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ETIC

ET7273C Datasheet Preview

ET7273C Datasheet

QUAD DIFFERENTIAL LINE DRIVER IC

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QUAD DIFFERENTIAL LINE DRIVER IC
WITH OPEN-COLLECTOR OUTPUTS AND ENABLE
FUNCTION
ET7273C
FEATURES
Supply Voltage Range 3.5V to 30V
Operation to 800KHz
CMOS and TTL Compatible Inputs
Outputs RS-422A Compatible
High Impedance Buffered Inputs with
Hysteresis
NPN Open-Collector outputs
80mA peak SINK current
Outputs Protected by Thermal Shut-Down
ESD protection to 1KV, HBM
MSL level 2
APPLICATIONS
Optical Encoders
Industrial Controls
DESCRIPTION
These line drivers are similar in function to the ET7272, only in an open-collector format. The VCC pin powers the
internal logic only. Output voltage is dependent on the customer supplied voltage, up to a maximum of 30V. There
is essentially no difference in output swing or performance with VCC (LOGIC) values from 3.5V-30V. Internal clamp
diodes allow trouble-free operation when driving cable lengths exceeding 100 meters. The outputs are protected
by initiating shutdown when junciton temperatures exceed safe limits. This feature assures highly reliable
operation in harsh environments. Heat sinking is aided by having pin 8 directly connected to the ASIC substrate
inside the package. The revC version reduced the high level enable current.
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Operating Temperature Range TA
Supply Voltage Range
VCC
Min.
-55
3.5
Max.
115
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.
East Texas Integrated Circuits USA 275 W. Campbell Road Suite 310 Richardson, Texas 75080 Tel (972) 234-5656 Fax (972) 234-5657
Visit our website at www.etic-avago.com, or send us email at sales@etic-avago.com.
Page 1 of 4




ETIC

ET7273C Datasheet Preview

ET7273C Datasheet

QUAD DIFFERENTIAL LINE DRIVER IC

No Preview Available !

ELECTRICAL CHARACTERISTICS
Unless otherwise specified, TA = 25°C and EN- <0.8V.
Parameters
Overtemp Operate Point (junction)
Overtemp Release Point (junction)
Vcc Voltage Range
Supply Current Vcc1
Supply Current Vcc2
Supply Current Vcc3
Supply Current Vcc4
Enable Input Threshold
Enable Low Level Input Current
Enable High Level Input Current
High Impedance Output Leakage
Input Positive-Going Threshold
Input Negative-Going Threshold
Input Hysteresis
Low Level Input Current
High Level Input Current
Low Level Output1
Low Level Output2
High Level Output Current1
High Level Output Current2
Symbol
TJOP
TJRP
Vcc
Icc1
ICC2
Icc3
ICC4
VTHE
IILE
IIHE
IOZ
VT+
VT-
VH
IIL
IIH
VOL1
VOL2
IOH1
IOH2
Min.
3.5
0.8
-10
-
-4.0
1.05
0.75
-
-
-
Typ.
172
136
5
11.9
2.5
12.1
2.6
1.5
0
108
0.0
1.25
0.95
0.3
-0.1
0
375
370
0
0
Max.
30
16.0
3.4
18.5
3.5
2
10
150
4.0
1.45
1.15
-
-4.0
4.0
500
500
10
10
Units
°C
°C
V
mA
mA
mA
mA
V
µA
µA
µA
V
V
V
µA
µA
mV
mV
µA
µA
Test Conditions
Note 1
Note 1
Vcc = 5V, EN- >2V
Vcc = 30V
Vcc = 30V, EN- > 2V
VIN = 0V, Vcc = 5V
VIN = 5V, Vcc = 5V
Vcc = 5V, EN- > 2V,
Output at 15V
VIN = 0V, Vcc = 5V
VIN = 5V, Vcc = 5V
IOL = 20mA, Vcc = 5V,
VOC = 30V
IOL = 20mA, Vcc =30V,
VOC = 30V
Vcc = 5V, VOC = 30V
Vcc = 30V, VOC = 30V
PIN NUMBERS
1, 7, 9, 15
2, 6, 10, 14
3, 5, 11, 13
4
8
12
16
PIN FUNCTION TABLE
PIN NAMES
A IN, B IN, C IN, D IN
A+, B+, C+, D+
A-, B-, C-, D-
VCC
GND
EN-
NC
FUNCTION
LOGIC LEVEL INPUTS
TRUE OUTPUTS
COMPLEMENT OUTPUTS
POWER
RETURN
ENABLE, ACTIVE LOW
no connection
ETIC RESERVES THE RIGHT TO MAKE CHANGES AT ANY TIME TO IMPROVE THE DESIGN AND TO SUPPLY THE BEST PRODUCT.
East Texas Integrated Circuits USA 275 W. Campbell Road Suite 310 Richardson, Texas 75080 Tel (972) 234-5656 Fax (972) 234-5657
Visit our website at www.etic-avago.com, or send us email at sales@etic-avago.com.
Page 2 of 4


Part Number ET7273C
Description QUAD DIFFERENTIAL LINE DRIVER IC
Maker ETIC
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