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
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 transmission 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.
SN75107A, SN75107B, SN75108A ...D OR N PACKAGE
SN55107A ... J OR W PACKAGE
(TOP VIEW)
14
1
1A
2
1B
3
NC
4
1Y
5
1G
6
S
GND
SN55107A . . . FK PACKAGE
NC
NC
1Y
NC
1G
NC – No internal connection
7
(TOP VIEW)
1B1ANC
3212019
4
5
6
7
8
910111213
S
GND
13
12
11
10
NC
9
8
CC +
V
2G
V
CC+
V
CC–
2A
2B
NC
2Y
2G
CC –
V
18
17
16
15
14
2Y
2A
NC
2B
NC
NC
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
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
A Version
Input
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.
Copyright 1998, Texas Instruments Incorporated
CC+
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1
SN55107A, SN75107A, SN75107B, SN75108A
DUAL LINE RECEIVERS
SLLS069D – JANUARY 1977 – REVISED APRIL 1998
FUNCTION TABLE
DIFFERENTIAL INPUTS
A – B
VID ≥ 25 mVXXH
–25 mV < VID < 25 mV
VID ≤ –25 mV
H = high level, L = low level, X = irrelevant
STROBES
GS
XLH
LXH
HHIndeterminate
XLH
LXH
HHL
OUTPUT
Y
logic symbol
†
These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, J, N, and W packages.
†
SN55107A, SN75107A, and SN75107B
6
1A
1B
1G
2A
2B
2G
S
1
2
5
12
11
8
EN
&
6
S
1
4
1Y
9
2Y
1A
1B
1G
2A
2B
2G
2
5
12
11
8
logic diagram (positive logic)
6
S
1
1A
1B
1G
2G
2A
2B
2
5
8
12
11
4
9
EN
1Y
2Y
SN75108A
&
4
1Y
9
2Y
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
schematic (each receiver)
+
A
Inputs
B
VCC
–
14
1 kΩ
See
Note 2
1, 12
2, 11
13
VCC
1 kΩ
3 kΩ3 kΩ
400 Ω
4.8 kΩ
SN55107A, SN75107A, SN75107B, SN75108A
DUAL LINE RECEIVERS
SLLS069D – JANUARY 1977 – REVISED APRIL 1998
See
Note 2
760 Ω
4 kΩ1.6 kΩ
†
R
4.25 kΩ
Common
to Both
Receivers
120 Ω
800 Ω
4, 9
7
5, 8
6
Output Y
GND
Strobe G
Strobe S
Pin numbers shown are for D, J, N, and W packages.
†
R = 1 kΩ for ’107A and SN75107B, 750 Ω for SN75108A.
NOTES: 1. Resistor values shown are nominal.
2. Components shown with dashed lines in the output circuitry are applicable to the ’107A and SN75107B only. Diodes in series with
the collectors of the differential input transistors are short circuited on ’107A and SN75108A.
To Other Receiver
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3
SN55107A, SN75107A, SN75107B, SN75108A
SN55107A
,,
DUAL LINE RECEIVERS
SLLS069D – JANUARY 1977 – REVISED APRIL 1998
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: J package 300°C. . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D, N, or W package 260°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: 3. All voltage values, except differential voltages, are with respect to network ground terminal.
4. Differential voltage values are at the noninverting (A) terminal with respect to the inverting (B) terminal.
5. Common-mode input voltage is the average of the voltages at the A and B inputs.
DISSIPATION RATING TABLE
PACKAGE
D950 mW7.6 mW/°C608 mW—
FK1375 mW11.0 mW/°C880 mW275 mW
J1375 mW11.0 mW/°C880 mW275 mW
N1150 mW9.2 mW/°C736 mW—
W1000 mW8.0 mW/°C640 mW200 mW
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 125°C
POWER RATING
recommended operating conditions (see Note 6)
SN75107A, SN75107B,
SN75108A
MINNOMMAXMINNOMMAX
Supply voltage, V
Supply voltage, V
High-level input voltage between differential inputs, V
Low-level input voltage between differential inputs, V
Common-mode input voltage, VIC (see Notes 7 and 8)–3
Input voltage, any differential input to GND (see Note 8)–5
High-level input voltage at strobe inputs, V
Low-level input voltage at strobe inputs, V
Low-level output current, I
Operating free-air temperature, T
‡
The algebraic convention, in which the less positive (more negative) limit is designated as minimum, is used in this data sheet for input voltage
levels only.
NOTES: 6. When using only one channel of the line receiver, the strobe input (G) of the unused channel should be grounded and at least one
7. The recommended combinations of input voltages fall within the shaded area in Figure 1.
8. The common-mode voltage may be as low as –4 V provided that the more positive of the two inputs is not more negative than
CC+
CC–
(see Note 7)0.02550.0255V
IDH
(see Note 7)–5
IDL
IH(S)
IL(S)
OL
A
of the differential inputs of the unused receiver should be terminated at some voltage between –3 V and 3 V .
–3 V.
4.555.54.7555.25V
–4.5–5–5.5 –4.75–5–5.25V
‡
‡
‡
25.525.5V
00.800.8V
–55125070°C
–0.025–5
–16–16mA
3–3
3–5
‡
‡
‡
–0.025V
UNIT
3V
3V
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN55107A, SN75107A, SN75107B, SN75108A
DUAL LINE RECEIVERS
SLLS069D – JANUARY 1977 – REVISED APRIL 1998
RECOMMENDED COMBINATIONS
OF INPUT VOLTAGES
3
2
1
0
–1
–2
Input A to GND Voltage – V
–3
–4
–5
–5 –4 –3–2–10
Input B to GND Voltage – V
NOTE A: Recommended input-voltage combinations are in the shaded area.
Figure 1. Recommended Combinations of Input Voltages
123
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
5
SN55107A, SN75107A, SN75107B, SN75108A
PARAMETER
TEST CONDITIONS
†
UNIT
VOHHigh-level output voltage
V
I
400 µA
2.4
V
VOLLow-level output voltage
V
I
0.4
0.4
V
IIHHigh-level input current
V
MAX
A
I
V
MAX
A
I
g
I
V
MAX
V
V
6–1.6
mA
IIHHigh-level input current into S
I
y
CC+
,
V
MAX
T
25°C
18301830mA
PARAMETER
UNIT
t
gy,g,
ns
t
gy,g,
ns
t
gy,g,
ns
t
gyg
ns
DUAL LINE RECEIVERS
SLLS069D – JANUARY 1977 – REVISED APRIL 1998
electrical characteristics over recommended free-air temperature range (unless otherwise noted)
’107A, SN75107BSN75108A
TYP
‡
MAXMIN
11mA
–1.
22mA
MIN
V
= MIN,
p
p
p
IL
IH
IL
I
IL
I
OH
I
OS
CCH+
I
CCH–
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
‡
All typical values are at V
§
Not more than one output should be shorted at a time.
Low-level input current
High-level input current into
1G or 2G
Low-level input current
into 1G or 2G
p
Low-level input current into S V
High-level output currentV
Short-circuit output current§V
Supply current from V
outputs high
Supply current from V
outputs high
CC+
CC–
= 5 V, V
CC±
IDH
VIC = –3 V to 3 V
V
CC±
= –25 mV,
IDL
VIC = –3 V to 3 V
A
CC±
B
A
CC±
B
V
CC±
V
CC±
CC±
V
CC±
V
CC±
CC±
CC±
CC±
,
CC±
,
V
CC±
= –5 V , TA = 25°C.
CC–
= 25 mV,
= MIN,
=
=
= MAX,V
= MAX, V
=
= MAX,V
= MAX, V
= MAX,V
= MIN, VOH = MAX V
= MAX–18–70mA
=
= MAX,TA = 25°C–8.4–15–8.4–15mA
V
= 0.8 V,
IL(S)
= –
OH
V
= 2 V,
IH(S)
= 16 mA,
OL
VID = 5 V30753075
VID = –5 V30753075
VID = –5 V–10–10
VID = 5 V–10–10
IH(G)
= MAX V
IH(G)
,
IH(S)
,
= 0.4
IL(G)
= 2.4 V8080µA
IH(S)
= MAX V
= 0.4 V–3.2–3.2mA
IL(S)
=
A
,
= 2.4 V4040µA
CC+
CC+
CC+
°
TYP
‡
MAX
µ
µ
250µA
switching characteristics, V
PLH(D)
PHL(D)
PLH(S)
PHL(S)
Propagation delay time, low- to high-level output,
from differential inputs A and B
Propagation delay time, high- to low-level output,
from differential inputs A and B
Propagation delay time, low- to high-level output,
from strobe input G or S
Propagation delay time, high- to low-level output,
from strobe input G or S