ET9561 - ETIC

ET9561 3 CHANNEL DIFFERENTIAL AMPLIFIER-COMPARATOR

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. Differential inputs enhance nois.

Features

• Supply Voltage Range 4.5V to 30V
• Designed for phototransistor inputs
• Ungated index channel
• Current sink for LED drive (see application note APP-D2)
• Outputs short circuit protected
• 25mA peak drive current APPLICATIONS
• Optical Encoders
• Industrial Controls ET9561 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 emit.