TI SN75157D

SN75157
DUAL DIFFERENTIAL LINE RECEIVER
SLLS084C – SEPTEMBER 1980 – REVISED MARCH 1997
D
D
D
D
D
D
D
Meets or Exceeds the Requirements of
ANSI Standards EIA/TIA-422-B and
EIA/TIA-423-B and ITU Recommendation
V.10 and V.11
Operates From Single 5-V Power Supply
Wide Common-Mode Voltage Range
High Input Impedance
TTL-Compatible Outputs
High-Speed Schottky Circuitry
8-Pin Dual-In-Line Package
D or P PACKAGE
(TOP VIEW)
1IN +
1OUT
2OUT
GND
1
8
2
7
3
6
4
5
VCC
1IN –
2IN +
2IN –
description
The SN75157 is a dual differential line receiver designed to meet Standards EIA/TIA-422-B and -423-B and ITU
V.10 and V.11. It utilizes Schottky circuitry and has TTL-compatible outputs. The inputs are compatible with
either a single-ended or a differential-line system. The device operates from a single 5-V power supply and is
supplied in 8-pin dual-in-line and small-outline packages.
The SN75157 is characterized for operation from 0°C to 70°C.
logic symbol†
1IN +
1IN –
2IN +
2IN –
1
logic diagram (positive logic)
2
7
6
5
3
1IN +
1OUT
1IN –
2OUT
2IN +
2IN –
1
7
2
1OUT
6
5
3
2OUT
† This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
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.
Copyright  1997, 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.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SN75157
DUAL DIFFERENTIAL LINE RECEIVER
SLLS084C – SEPTEMBER 1980 – REVISED MARCH 1997
schematics of inputs and outputs
EQUIVALENT OF EACH INPUT
TYPICAL OF ALL OUTPUTS
VCC
VCC
50 Ω NOM
Input
8 kΩ
Output
Current
Source
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V
Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 15 V
Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 15 V
Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 5.5 V
Low-level output current, IOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 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.
NOTES: 1. All voltage values, except differential input voltage, are with respect to the network ground terminal.
2. Differential input voltage is measured at the noninverting input with respect to the corresponding inverting input.
DISSIPATION RATING TABLE
TA ≤ 25°C
POWER RATING
OPERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
D
725 mW
5.8 mW/°C
464 mW
P
1000 mW
8.0 mW/°C
640 mW
PACKAGE
recommended operating conditions
Supply voltage, VCC
MIN
NOM
MAX
UNIT
4.75
5
5.25
V
0
25
Common-mode input voltage, VIC
Operating free-air temperature, TA
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
±7
V
70
°C
SN75157
DUAL DIFFERENTIAL LINE RECEIVER
SLLS084C – SEPTEMBER 1980 – REVISED MARCH 1997
electrical characteristics over recommended ranges of supply voltage, common-mode input
voltage, and operating free-air temperature (unless otherwise noted)†
PARAMETER
TEST CONDITIONS
VIT
Input threshold voltage (VIT + and VIT –)
Vhys
VOH
Hysteresis voltage (VIT + – VIT –)
VOL
Low-level output voltage
II
See Note 3
High-level output voltage
Input current
TYP‡
MIN
VID = 0.2 V,
VID = – 0.2 V,
IO = – 1 mA
IO = 20 mA
VCC = 0 to 5.5 V,,
See Note 4
VI = 10 V
VI = – 10 V
MAX
– 0.2
0.2
– 0.4
0.4
2.5
UNIT
V
70
mV
3.5
V
0.35
0.5
1.1
3.25
– 1.6
– 3.25
V
mA
IOS
Short-circuit output current§
VO = 0,
VID = 0.2 V
– 40
– 75 – 100
mA
ICC
Supply current
VID = – 0.5 V,
No load
35
50
mA
† The algebraic convention, where the less positive (more negative) limit is designated as minimum, is used in this data sheet for threshold levels
only.
‡ All typical values are at VCC = 5 V, TA = 25°C.
§ Only one output should be shorted at a time and duration of the short circuit should not exceed one second.
NOTES: 3. The expanded threshold parameter is tested with a 500-Ω resistor in series with each input.
4. The input not under test is grounded.
switching characteristics, VCC = 5 V, TA = 25°C
PARAMETER
tPLH
tPHL
TEST CONDITIONS
Propagation delay time, low- to high-level output
CL = 15 pF,
pF
Propagation delay time, high- to low-level output
MIN
See Figure 1
TYP
MAX
UNIT
15
25
ns
13
25
ns
PARAMETER MEASUREMENT INFORMATION
VCC +
Output
VCC +
0.5 V
392 Ω
Input
Input
(see Note B)
50%
50%
– 0.5 V
51 Ω
tPLH
CL = 15 pF
(see Note A)
3.92 kΩ
TEST CIRCUIT
Output
1.5 V
tPHL
1.5 V
VOLTAGE WAVEFORMS
NOTES: A. CL includes probe and jig capacitance.
B. The input pulse is supplied by a generator having the following characteristics: tr ≤ 5 ns, tf ≤ 5 ns, PRR ≤ 5 MHz, duty cycle = 50%.
Figure 1. Test Circuit and Voltage Waveforms
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
SN75157
DUAL DIFFERENTIAL LINE RECEIVER
SLLS084C – SEPTEMBER 1980 – REVISED MARCH 1997
TYPICAL CHARACTERISTICS
OUTPUT VOLTAGE
vs
DIFFERENTIAL INPUT VOLTAGE
ÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏ
ÏÏÏ ÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏ ÏÏÏ
4
OUTPUT VOLTAGE
vs
DIFFERENTIAL INPUT VOLTAGE
4
3
VIC = 0
VIC = ± 7 V
2
VIC = ± 7 V
1
3
VIC = 0
VIC = ± 7 V
2
– 50
0
0
– 100
100
50
VIC = ± 7 V
VIC = 0
1
VIC = 0
0
– 100
ÏÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏ ÏÏÏÏÏ
ÏÏÏÏ
ÏÏÏÏÏ
ÏÏÏÏ ÏÏÏ
ÏÏÏ
VCC = 5.25 V
TA = 25°C
VO
VO – Output Voltage – V
VO
VO – Output Voltage – V
VCC = 4.75 V
TA = 25°C
– 50
VID – Differential Input Voltage – mV
Figure 2
VOH – High-Level Output Voltage – V
4
3.5
3
2.5
2
1.5
1
ÏÏÏ
ÏÏÏÏÏ
ÏÏÏ
ÏÏÏ
ÏÏÏÏÏ
ÏÏÏ
ÏÏÏÏÏ
0.6
VCC = 5 V
VID = – 0.2 V
TA = 25°C
0.5
0.4
0.3
0.2
0.1
0.5
0
0
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
IOH – High-Level Output Current – mA
0
5
10
15
20
Figure 5
POST OFFICE BOX 655303
25
30
35
IOL – Low-Level Output Current – mA
Figure 4
4
100
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
VOL – Low-Level Output Voltge – V
ÏÏÏÏÏ
ÏÏÏÏÏ
ÏÏÏÏÏ
VCC = 5 V
VID = 0.2 V
TA = 25°C
4.5
50
Figure 3
HIGH-LEVEL OUTPUT VOLTAGE
vs
HIGH-LEVEL OUTPUT CURRENT
5
0
VID – Differential Input Voltage – mV
• DALLAS, TEXAS 75265
40
SN75157
DUAL DIFFERENTIAL LINE RECEIVER
SLLS084C – SEPTEMBER 1980 – REVISED MARCH 1997
TYPICAL CHARACTERISTICS
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
100
ÏÏÏÏÏ
ÏÏÏÏÏ
No Load
Inputs Open
TA = 25°C
IICC
CC – Supply Current – mA
90
80
70
60
50
40
30
20
10
0
0
1
2
3
4
5
6
7
8
VCC – Supply Voltage – V
Figure 6
APPLICATION INFORMATION
5V
Twisted Pair
5V
1/2 SN75157
1/2 SN75158
5V
Rt
1/2 SN75157
Figure 7. EIA/TIA-422-B System Application
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• DALLAS, TEXAS 75265
5
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Copyright  1998, Texas Instruments Incorporated