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 ...More

AD8042:  Dual 160 MHz Rail-to-Rail Amplifier

Product Description

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

    • 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

    Diagrams

    AD8042 Diagram
    Pin Configuration Diagram for AD8042

    Specifications

    V or I Feedback Voltage
    Min Stable Acl 1V/V
    Packages DIP,SOIC
    Rail-Rail Out Yes
    Slew Rate 225V/µs
    -3dB Bandwidth 170MHz
    Supply Current (max) 14mA
    THD (-dB) 73dB
    Type BiPolar,Video
    Vcc-Vee 3V to 12V
    Input Noise (nV/rtHz) 15nV/rtHz

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    Part# -3dB Bandwidth Slew Rate Min Stable Acl Rail-Rail Out THD (-dB) Input Noise (nV/rtHz) Vcc-Vee Supply Current (max) Features Packages Price* (1000-4999)
    AD8051 110MHz 170V/µs 1V/V Yes 68 16nV/rtHz 3V to 12V 5.5 Rail-to-Rail, Single Supply SOIC, SOT $0.86
    AD8052 110MHz 170V/µs 1V/V Yes 68 16nV/rtHz 3V to 12V 11 Rail-to-Rail, Single Supply SOIC, SOP $1.62
    AD8091 110MHz 170V/µs 1V/V Yes 71 16nV/rtHz 3V to 12V 5.5 Rail-to-Rail, Single Supply SOIC, SOT $0.70
    AD8092 110MHz 170V/µs 1V/V Yes 71 16nV/rtHz 3V to 12V 11 Rail-to-Rail, Single Supply SOIC, SOP $0.90
    AD829 120MHz 230V/µs 1V/V No n/a 1.7nV/rtHz 9V to 36V 6.5 Comp Pin, Null DIP, LCC, SOIC $2.52
    ADA4851-4 130MHz 375V/µs 1V/V Yes 83 10nV/rtHz 2.7V to 12V 12.8 Rail-to-Rail, Single Supply SOP $1.10
    ADA4851-2 130MHz 375V/µs 1V/V Yes 83 10nV/rtHz 2.7V to 12V 6.4 Rail-to-Rail, Single Supply SOP $0.70
    AD8054 150MHz 145V/µs 1V/V Yes 68 16nV/rtHz 3V to 12V 13.6 Single Supply SOIC, SOP $2.88
    AD8044 160MHz 190V/µs 1V/V Yes 75 16nV/rtHz 3V to 12V 13.6 Rail-to-Rail, Single Supply DIP, SOIC $4.00
    AD8041 170MHz 170V/µs 1V/V Yes 72 16nV/rtHz 3V to 12V 6.5 Disable, Power Down, Rail-to-Rail, Single Supply DIP, SOIC $1.95
    AD8042 170MHz 225V/µs 1V/V Yes 73 15nV/rtHz 3V to 12V 14 Rail-to-Rail, Single Supply DIP, SOIC $2.05
    ADA4850-1 175MHz 220V/µs 1V/V Yes 81 10nV/rtHz