ADA4691-2 Low Power, Wideband, Low Noise, Rail-to-Rail Output, Dual Op Amp

The ADA4691-2 and ADA4692-2 are dual, rail-to-rail output, single-supply amplifiers featuring low power, wide bandwidth, and low noise. The ADA4691-2 has two independent shutdown pins, allowing further reduction in supply current. These amplifiers are ideal for a wide variety of applications. Audio preamps, filters, IR/photodiode amplifiers, charge amps, and high impedance sensors all benefit from this combination of performance features.

Applications for these amplifiers include consumer audio personal players with low noise and low distortion that provide enough gain and slew rate response over the audio band at low power. Industrial applications with high impedance sensors, such as pyroelectric sensors and other IR sensors, benefit from the high impedance input, low offset drift, and enough bandwidth and response for low gain applications.

The ADA4691-2 and ADA4692-2 are specified over the extended industrial temperature range (−40°C to +125°C). The ADA4691-2 is available in a 10-lead LFCSP package, and the ADA4692-2 is available in an 8-lead SOIC package.

Applications
  • Portable audio: MP3, PDA, smart phone, notebook
  • Portable instrumentation
  • Portable medical devices
  • Photodiode amplifiers
  • Sensor amplifiers
  • Low-side current sense
  • ADC drivers
  • Active filters
  • Sample-and-hold
  • Automotive sensors
Features and Benefits
  • Low power: 180µA Typical
  • Low distortion: 0.003% THD + N
  • Low noise: 16 nV/√Hz typical
  • 3.6 MHz bandwidth
  • Available in very small 2 mm x 2 mm LFCSP packages
  • Offset voltage: 500 μV typical
  • Low offset voltage drift: 4 μV/°C maximum
  • Very low input bias currents: 0.5 pA typical
  • 2.7 V to 5 V single supply or ±1.35 V to ±2.5 V dual supply
  • Amplifiers
    SPICE Models
    Data Sheets
    Documentnote
    Low Power, 3.6 MHz, Low Noise, Rail-to-Rail Output, Operational Amplifiers (Rev. D)PDF 699 kB
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    ADA4691-2ACBZ-R7 Production9 ball WLCSP (1.21x1.22)REEL 3000-40 to 125C00.57Y
    ADA4691-2ACBZ-RL Last Time Buy9 ball WLCSP (1.21x1.22)REEL 10000-40 to 125C00.57Y
    ADA4691-2ACPZ-R7 Production10 ld LFCSP (2x2mm)REEL 3000-40 to 125C00.57Y
    ADA4691-2ACPZ-RL Last Time Buy10 ld LFCSP (2x2mm)REEL 10000-40 to 125C00.57Y
    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
    Low Power, 3.6 MHz, Low Noise, Rail-to-Rail Output, Operational Amplifiers (Rev. D) ada4692-2
    低功耗、3.6 MHz、低噪声、轨到轨输出运算放大器 (Rev. D) ada4692-2
    ADA4691 SPICE Macro Model ada4691-2