GENERAL DESCRIPTION

The AD8057 (single) and AD8058 (dual) are very high performance amplifiers with a very low cost. The balance between cost and performance make them ideal for many applications. The AD8057 and AD8058 reduce the need to qualify a variety of specialty amplifiers. The AD8057 and AD8058 are voltage feedback amplifiers with the bandwidth and slew rate normally found in current feedback amplifiers. The AD8057 and AD8058 are low power amplifiers having low quiescent current and a wide supply range from 3 V to 12 V. They have noise and distortion performance required for high end video systems as well as dc performance parameters rarely found in high speed amplifiers.

FEATURES

  Low cost single (AD8057) and dual (AD8058)

  High speed

     325 MHz, −3 dB bandwidth (G = +1)

     1000 V/μs slew rate

     Gain flatness: 0.1 dB to 28 MHz

  Low noise

     7 nV/√Hz

  Low power

     5.4 mA/amplifier typical supply current @ 5 V

  Low distortion

     −85 dBc @ 5 MHz, RL = 1 kΩ

  Wide supply range from 3 V to 12 V

  Small packaging

     AD8057 is available in an 8-lead SOIC and 5-lead SOT-23

     AD8058 is available in an 8-lead SOIC and an 8-lead MSOP

  

APPLICATIONS

  Imaging

  DVD/CD

  Photodiode preamp

  Analog-to-digital driver

  Professional cameras filters