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SN75112 Datasheet Preview

SN75112 Datasheet

DUAL LINE DRIVERS

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SN55110A, SN75110A, SN75112
DUAL LINE DRIVERS
D Improved Stability Over Supply Voltage and
Temperature Ranges
D Constant-Current Outputs
D High Speed
D Standard Supply Voltages
D High Output Impedance
D High Common-Mode Output Voltage Range
. . . −3 V to 10 V
D TTL-Input Compatibility
D Inhibitor Available for Driver Selection
D Glitch Free During Power Up/Power Down
D SN75112 and External Circuit Meets or
Exceeds the Requirements of CCITT
Recommendation V.35
description/ordering information
The SN55110A, SN75110A, and SN75112 dual
line drivers have improved output current
regulation with supply-voltage and temperature
variations. In addition, the higher current of the
SN75112 (27 mA) allows data to be transmitted
over longer lines. These drivers offer optimum
performance when used with the SN55107A,
SN75107A, and SN75108A line receivers.
SLLS106G − DECEMBER 1975 − REVISED NOVEMBER 2004
SN55110A . . . J OR W PACKAGE
SN75110A . . . D, N, OR NS PACKAGE
SN75112 . . . D OR N PACKAGE
(TOP VIEW)
1A 1
1B 2
1C 3
2C 4
2A 5
2B 6
GND 7
14 VCC+
13 1Y
12 1Z
11 VCC−
10 D
9 2Z
8 2Y
SN55110A . . . FK PACKAGE
(TOP VIEW)
3 2 1 20 19
1C 4
18 1Z
NC 5
17 NC
2C 6
16 VCC−
NC 7
15 NC
2A 8
14 D
9 10 11 12 13
NC − No internal connection
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP (N)
Tube of 25
SN75110AN
SN75112N
SN75110AN
SN75112N
0°C to 70°C
SOIC (D)
Tube of 50
Reel of 2500
Tube of 50
Reel of 2500
SN75110AD
SN75110ADR
SN75112D
SN75112DR
SN75110A
SN75112
SOP (NS)
Reel of 2000 SN75110ANSR
SN75110A
−55°C to 125°C
CDIP (J)
CFP (W)
Tube of 25
Tube of 150
SN55110AJ
SNJ55110AJ
SNJ55110AW
SN55110AJ
SNJ55110AJ
SNJ55110AW
LCCC (FK)
Tube of 55
SNJ55110AFK
SNJ55110AFK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright 2004, Texas Instruments Incorporated
On products compliant to MILĆPRFĆ38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
1




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SN75112 Datasheet Preview

SN75112 Datasheet

DUAL LINE DRIVERS

No Preview Available !

SN55110A, SN75110A, SN75112
DUAL LINE DRIVERS
SLLS106G − DECEMBER 1975 − REVISED NOVEMBER 2004
description/ordering information (continued)
These drivers feature independent channels with common voltage supply and ground terminals. The significant
difference between the three drivers is in the output-current specification. The driver circuits feature a constant
output current that is switched to either of two output terminals by the appropriate logic levels at the input
terminals. The output current can be switched off (inhibited) by low logic levels on the enable inputs. The output
current nominally is 12 mA for the ’110A devices and is 27 mA for the SN75112.
The enable/inhibit feature is provided so the circuits can be used in party-line or data-bus applications. A strobe
or inhibitor (enable D), common to both drivers, is included for increased driver-logic versatility. The output
current in the inhibited mode, IO(off), is specified so that minimum line loading is induced when the driver is used
in a party-line system with other drivers. The output impedance of the driver in the inhibited mode is very high.
The output impedance of a transistor is biased to cutoff.
The driver outputs have a common-mode voltage range of −3 V to 10 V, allowing common-mode voltage on the
line without affecting driver performance.
All inputs are diode clamped and are designed to satisfy TTL-system requirements. The inputs are tested at
2 V for high-logic-level input conditions and 0.8 V for low-logic-level input conditions. These tests ensure
400-mV noise margin when interfaced with TTL Series 54/74 devices.
The SN55110A is characterized for operation over the full military temperature range of −55°C to 125°C. The
SN75110A and SN75112 are characterized for operation from 0°C to 70°C.
FUNCTION TABLE
(each driver)
LOGIC
INPUTS
ENABLE
INPUTS
OUTPUTS†
A
B
C
D
Y
Z
X
X
L
X
Off Off
X
X
X
L
Off Off
L
X
H
H
On Off
X
L
H
H
On Off
H
H
H
H
Off On
H = high level, L = low level, X = irrelevant
When using only one channel of the line drivers,
the other channel should be inhibited and/or have
its outputs grounded.
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Part Number SN75112
Description DUAL LINE DRIVERS
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SN75112 Datasheet PDF






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