AD8042 Dual 160 MHz Rail-to-Rail Amplifier

The AD8042 is a low power voltage feedback, high speed amplifier designed to operate on +3 V, +5 V or ± 5 V supplies. It has true single supply capability with an input voltage range extending 200 mV below the negative rail and within 1 V of the positive rail.

The output voltage swing extends to within 30 mV of each rail, providing the maximum output dynamic range. Additionally, it features gain flatness of 0.1 dB to 14 MHz while offering differential gain and phase error of 0.04% and 0.06° on a single 5 V supply. This makes the AD8042 useful for professional video electronics such as cameras, video switchers or any high speed portable equipment. The AD8042's low distortion and fast settling make it ideal for buffering single-supply, high speed Analog-to-Digital converters (ADCs).

The AD8042 offers low power supply current of 12 mA maximum and can run on a single 3.3 V power supply. These features are ideally suited for portable and battery powered applications where size and power are critical.

The wide bandwidth of 160 MHz along with 200 V/µs of slew rate on a single 5 V supply make the AD8042 useful in many general-purpose, high speed applications where single supplies from +3.3 V to +12 V and dual power supplies of up to ±6 V are needed. The AD8042 is available in 8-lead PDIP and SOIC_N packages.

Applications
  • Video switchers
  • Distribution amplifiers
  • Analog-to-digital drivers
  • Professional cameras
  • CCD Imaging systems
  • Ultrasound equipment (multichannel)
Features and Benefits
  • Single AD8041 and quad AD8044 also available
  • Fully specified at +3 V, +5 V, and ±5 V supplies
  • Output swings to within 30 mV of either rail
  • Input voltage range extends 200 mV below ground
  • High speed and fast settling on 5 V:
    160 MHz –3 dB bandwidth (G = +1)
    200 V/µs slew rate
    39 ns settling time to 0.1%
  • Drives 50 mA 0.5 V from supply rails
  • No phase reversal with inputs 0.5 V beyond supplies
  • Low power of 5.2 mA per amplifier
  • Good video specifications
    (RL = 150 Ω, G = +2)
    Gain flatness of 0.1 dB to 14 MHz
    0.02% differential gain error
    0.04° differential phase error
  • Low distortion
    –64 dBc worst harmonic @ 10 MHz
  • Amplifiers
    Audio & Video Products
    SPICE Models
    Data Sheets
    Documentnote
    AD8042: Dual 160 MHz Rail-to-Rail Amplifier Data Sheet (Rev. E)PDF 425 kB
    Application Notes
    Documentnote
    AN-402: Replacing Output Clamping Op Amps with Input Clamping AmpsPDF 55 kB
    AN-581: Biasing and Decoupling Op Amps in Single Supply Applications (Rev. 0)PDF 166 kB
    AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed SystemsPDF 228 kB
    AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0)PDF 5.3 M
    AN-414: Low Cost, Low Power Devices for HDSL ApplicationsPDF 41 kB
    User Guides
    Documentnote
    UG-128: Universal Evaluation Board for Dual High Speed Op Amps in SOIC PackagesPDF 208 kB
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD8042ACHIPS ProductionCHIPS OR DIEREEL 31525C010.17Y
    AD8042AR Production8 ld SOICOTH 98-40 to 85C3.112.64N
    AD8042AR-REEL Production8 ld SOICREEL 2500-40 to 85C02.64N
    AD8042AR-REEL7 Production8 ld SOICREEL 750-40 to 85C3.112.64N
    AD8042ARZ Production8 ld SOICOTH 98-40 to 85C2.682.28Y
    AD8042ARZ-REEL Production8 ld SOICREEL 2500-40 to 85C02.28Y
    AD8042ARZ-REEL7 Production8 ld SOICREEL 1000-40 to 85C2.682.28Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    EVAL-HSAMP-2CPZ-10Evaluation Bare Board for 10-Lead LFCSP18.25Y
    EVAL-HSAMP-2CPZ-8Evaluation Bare Board for 8-Lead LFCSP18.25Y
    EVAL-HSAMP-2RMZ-10Evaluation Bare Board for 10-lead MSOP Package18.25Y
    EVAL-HSAMP-2RMZ-8Evaluation Bare Board for 8 Lead MSOP18.25Y
    EVAL-HSAMP-2RZ-8Evaluation Bare Board for 8 Lead SOIC18.25Y
    Reference Materials
    AD8042: Dual 160 MHz Rail-to-Rail Amplifier Data Sheet (Rev. E) ad8042
    AD8042 SPICE Macro-Model ad8042
    AN-402: Replacing Output Clamping Op Amps with Input Clamping Amps ad829
    AN-581: Biasing and Decoupling Op Amps in Single Supply Applications (Rev. 0) ad829
    AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed Systems ad829
    AN-402: 以输入箝位放大器取代输出箝位运算放大器 (Rev. 0) ad829
    AN-417: 在低压高速系统中利用快速轨到轨运算放大器减少设计限制 (Rev. 0) ad829
    AN-581: 单电源应用中的偏置和去耦运算放大器 (Rev. 0) ad829
    AN-649: Using the Analog Devices Active Filter Design Tool (Rev. 0) ad8350
    AN-414: Low Cost, Low Power Devices for HDSL Applications ad9221
    UG-128:SOIC封装的双通道高速运算放大器通用评估板 ad8042
    UG-128: Universal Evaluation Board for Dual High Speed Op Amps in SOIC Packages ad8042
    MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps ad829
    MT-032:理想的电压反馈型(VFB)运算放大器 ad829
    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-058: 反馈电容对VFB和CFB运算放大器的影响 ad829
    MT-056: 高速电压反馈运算放大器 ad829
    MT-053:运算放大器失真:HD、THD、THD + N、IMD、SFDR、MTPR ad829
    MT-052:运算放大器噪声指数:不要被误导 ad829
    MT-050: 二阶系统的运算放大器总输出噪声计算 ad9631
    MT-049:单极点系统的运算放大器总输出噪声计算 ad829
    MT-048:运算放大器噪声关系:1/f噪声、均方根(RMS)噪声与等效噪声带宽 ad829
    MT-047:运算放大器噪声 ad829
    MT-033:电压反馈型运算放大器的增益和带宽 ad829
    MT-032: Ideal Voltage Feedback (VFB) Op Amp ad829
    High Speed Amplifiers Selection Table ad8138
    CN-0143:利用运算放大器AD8042构建用于电压输出和电流输出DAC的单端差分转换器 adr444