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ET9570LH PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 ET9570LH
部品説明 3-Ch. Diff. Amplifier-comparator
メーカ IC Haus
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ET9570LH Datasheet, ET9570LH PDF,ピン配置, 機能
3 CHANNEL DIFFERENTIAL
AMPLIFIER-COMPARATOR
(Lower hysteresis version of standard ET9570)
FEATURES
Supply Voltage Range 4.5V to 30V
Operation to 1MHz
Designed for photodiode inputs
Index gated by A and B channels
Current sink for LED drive (see application note
APP-D2)
Outputs short circuit protected
25mA peak drive current
Comparator hysteresis only 1.1 : 1
APPLICATIONS
High Speed Optical Encoders
Industrial Controls
ET9570LH
DESCRIPTION
These devices are specifically designed as receiver circuits for the photodiode signals available in optical encoders.
Connect the anode of the photodiodes to the input pins, with the cathode(s) connected to Vcc for reverse-bias
operation. The input amplifiers have a dynamic range of nearly 1000:1, and allow contrast ratios of encoded signal to
www.cDoamtaSmhoenet4mUo.cdoem signal of as low as 2:1. Differential inputs enhance noise rejection and performance over temperature.
Gating of the Z channel provides synchronization of the reference pulse to the data channel phasing. Hysteresis ratio
of comparators is 1.1:1, instead of the 1.25:1 on the standard device.
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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3-Ch. Diff. Amplifier-comparator

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