AD8005 270 MHz, 400µA Current Feedback Amplifier

The AD8005 is an ultralow power, high speed amplifier with a wide signal bandwidth of 170 MHz and slew rate of 280 V/µs. This performance is achieved while consuming only 400 µA of quiescent supply current. These features increase the operating time of high speed battery-powered systems without reducing dynamic performance.

The current feedback design results in gain flatness of 0.1 dB to 30 MHz while offering differential gain and phase errors of 0.11% and 0.4°. Harmonic distortion is low over a wide bandwidth with THDs of –63 dBc at 1 MHz and –50 dBc at 10 MHz. Ideal features for a signal conditioning amplifier or buffer to a high speed A-to-D converter in portable video, medical or communication systems.

The AD8005 is characterized for +5 V and ±5 V supplies and will operate over the industrial temperature range of –40°C to +85°C. The amplifier is supplied in 8-pin DIP, 8-pin SOIC & 5-pin SOT-23 packages.

Applications
  • Signal conditioning
  • A/D buffer
  • Power sensitive, high speed systems Battery powered equipment Loop/remote power systems Communication or video test systems Portable medical instruments
Features and Benefits
  • Low Distortion/Noise
    –63 dBc @ 1 MHz, VO = 2 V p-p
    –50 dBc @ 10 MHz, VO = 2 V p-p
    4.0 nV/vHz Input Voltage Noise @ 10 MHz
  • High Speed
    270 MHz, –3 dB Bandwidth (G = +1)
    170 MHz, –3 dB Bandwidth (G = +2)
    280 V/µs Slew Rate (G = +2)
    28 ns Settling Time to 0.1%, 2 V Step (G = +2)
  • Ultralow Power
    400 µA Power Supply Current
    (4 mW on ± VS)
    Specified for Single Supply Operation
  • Good Video Specifications
    (RL = 1 kΩ, G = +2)
    Gain Flatness 0.1 dB to 30 MHz
    0.11% Differential Gain Error
    0.4° Differential Phase Error
  • Amplifiers
    SPICE Models
    Data Sheets
    Documentnote
    AD8005: 270 MHz, 400 µA Current Feedback Amplifier Data Sheet (Rev. B)PDF 183 kB
    Application Notes
    Documentnote
    AN-253: Find Op Amp Noise with SpreadsheetPDF 77 kB
    AN-356: User's Guide to Applying and Measuring Operational Amplifier SpecificationsPDF 538 kB
    AN-257: Careful Design Tames High Speed Op AmpsPDF 611 kB
    AN-692: Universal Precision Op Amp Evaluation Board (Rev. A)PDF 621 kB
    AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0)PDF 5.3 M
    User Guides
    Documentnote
    UG-838: Evaluation Board for Single, High Speed Op Amps Offered in 5-Lead SOT-23 and 6-Lead SOT-23 PackagesPDF 184.4 K
    UG-755: 8-Lead SOIC Amplifier Evaluation Board User GuidePDF 276 K
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD8005ARTZ-R2 Production5 ld SOT-23REEL 250-40 to 85C2.732.73Y
    AD8005ARTZ-REEL7 Production5 ld SOT-23REEL 3000-40 to 85C01.64Y
    AD8005ARZ Production8 ld SOICOTH 98-40 to 85C1.811.64Y
    AD8005ARZ-REEL Production8 ld SOICREEL 2500-40 to 85C01.64Y
    AD8005ARZ-REEL7 Production8 ld SOICREEL 1000-40 to 85C01.64Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    EVAL-HSOPAMP-1CPZEvaluation Board for 8-LD LFCSP18.25Y
    EVAL-HSOPAMP-1KSZEvaluation Bare Board for 5 and 6-lead SC70 Package18.25Y
    EVAL-HSOPAMP-1RJZEvaluation Bare Board for SOT-23 Package18.25Y
    EVAL-HSOPAMP-1RZEvaluation Bare Board for 8-lead SOIC Package18.25Y
    EVAL-HSOPAMP-E-1RZEvaluation Bare Board for 8 Lead SOIC dedicated feedback with epad connection18.25Y
    EVAL-HSOPAMP-N-1RZEvaluation Bare Board for 8 Lead SOIC w/Null or Compensation functionality on Pins 1 and or 818.25Y
    Reference Materials
    AD8005: 270 MHz, 400 µA Current Feedback Amplifier Data Sheet (Rev. B) ad8005
    AD8005 SPICE Macro-Model ad8005
    AN-253: Find Op Amp Noise with Spreadsheet ad8074
    AN-356: User's Guide to Applying and Measuring Operational Amplifier Specifications ad8350
    AN-257: Careful Design Tames High Speed Op Amps ad8074
    AN-356: 用户指南:运算放大器规格参数的应用和测量 (Rev. 0) ad8350
    AN-692: Universal Precision Op Amp Evaluation Board (Rev. A) ad8072
    AN-692: 通用精密运算放大器评估板 (Rev. 0) ad8072
    AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0) ad8350
    UG-838: Evaluation Board for Single, High Speed Op Amps Offered in 5-Lead SOT-23 and 6-Lead SOT-23 Packages ad8055
    UG-755: 8-Lead SOIC Amplifier Evaluation Board User Guide ad9631
    MT-059: 补偿输入电容对电流电压转换器所用电压反馈和电流反馈型运算放大器的影响 ad9631
    MT-057: 高速电流反馈运算放大器 ada4862-3
    MT-051:电流反馈运算放大器噪声考虑因素 ad8072
    MT-034:电流反馈(CFB)运算放大器 ada4862-3
    High Speed Amplifiers Selection Table ad8138