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ET9571 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 ET9571
部品説明 3-Ch. Diff. Amplifier-comparator
メーカ IC Haus
ロゴ IC Haus ロゴ 



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ET9571 Datasheet, ET9571 PDF,ピン配置, 機能
3 CHANNEL DIFFERENTIAL
AMPLIFIER-COMPARATOR
(Phototransistor input version of the standard ET9570)
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
ET9571
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. Differential inputs
enhance noise rejection and performance over temperature. Care should be taken to use phototransistors on
www.dDiafftaeSrehenetita4Ul i.ncopmut pairs which have similar values of DC leakage current, as large differences in this charactersitic will
affect waveform symmetry.
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Operating Temperature
Range
Supply Voltage Range
TA
VCC
Min.
-40
4.5
Max.
125
30
Units
°C
V
Ref.
Note 1
ETIC RESERVES THE RIGHT TO MAKE CHANGES AT ANY TIME TO IMPROVE THE DESIGN AND TO SUPPLY THE BEST PRODUCT.
©2000, Rev A1
iC-Haus GmbH
Integrated Circuits
Am Kuemmerling 18, D-55294 Bodenheim
Page 1 of 2
Tel +49-6135-9292-0
Fax +49-6135-9292-192
http://www.ichaus.com

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