit from the wide bandwidth and low distortion. The AD8646/AD8647/AD8648 offer high output drive capability, which is excellent for audio line drivers and other low impedance applications. The AD8646 and AD8648 are available for automotive applications (see the Ordering Guide).

Applications include portable and low powered instrumentation, audio amplification for portable devices, portable phone headsets, barcode scanners, and multipole filters. The ability to swing rail to rail at both the input and output enables designers to buffer CMOS ADCs, DACs, ASICs, and other wide output swing devices in single-supply systems.

Applications
  • Battery-powered instruments
  • Multipole filters
  • ADC front ends
  • Sensors
  • Barcode scanners
  • ASIC input or output amplifiers
  • Audio amplifiers
  • Photodiode amplifiers
  • Datapath/mux/switch control
Features and Benefits
  • Offset voltage: 2.5 mV maximum
  • Single-supply operation: 2.7 V to 5.5 V
  • Low noise: 8 nV/√Hz
  • Wide bandwidth: 24 MHz
  • Slew rate: 11 V/μs
  • Short-circuit output current: 120 mA
  • Qualified for automotive applications
  • No phase reversal
  • Low input bias current: 1 pA
  • Low supply current per amplifier: 2 mA maximum
  • Unity gain stable
  • Amplifiers
    SPICE Models
    Reference Designs
    Data Sheets
    Documentnote
    AD8646/AD8647/AD8648: 24 MHz Rail-to-Rail Amplifiers with Shutdown Option Data Sheet (Rev. F)PDF 506.67 K
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD8646ARMZ Production8 ld MSOPOTH 50-40 to 125C0.740.61Y
    AD8646ARMZ-REEL Production8 ld MSOPREEL 3000-40 to 125C0.740.61Y
    AD8646ARZ Production8 ld SOICOTH 98-40 to 125C0.740.61Y
    AD8646ARZ-REEL Production8 ld SOICREEL 2500-40 to 125C00.61Y
    AD8646ARZ-REEL7 Production8 ld SOICREEL 1000-40 to 125C00.61Y
    AD8646WARMZ-R7 Production8 ld MSOPREEL 1000-40 to 125C00.76Y
    AD8646WARMZ-RL Production8 ld MSOPREEL 3000-40 to 125C00.76Y
    AD8646WARZ-R7 Production8 ld SOICREEL 1000-40 to 125C00.76Y
    AD8646WARZ-RL Production8 ld SOICREEL 2500-40 to 125C00.76Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    AD-FMCMOTCON2-EBZEvaluation Board999Y
    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
    Reference Materials
    AD8646/AD8647/AD8648: 24 MHz Rail-to-Rail Amplifiers with Shutdown Option Data Sheet (Rev. F) ad8648
    AD8646 SPICE Macro Model ad8646
    CN0185 设计和集成文件 adp3301
    CN-0185:采用隔离式Σ-Δ型调制器、隔离式DC/DC转换器和有源滤波器的新型模拟/模拟隔离器 adp3300
    MS-2400: Key Benefits of Input Overvoltage Protected Op Amps in Systems ada4177-2