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ET7272 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 ET7272
部品説明 QUAD DIFFERENTIAL LINE DRIVER
メーカ ETIC
ロゴ ETIC ロゴ 



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ET7272 Datasheet, ET7272 PDF,ピン配置, 機能
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QUAD DIFFERENTIAL LINE DRIVER
WITH SEPARATE LOGIC BIAS AND DRIVER BIAS
SUPPLIES, AND ENABLE FUNCTION
ET7272
FEATURES
Supply Voltage Range 3.5V to 30V
Operation to 800KHz
CMOS and TTL Compatible Inputs
Separate logic bias and driver supply pins
Optional single supply operation for moderate
power applications
High Impedance Buffered Inputs with Hysteresis
may be driven directly by phototransistors
Tri-State outputs
80mA peak SINK/SOURCE current
Outputs Protected by Thermal Shut-Down
APPLICATIONS
Optical Encoders
Industrial Controls
DESCRIPTION
These line drivers are pin compatible with 26LS31 in applications where pin 4 = 5V and pin 12 = GND. Internal clamp
diodes allow trouble-free operation when driving cable lengths exceeding 100m. Split supplies are provided to
minimize standby power dissipation in high voltage applications. The logic should be powered from a regulated 5V
supply at the VccBias pin. The output stages may then be powered by a separate supply at VccDrivers, up to 30V.
Output voltage swings of 0.3V to VCC-1.9V are typical. The outputs are protected against shorts to ground, shorts to
Vcc and to other outputs, by a two-fold scheme of current limiting and thermal shutdown. This assures highly reliable
operation in harsh environments. Heat-sinking may be accomplished at pin 8 which is directly connected to the ASIC
substrate.
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Operating Temperature
Range
Supply Voltage Range(both)
TA
VCC
Min.
-55
4.5
Max.
115
30
Units
°C
V
Ref.
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 3
Tel +49-6135-9292-0
Fax +49-6135-9292-192
http://www.ichaus.com

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