SN55110A, SN75110A, SN75112
DUAL LINE DRIVERS
SLLS106G − DECEMBER 1975 − REVISED NOVEMBER 2004
D
Improved Stability Over Supply Voltage and
D
D
D
D
D
D
D
D
D
Temperature Ranges
Constant-Current Outputs
High Speed
Standard Supply Voltages
High Output Impedance
High Common-Mode Output Voltage Range
. . . −3 V to 10 V
TTL-Input Compatibility
Inhibitor Available for Driver Selection
Glitch Free During Power Up/Power Down
SN75112 and External Circuit Meets or
Exceeds the Requirements of CCITT
Recommendation V.35
SN55110A . . . J OR W PACKAGE
SN75110A . . . D, N, OR NS PACKAGE
SN75112 . . . D OR N PACKAGE
(TOP VIEW)
1A
1B
1C
2C
2A
2B
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
CC+
1Y
1Z
V
CC−
D
2Z
2Y
SN55110A . . . FK PACKAGE
(TOP VIEW)
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.
ORDERING INFORMATION
TA
PDIP (N)
PACKAGE†
Tube of 25
Tube of 50
0 C 70°C
0°C to 70 C
Reel of 2500
SOIC (D)
Tube of 50
Reel of 2500
SOP (NS)
CDIP (J)
−55°C to 125°C
CFP (W)
LCCC (FK)
Reel of 2000
Tube of 25
Tube of 150
Tube of 55
1B
1A
NC
V
CC+
1Y
1C
NC
2C
NC
2A
4
5
6
7
8
3 2 1 20 19
18
17
16
15
14
9 10 11 12 13
1Z
NC
V
CC−
NC
D
NC − No internal connection
ORDERABLE
PART NUMBER
SN75110AN
SN75112N
SN75110AD
SN75110ADR
SN75112D
SN75112DR
SN75110ANSR
SN55110AJ
SNJ55110AJ
SNJ55110AW
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.
On products compliant to MIL PRF 38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
Copyright
2004, Texas Instruments Incorporated
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
2B
GND
NC
2Y
2Z
TOP-SIDE
MARKING
SN75110AN
SN75112N
SN75110A
SN75112
SN75110A
SN55110AJ
SNJ55110AJ
SNJ55110AW
SNJ55110AFK
1
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, I
O(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
A
X
X
L
X
H
B
X
X
X
L
H
ENABLE
INPUTS
C
L
X
H
H
H
D
X
L
H
H
H
OUTPUTS†
Y
Off
Off
On
On
Off
Z
Off
Off
Off
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
SN55110A, SN75110A, SN75112
DUAL LINE DRIVERS
SLLS106G − DECEMBER 1975 − REVISED NOVEMBER 2004
schematic (each driver)
VCC+
14
+
2.2 kΩ
NOM
C
D
3, 4
10
To Other
Driver
−
−
+
2.2 kΩ
NOM
8, 13
9, 12
A
B
GND
1, 5
2, 6
7
Y
Z
−
Common to Both Drivers
+
VCC−
11
−
+
. . . VCC+ Bus
−
. . . VCC− Bus
−
To Other Driver
Pin numbers shown are for the D, J, N, NS, and W packages.
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
3
SN55110A, SN75110A, SN75112
DUAL LINE DRIVERS
SLLS106G − DECEMBER 1975 − REVISED NOVEMBER 2004
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
†
Supply voltage: V
CC+
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
V
CC−
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −7 V
Input voltage, V
I
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
Output voltage range, V
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −5 V to 12 V
Package thermal impedance,
θ
JA
(see Notes 2 and 3): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86°C/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80°C/W
NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . 76°C/W
Package thermal impedance,
θ
JC
(see Notes 4 and 5): FK package . . . . . . . . . . . . . . . . . . . . . . . . 13.42°C/W
J package . . . . . . . . . . . . . . . . . . . . . . . . . 15.05°C/W
W package . . . . . . . . . . . . . . . . . . . . . . . . 14.65°C/W
Operating virtual junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Case temperature for 60 seconds: FK package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: J or W package . . . . . . . . . . . . . . . . 300°C
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. Voltage values are with respect to network ground terminal.
2. Maximum power dissipation is a function of TJ(max),
θ
JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
4. Maximum power dissipation is a function of TJ(max),
θ
JC, and TC. The maximum allowable power dissipation at any allowable case
temperature is PD = (TJ(max) − TC)/θJC. Operating at the absolute maximum TJ of 150°C can affect reliability.
5. The package thermal impedance is calculated in accordance with MIL-STD-883.
recommended operating conditions (see Note 6)
SN55110A
MIN
VCC+
VCC−
Supply voltage
Supply voltage
Positive common-mode output voltage
Negative common-mode output voltage
VIH
VIL
High-level input voltage
Low-level output voltage
4.5
−4.5
0
0
2
0.8
NOM
5
−5
MAX
5.5
−5.5
10
−3
SN75110A
SN75112
MIN
4.75
−4.75
0
0
2
0.8
NOM
5
−5
MAX
5.25
−5.25
10
−3
V
V
V
V
V
V
°C
UNIT
TA
Operating free-air temperature
−55
125
0
70
NOTE 6: When using only one channel of the line drivers, the other channel should be inhibited and/or have its outputs grounded.
4
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
SN55110A, SN75110A, SN75112
DUAL LINE DRIVERS
SLLS106G − DECEMBER 1975 − REVISED NOVEMBER 2004
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VIK
Input clamp voltage
TEST CONDITIONS†
VCC± = MIN,
VCC± = MAX,
IL = −12 mA
VO = 10 V
SN55110A
SN75110A
MIN
TYP‡
−0.9
12
MAX
−1.5
15
24
6.5
12
100
1
VCC = MAX,
CC±
VI = 5.5 V
2
40
VCC = MAX,
CC±
VCC = MAX,
CC±
VI = 2.4 V
VI = 0.4 V
23
80
−3
−6
35
25
VCC± = MAX,
A and B inputs at 0.4 V,
C and D inputs at 2 V
VCC± = MAX,
CC
A and B inputs at 0.4 V,
C and D inputs at 2 V
VCC± = MAX,
A, B, C, and D inputs at 0.4 V
VCC± = MAX,
A, B, C, and D inputs at 0.4 V
15
MIN
SN75112
TYP‡
−0.9
27
28
27
100
1
mA
2
40
80
−3
−6
40
mA
µA
A
µA
MAX
−1.5
40
32
mA
V
UNIT
IO(on)
On-state output current
VCC = MIN to MAX,
VO = −1 V to 1 V, TA = 25°C
VCC± = MIN,
VCC± = MIN,
VO = −3 V
VO = 10 V
IO(off)
II
Off-state output current
Input current
at maximum
input voltage
High-level
input current
Low-level
input current
A, B, or C inputs
D input
A, B, or C inputs
D input
A, B, or C inputs
D input
IIH
IIL
ICC+(on)
Supply current from VCC
with driver enabled
Supply current from VCC−
with driver enabled
Supply current from VCC−
with driver inhibited
Supply current from VCC±
with driver inhibited
mA
ICC−(on)
ICC+(off)
ICC−(off)
−34
−50
−65
−100
mA
21
−17
30
−32
mA
mA
† For conditions shown as MIN or MAX, use appropriate value specified under recommended operating conditions.
‡ All typical values are at VCC+ = 5 V, VCC− = −5 V, TA = 25°C.
switching characteristics, V
CC±
=
±5
V, T
A
= 25°C (see Figure 1)
PARAMETER§
tPLH
tPHL
tPLH
tPHL
FROM
(INPUT)
A or B
C or D
TO
(OUTPUT)
Y or Z
Y or Z
TEST CONDITIONS
CL = 40 pF,
CL = 40 pF,
RL = 50
Ω
Ω,
RL = 50
Ω
Ω,
MIN
TYP
9
9
16
13
MAX
15
15
25
25
ns
ns
UNIT
§ tPLH = propagation delay time, low- to high-level output
tPHL = propagation delay time, high- to low-level output
POST OFFICE BOX 655303
•
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5
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