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AD7118 - LOGDAC CMOS Logarithmic D/A Converter

General Description

The LOGDAC® AD7118 is a CMOS multiplying D/A converter which attenuates an analog input signal over the range 0 to

85.5 dB in 1.5 dB steps.

The analog output is determined by a six-bit attenuation code applied to the digital inputs.

Key Features

  • Dynamic Range 85.5 dB Resolution 1.5 dB Full ؎25 V Input Range Multiplying DAC Full Military Temperature Range.
  • 55؇ C to +125؇ C Low Distortion Low Power Consumption Latch Proof Operation (Schottky Diodes Not Required) Single 5 V to 15 V Supply.

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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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a FEATURES Dynamic Range 85.5 dB Resolution 1.5 dB Full ؎25 V Input Range Multiplying DAC Full Military Temperature Range –55؇ C to +125؇ C Low Distortion Low Power Consumption Latch Proof Operation (Schottky Diodes Not Required) Single 5 V to 15 V Supply APPLICATIONS Digitally Controlled AGC Systems Audio Attenuators Wide Dynamic Range A/D Converters Sonar Systems Function Generators LOGDAC CMOS Logarithmic D/A Converter AD7118* FUNCTIONAL DIAGRAM PIN CONFIGURATION GENERAL DESCRIPTION The LOGDAC® AD7118 is a CMOS multiplying D/A converter which attenuates an analog input signal over the range 0 to –85.5 dB in 1.5 dB steps. The analog output is determined by a six-bit attenuation code applied to the digital inputs.