SN55107A_08 Datasheet, PDF (1/30 Pages) Texas Instruments – DUAL LINE RECEIVERS

SN55107A, SN75107A, SN75107B, SN75108A
DUAL LINE RECEIVERS
D High Speed
D Standard Supply Voltage
D Dual Channels
D High Common-Mode Rejection Ratio
D High Input Impedance
D High Input Sensitivity
D Differential Common-Mode Input Voltage
Range of ± 3 V
D Strobe Inputs for Receiver Selection
D Gate Inputs for Logic Versatility
D TTL Drive Capability
D High dc Noise Margin
D Totem-Pole Outputs
D B Version Has Diode-Protected Input for
Power-Off Condition
SLLS069D – JANUARY 1977 – REVISED APRIL 1998
SN55107A . . . J OR W PACKAGE
SN75107A, SN75107B, SN75108A . . . D OR N PACKAGE
(TOP VIEW)
1A 1
1B 2
NC 3
1Y 4
1G 5
S6
GND 7
14 V_{CC +}
13 V_{CC –}
12 2A
11 2B
10 NC
9 2Y
8 2G
SN55107A . . . FK PACKAGE
(TOP VIEW)
description
These circuits are TTL-compatible, high-speed
line receivers. Each is a monolithic dual circuit
featuring two independent channels. They are
designed for general use, as well as for such
specific applications as data comparators and
balanced, unbalanced, and party-line transmis-
sion systems. These devices are unilaterally
interchangeable with and are replacements for
the SN55107, SN75107, and SN75108, but offer
diode-clamped strobe inputs to simplify circuit
design.
NC
3 2 1 20 19
4
18
2A
NC ₅
17 ^NC
1Y ₆
16 2B
NC 7
15 NC
1G 8
14 NC
9 10 11 12 13
NC – No internal connection
The essential difference between the A and B versions can be seen in the schematics. Input-protection diodes
are in series with the collectors of the differential-input transistors of the B versions. These diodes are useful
in certain party-line systems that have multiple V_{CC +} power supplies and can be operated with some of the V_{CC +}
supplies turned off. In such a system, if a supply is turned off and allowed to go to ground, the equivalent input
circuit connected to that supply would be as follows:
Input
Input
A Version
B Version
This would be a problem in specific systems that might have the transmission lines biased to some potential
greater than 1.4 V.
The SN55107A is characterized for operation over the full military temperature range of – 55°C to 125°C. The
SN75107A, SN75107B, and SN75108A are characterized for operation from 0°C to 70°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright © 1998, Texas Instruments Incorporated
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