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ICL8048 - Log Amplifier

General Description

The ICL8048 relies for its operation on the well known exponential relationship between the collector current and the base emitter voltage of a transistor: qV B E I C = I S exp  ---------------

1  kT  (EQ.

Key Features

  • Full Scale Accuracy.
  • 0.5%.
  • Temperature Compensated Operation.
  • . 0oC to 70oC.
  • Scale Factor, Adjustable.
  • . . 1V/Decade.
  • Dynamic Current Range.
  • . 120dB.
  • Dynamic Voltage Range.
  • . . 60dB.
  • Dual JFET Input Op Amps PKG. NO. Ordering Information PART NUMBER ICL8048BCJE ERROR.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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ICL8048 Data Sheet August 1999 File Number 2865.2 Log Amplifier The ICL8048 is a monolithic logarithmic amplifier capable of handling six decades of current input, or three decades of voltage input. It is fully temperature compensated and is nominally designed to provide 1V of output for each decade change of input. For increased flexibility, the scale factor, reference current and offset voltage are externally adjustable. Features • Full Scale Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . 0.5% • Temperature Compensated Operation . . . . . . 0oC to 70oC • Scale Factor, Adjustable. . . . . . . . . . . . . . . . . 1V/Decade • Dynamic Current Range. . . . . . . . . . . . . . . . . . . . . 120dB • Dynamic Voltage Range . . . . . . . . . . . . . . . . . . . . . .