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ET9571 - 3-Ch. Diff. Amplifier-comparator

General Description

These devices are specifically designed as receiver circuits for the phototransistor signals available in some optical encoders.

Connect the emitters of the phototransistors to the input pins, with the collectors connected to Vcc.

Key Features

  • Supply Voltage Range 4.5V to 30V Designed for phototransistor inputs Index channel gated by A and B Current sink for LED drive (see.

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Datasheet Details

Part number ET9571
Manufacturer IC Haus
File Size 53.36 KB
Description 3-Ch. Diff. Amplifier-comparator
Datasheet download datasheet ET9571 Datasheet

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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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3 CHANNEL DIFFERENTIAL AMPLIFIER-COMPARATOR (Phototransistor input version of the standard ET9570) ET9571 FEATURES • • • • • • Supply Voltage Range 4.5V to 30V Designed for phototransistor inputs Index channel gated by A and B Current sink for LED drive (see application note APP-D2) Outputs short circuit protected 25mA peak drive current APPLICATIONS • • Optical Encoders Industrial Controls DESCRIPTION These devices are specifically designed as receiver circuits for the phototransistor signals available in some optical encoders. Connect the emitters of the phototransistors to the input pins, with the collectors connected to Vcc. The inputs have 330 ohm resistors to terminate the phototransistors in an emitter follower mode.