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LT1166 - Power Output Stage Automatic Bias System

General Description

The LT®1166 is a bias generating system for controlling class AB output current in high powered amplifiers.

When connected with external transistors, the circuit becomes a unity-gain voltage follower.

Key Features

  • nn Set Class AB Bias Currents nn Eliminates Adjustments nn Eliminates Thermal Runaway of IQ nn Corrects for Device Mismatch nn Simplifies Heat Sinking nn Programmable Current Limit nn May Be Paralleled for Higher Current nn Small SO-8 or PDIP Package.

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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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LT1166 Power Output Stage Automatic Bias System FEATURES nn Set Class AB Bias Currents nn Eliminates Adjustments nn Eliminates Thermal Runaway of IQ nn Corrects for Device Mismatch nn Simplifies Heat Sinking nn Programmable Current Limit nn May Be Paralleled for Higher Current nn Small SO-8 or PDIP Package APPLICATIONS nn Biasing Power MOSFETs nn High Voltage Amplifiers nn Shaker Table Amplifiers nn Audio Power Amplifiers DESCRIPTION The LT®1166 is a bias generating system for controlling class AB output current in high powered amplifiers. When connected with external transistors, the circuit becomes a unity-gain voltage follower. The LT1166 is ideally suited for driving power MOSFET devices because it eliminates all quiescent current adjustments and critical transistor matching.