SN75ALS192
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS007D – JULY 1985 – REVISED APRIL 1998
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
Meets or Exceeds the Requirements of
ANSI Standard EIA/TIA-422-B and ITU
Recommendation V.11
D
Designed to Operate up to 20 Mbaud
D
3-State TTL Compatible
D
Single 5-V Supply Operation
D
High Output Impedance in Power-Off
Condition
D
Complementary Output-Enable Inputs
D
Improved Replacement for the AM26LS31
description
The four differential line drivers are designed for data transmission over twisted-pair or parallel-wire
transmission lines. They meet the requirements of ANSI Standard EIA/TIA-422-B and ITU
Recommendations V.11 and are compatible with 3-state TTL circuits. Advanced low-power Schottky
technology provides high speed without the usual power penalties. Standby supply current is typically only
26 mA, while typical propagation delay time is less than 10 ns.
High-impedance inputs maintain low input currents, less than 1 µA for a high level and less than 100 µA for a
low level. Complementary output-enable inputs (G and G
) allow these devices to be enabled at either a high
input level or low input level. The SN75ALS192 is capable of data rates in excess of 20 Mbit/s and is designed
to operate with the SN75ALS193 quadruple line receiver.
The SN75ALS192 is characterized for operation from 0°C to 70°C.
FUNCTION TABLE
(each driver)
INPUT
ENABLES OUTPUTS
A
G G Y Z
H H X H L
L H XLH
H XLHL
L XLLH
X LHZZ
H = high level, L = low level, X = irrelevant,
Z = high impedance (off)
Copyright 1998, Texas Instruments Incorporated
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.
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.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1A
1Y
1Z
G
2Z
2Y
2A
GND
V
CC
4A
4Y
4Z
G
3Z
3Y
3A
D OR N PACKAGE
(TOP VIEW)
SN75ALS192
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS007D – JULY 1985 – REVISED APRIL 1998
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
logic symbol
†
3Y
10
3Z
11
4Y
14
4Z
13
9
3A
15
4A
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
1Y
2
1Z
3
2Y
6
2Z
5
1
1A
7
2A
4
G
12
≥1
G
EN
logic diagram (positive logic)
1
7
12
9
15
2
3
6
5
10
11
14
13
4
1A
2A
3A
4A
G
G
1Y
1Z
2Y
2Z
3Y
3Z
4Y
4Z
SN75ALS192
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS007D – JULY 1985 – REVISED APRIL 1998
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
schematics of inputs and outputs
EQUIVALENT OF
EACH DATA (A) INPUT
EQUIVALENT OF
EACH ENABLE INPUT
EQUIVALENT OF
EACH OUTPUT
Output
V
CC
Input
V
CC
Input
V
CC
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage, V
CC
(see Note 1) 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, V
I
7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Off-state output voltage 6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 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.
NOTE 1: All voltage values except differential output voltage, V
OD,
are with respect to network ground terminal.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 125°C
POWER RATING
D 950 mW 7.6 mW/°C 608 mW N/A
N 1150 mW 9.2 mW/°C 736 mW N/A
recommended operating conditions
MIN NOM MAX
UNIT
Supply voltage, V
CC
4.75 5 5.25 V
High level input voltage, V
IH
2 V
Low-level input voltage, V
IL
0.8 V
High-level output current, I
OH
–20 mA
Low-level output current, I
OL
20 mA
Operating free-air temperature, T
A
0 70 °C
SN75ALS192
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS007D – JULY 1985 – REVISED APRIL 1998
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
†
MIN TYP‡MAX UNIT
V
IK
Input clamp voltage VCC = MIN, II = –18 mA –1.5 V
V
OH
High-level output voltage VCC = MIN, IOH = –20 mA 2.5 V
V
OL
Low-level output voltage VCC = MIN, IOL = 20 mA 0.5 V
V
O
Output voltage VCC = MAX, IO = 0 0 6 V
|V
OD1
| Differential output voltage VCC = MIN, IO = 0 1.5 6 V
|V
OD2
| Differential output voltage RL = 100 Ω, See Figure 1 1/2 V
OD1
or 2
§
V
∆|VOD|
Change in magnitude of
differential output voltage
¶
RL = 100 Ω, See Figure 1 ±0.2 V
V
OC
Common-mode output voltage
#
RL = 100 Ω, See Figure 1 ±3 V
∆|VOC|
Change in magnitude of
common-mode output voltage
¶
RL = 100 Ω, See Figure 1 ±0.2 V
p
p
VO = 6 V 100
IOOutput current with power off
V
CC
=
0
VO = –0.25 V –100
µ
A
p
p
VO = 0.5 V –20
IOZOff-state (high-impedance state) output current
V
CC
=
MAX
VO = 2.5 V 20
µ
A
I
I
Input current at maximum input voltage VCC = MAX, VI = 7 V 100 µA
I
IH
High-level input current VCC = MAX, VI = 2.7 V 20 µA
I
IL
Low-level input current VCC = MAX, VI = 0.4 V –200 µA
I
OS
Short-circuit output current
||
VCC = MAX –30 –150 mA
I
CC
Supply current (all drivers) VCC = MAX, All outputs disabled 26 45 mA
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
‡
All typical values are at VCC = 5 V and TA = 25°C.
§
The minimum V
OD2
with a 100-Ω load is either 1/2 V
OD1
or 2 V, whichever is greater.
¶
|VOD| and |VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed from a high level to a low level.
#
In ANSI Standard EIA/TIA-422-B, VOC, which is the average of the two output voltages with respect to ground, is called output offset voltage,
VOS.
||
Not more than one output should be shorted at a time, and duration of the short circuit should not exceed one second.
switching characteristics, VCC = 5 V, TA = 25°C (see Figure 2)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
PLH
Propagation delay time, low-to-high-Ievel output S1 and S2 open, CL = 30 pF 6 13 ns
t
PHL
Propagation delay time, high-to-low-level output S1 and S2 open, CL = 30 pF 9 14 ns
Output-to-output skew S1 and S2 open, CL = 30 pF 3 6 ns
t
PZH
Output enable time to high level S1 open and S2 closed 11 15 ns
t
PZL
Output enable time to low level S1 closed and S2 open 16 20 ns
t
PHZ
Output disable time from high level S1 open and S2 closed, CL = 10 pF 8 15 ns
t
PLZ
Output disable time from low level S1 and S2 closed, CL = 10 pF 18 20 ns
SN75ALS192
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS007D – JULY 1985 – REVISED APRIL 1998
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
50 Ω
50 Ω
V
OD2
V
OC
Figure 1. Differential and Common-Mode Output Voltages
Input A
Output Y
Output Z
t
PLH
(see Note A)
t
PHL
t
PHL
t
PLH
PROPAGATION DELAY TIMES AND SKEW
V
OH
V
OH
V
OL
V
OL
1.5 V
0 V
3 V
1.3 V
Skew Skew
Enable G
Waveform 1
(see Note C)
3 V
0 V
V
OL
V
OH
1.5 V
t
PZL
ENABLE AND DISABLE TIMES
See Note B
Enable G
1.5 V
t
PZH
0.5 V
0.5 V
t
PLZ
S1 Closed
S2 Closed
S1 Closed
S2 Closed
≈ 1.5 V
≈ 1.5 V
≈ 0 V
S1 Open
S2 Closed
S1 Closed
S2 Open
Waveform 2
(see Note C)
≈ 4.5 V
1.5 V
t
PHZ
1.5 V
1.3 V
1.5 V
1.5 V 1.5 V
VOLTAGE W AVEFORMS
TEST CIRCUIT
V
CC
From Output
Under Test
C
L
(see Note D)
75 Ω
180 Ω
Test
Point
S1
S2
NOTES: A. When measuring propagation delay times and skew, switches S1 and S2 are open.
B. Each enable is tested separately.
C. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
D. CL includes probe and jig capacitance.
E. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO ≈ 50 Ω, tr ≤ 15 ns, and tf ≤ 6 ns.
Figure 2. Test Circuit and Voltage Waveforms
SN75ALS192
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS007D – JULY 1985 – REVISED APRIL 1998
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
†
Figure 3
Y OUTPUT VOLTAGE
vs
DATA INPUT VOLTAGE
VI – Data Input Voltage – V
3.5
3
2.5
2
0 0.5 1 1.5
4
4.5
5
2 2.5 3
1.5
1
0.5
0
– Y Output Voltage – VV
O
No Load
Outputs Enabled
TA = 25°C
VCC = 5.5 V
VCC = 5 V
VCC = 4.5 V
Figure 4
Y OUTPUT VOLTAGE
vs
DATA INPUT VOLTAGE
VI – Data Input Voltage – V
3.5
3
2.5
2
0 0.5 1 1.5
4
4.5
5
2 2.5 3
1.5
1
0.5
0
VCC = 5 V
Outputs Enabled
No Load
TA = 70°C
TA = 25°C
TA = 0°C
TA = –55°C
TA = 125°C
– Y Output Voltage – VV
O
NOTE A: The A input is connected to VCC during the testing of the
Y outputs and to ground during the testing of the Z outputs.
Figure 5
Y OUTPUT VOLTAGE
vs
ENABLE G INPUT VOLTAGE
VI – Enable G Input Voltage – V
VI = 2 V
RL = 470 Ω to GND
See Note A
TA = 25°C
VCC = 5.5 V
VCC = 5 V
VCC = 4.5 V
2.5
2
1.5
0
0 0.5 1 1.5 2
3
3.5
4
2.5 3
1
0.5
– Y Output Voltage – VV
O
NOTE A: The A input is connected to VCC during the testing of the
Y outputs and to ground during the testing of the Z outputs.
Figure 6
Y OUTPUT VOLTAGE
vs
ENABLE G INPUT VOLTAGE
VI – Enable G Input Voltage – V
3.5
3
2.5
2
0 0.5 1 1.5
4
4.5
5
2 2.5 3
1.5
1
0.5
0
VCC = 5 V
VI = 2 V
RL = 470 Ω to GND
See Note A
TA = 125°C
TA = 70°C
TA = 25°C
TA = 0°C
TA = –55°C
– Y Output Voltage – VV
O
†
Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
SN75ALS192
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS007D – JULY 1985 – REVISED APRIL 1998
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
†
Figure 7
NOTE A: The A input is connected to VCC during the testing of the
Y outputs and to ground during the testing of the Z outputs.
3
2
1
0
0 0.5 1
4
5
6
1.5 2 2.5 3
Z OUTPUT VOLTAGE
vs
ENABLE G INPUT VOLTAGE
VI – Enable G Input Voltage – V
– Y Output Voltage – VV
O
RL = 470 Ω to V
CC
See Note A
TA = 25°C
VCC = 5.5 V
VCC = 5 V
VCC = 4.5 V
Figure 8
NOTE B: The A input is connected to GND during the testing of the
Y outputs and to VCC during the testing of the Z outputs.
3
2
1
0
0 0.5 1
4
5
6
1.5 2 2.5 3
Z OUTPUT VOLTAGE
vs
ENABLE G INPUT VOLTAGE
VI – Enable G Input Voltage – V
VCC = 5 V
RL = 470 Ω to V
CC
See Note B
TA = 125°C
TA = –55°C
TA = 25°C
TA = 0°C
TA = 70°C
– Y Output Voltage – VV
O
†
Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
SN75ALS192
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS007D – JULY 1985 – REVISED APRIL 1998
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
†
Figure 9
NOTE A: The A input is connected to VCC during the testing of the
Y outputs and to ground during the testing of the Z outputs.
HIGH-LEVEL OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
TA – Free-Air Temperature – °C
– High-Level Output Voltage – VV
OH
VCC = 5 V
IOH = –20 mA
See Note A
2.5
1.5
0.5
0
– 75 – 50 – 25 0 25 50
3
4
5
75 100 125
1
3.5
2
4.5
Figure 10
– High-Level Output Voltage – VV
OH
HIGH-LEVEL OUTPUT VOLTAGE
vs
OUTPUT CURRENT
IOH – High-Level Output Current – mA
3.5
3
2.5
2
4
4.5
5
1.5
1
0.5
0
VCC = 5.5 V
VCC = 5 V
VCC = 4.5 V
0 – 20 – 40 – 60 – 80 – 100
See Note A
TA = 25°C
NOTE A: The A input is connected to VCC during the testing of the
Y outputs and to ground during the testing of the Z outputs.
†
Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
SN75ALS192
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS007D – JULY 1985 – REVISED APRIL 1998
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
†
Figure 11
NOTE A: The A input is connected to GND during the testing of the
Y outputs and to VCC during the testing of the Z outputs.
LOW-LEVEL OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
TA – Free-Air Temperature – °C
– Low-Level Output Voltage – VV
OL
VCC = 5 V
IOL= –20 mA
See Note A
– 75 – 50 – 25 0 25 50 75 100 125
0.35
0.3
0.25
0.2
0.4
0.45
0.5
0.15
0.1
0.05
0
Figure 12
NOTE A: The A input is connected to GND during the testing of the
Y outputs and to VCC during the testing of the Z outputs.
– Low-Level Output Voltage – VV
OL
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
IOL – Low-Level Output Current – mA
0.7
0.6
0.5
0.4
0.8
0.9
1
0.3
0.2
0.1
0
See Note A
TA = 25°C
02040608010010 30 50 70 90
VCC = 4.5 V
VCC = 5 V
VCC = 5.5 V
Figure 13
40
20
10
0
012345
60
70
80
678
50
30
Inputs Grounded
Outputs Enabled
No Load
TA = 25°C
Inputs Open
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
VCC – Supply Voltage– V
– Supply Current – mAI
CC
Figure 14
20
10
5
0
012345
30
35
40
678
25
15
A Inputs Open or Grounded
Outputs Disabled
No Load
TA = 25°C
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
VCC – Supply Voltage – V
– Supply Current – mAI
CC
†
Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
SN75ALS192
QUADRUPLE DIFFERENTIAL LINE DRIVER
SLLS007D – JULY 1985 – REVISED APRIL 1998
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
10 k 100 k 1 M 10 M 100 M
VCC = 5 V
Input = 0 to 3 V
Duty Cycle = 50%
CL = 30 pF to All Outputs
SUPPLY CURRENT
vs
FREQUENCY
f – Frequency– Hz
– Supply Current – mAI
CC
0
30
40
50
10
20
60
Figure 15
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any product or service without notice, and advise customers to obtain the latest version of relevant information
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pertaining to warranty, patent infringement, and limitation of liability.
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
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DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
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TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
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Copyright 1998, Texas Instruments Incorporated
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