SN55182, SN75182
DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D – OCTOBER 1972 – REVISED APRIL 1998
1IN–
1RT
1IN+
1STRB
1RTC
1OUT
GND
1
14
2
13
3
12
4
11
5
10
6
9
7
8
VCC
2IN–
2RT
2IN+
2STRB
2RTC
2OUT
SN55182 . . . FK PACKAGE
(TOP VIEW)
1IN+
NC
1STRB
NC
1RTC
description
4
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
2RT
NC
2IN+
NC
2STRB
1OUT
GND
NC
2OUT
2RTC
The SN55182 and SN75182 dual differential line
receivers are designed to sense small differential
signals in the presence of large common-mode
noise. These devices give TTL-compatible output
signals as a function of the polarity of the
differential input voltage. The frequency response
of each channel can be easily controlled by a
single external capacitor to provide immunity to
differential noise spikes. The output goes to a high
level when the inputs are open circuited. A strobe
input (STRB) is provided that, when in the low
level, disables the receiver and forces the output
to a high level.
1IN+
NC
V CC
2IN–
D
SN55182 . . . J OR W PACKAGE
SN75182 . . . N PACKAGE
(TOP VIEW)
Single 5-V Supply
Differential Line Operation
Dual Channels
TTL Compatibility
±15-V Common-Mode Input Voltage Range
±15-V Differential Input Voltage Range
Individual Channel Strobes
Built-In Optional Line-Termination Resistor
Individual Frequency Response Controls
Designed for Use With Dual Differential
Drivers SN55183 and SN75183
Designed to Be Interchangeable With
National Semiconductor DS7820A and
DS8820A
1RT
D
D
D
D
D
D
D
D
D
D
NC – No internal connection
THE SN55182 IS NOT RECOMMENDED
FOR NEW DESIGNS
The receiver is of monolithic single-chip construction, and both halves of the dual circuits use common
power-supply and ground terminals.
The SN55182 is characterized for operation over the full military temperature range of –55°C to 125°C. The
SN75182 is characterized for operation from 0°C to 70°C.
FUNCTION TABLE
INPUTS
STRB
OUTPUT
OUT
L
VID
X
H
H
H
H
L
L
H
H = VI ≥ VIH min or VID more
positive than VTH max
L = VI ≤ VIL max or VID more
negative than VTL max
X = irrelevant
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  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.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
SN55182, SN75182
DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D – OCTOBER 1972 – REVISED APRIL 1998
logic symbol†
3
1IN+
&
1
1IN–
2
1RT
6
RT
4
1STRB
5
1RTC
1OUT
RESP
11
2IN+
13
2IN–
8
12
2RT
2OUT
10
2STRB
9
2RTC
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the J, N, and W packages.
logic diagram (positive logic)
1IN+
1IN–
1RT
1RTC
1STRB
2IN+
2IN–
2RT
2RTC
2STRB
3
6
1
5
4
11
8
13
12
9
10
Pin numbers shown are for the J, N, and W packages.
2
1OUT
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
2OUT
SN55182, SN75182
DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D – OCTOBER 1972 – REVISED APRIL 1998
schematic (each receiver)
RTC
5, 9
14
VCC
167 Ω
3 kΩ
5 kΩ
1.5 kΩ
4.15 kΩ
5 kΩ
320 Ω
6, 8
1.5 kΩ
IN+
3, 11
170 Ω
RT
5 kΩ
1 kΩ
2, 12
1 kΩ
750 Ω
1 kΩ
167 Ω
ÁÁÁ
IN–
OUT
7
GND
167 Ω
1, 13
4, 10
5 kΩ
STRB
Resistor values shown are nominal.
Pin numbers shown are for the J, N, and W packages.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
SN55182, SN75182
DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D – OCTOBER 1972 – REVISED APRIL 1998
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V
Common-mode input voltage, VIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 V
Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 V
Strobe input voltage, VI(STRB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V
Output sink current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: N package . . . . . . . . . . . . . . . . . . . . . 260°C
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: J or W package . . . . . . . . . . . . . . . . 300°C
Case temperature for 60 seconds, Tc: FK 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: 1. All voltage values, except differential voltages, are with respect to network ground terminal.
2. Differential voltage values are at the noninverting terminal with respect to the inverting terminal.
DISSIPATION RATING TABLE
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
1375 mW
11.0 mW/°C
880 mW
275 mW
1375 mW
11.0 mW/°C
880 mW
275 mW
N
1150 mW
9.2 mW/°C
736 mW
–
W‡
1000 mW
8.0 mW/°C
640 mW
200 mW
PACKAGE
FK‡
J‡
TA = 70°C
POWER RATING
TA = 125°C
POWER RATING
‡ In the FK, J, and W packages, SN55182 chips are alloy mounted.
recommended operating conditions
SN55182
Supply voltage, VCC
MIN
NOM
4.5
5
MIN
NOM
5.5
4.5
5
±15
Common-mode input voltage, VIC
High-level strobe input voltage, VIH(STRB)
Low-level strobe input voltage, VIL(STRB)
5.5
V
±15
V
V
5.5
2.1
5.5
0.9
0
0.9
V
–400
µA
16
mA
70
°C
Low-level output current, IOL
16
–55
POST OFFICE BOX 655303
UNIT
0
–400
Operating free-air temperature, TA
MAX
2.1
High-level output current, IOH
4
SN75182
MAX
• DALLAS, TEXAS 75265
125
0
SN55182, SN75182
DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D – OCTOBER 1972 – REVISED APRIL 1998
electrical characteristics over recommended ranges of VCC, VIC, and operating free-air
temperature (unless otherwise noted)
TEST CONDITIONS†
PARAMETER
MIN
TYP‡
MAX
VIT
IT+
Positive going input threshold voltage
Positive-going
VO = 2.5 V,,
IOH = –400 µA
VIC = –3 V to 3 V
VIC = –15 V to 15 V
0.5
VIT
IT–
Negative going input threshold voltage
Negative-going
VO = 0.4 V,,
IOL = 16 mA
VIC = –3 V to 3 V
VIC = –15 V to 15 V
–0.5
VOH
High level output voltage
High-level
VOL
Low level output voltage
Low-level
Input current
Noninverting input
IIH(STRB)
IIL(STRB)
High-level strobe input current
ri
Input resistance
ICC
VID = 1 V
V, V(STRB) = 2
2.1
1V
V, IOH = –400
400 µA
25
2.5
42
4.2
55
5.5
VID = –1
1V
V, V(STRB) = 0
0.4
4V
V, IOH = –400
400 µA
25
2.5
42
4.2
55
5.5
0 25
0.25
04
0.4
V
V
V
V
VIC = 15 V
VIC = 0
3
4.2
0
–0.5
VIC = –15 V
VIC = 15 V
–3
–4.2
5
7
VIC = 0
VIC = –15 V
–1
–1.4
–7
–9.8
5
µA
–1
–1.4
mA
V(STRB) = 5.5 V
V(STRB) = 0
Low-level strobe input current
mA
Inverting input
3.6
5
Noninverting input
1.8
2.5
120
170
250
Ω
–2.8
–4.5
–6.7
mA
4.2
6
6.8
10.2
9.4
14
TYP
MAX
Line-terminating resistance
IOS
–1
1V
1V
VID = –1
V, V(STRB) = 2
2.1
V, IOL = 16 mA
Inverting input
II
1
UNIT
Short-circuit output current
TA = 25°C
VCC = 5.5 V,
Supply current (average per receiver)
VIC = 15 V,
VIC = 0,
VO = 0
VID = –1 V
VID = –0.5 V
VID = –1 V
VIC = –15 V,
† Unless otherwise noted, V(STRB) ≥ 2.1 V or open.
‡ All typical values are at VCC = 5 V, VIC = 0, and TA = 25°C.
kΩ
mA
switching characteristics, VCC = 5 V, TA = 25°C
PARAMETER
TEST CONDITIONS
MIN
UNIT
tPLH(D)
Propagation delay time,
low- to high-level output from differential input
RL = 400 Ω,
CL = 15 pF,
see Figure 1
18
40
ns
tPHL(D)
Propagation delay time,
high- to low-level output from differential input
RL = 400 Ω,
CL = 15 pF,
see Figure 1
31
45
ns
tPLH(S)
Propagation delay time,
low- to high-level output from STRB input
RL = 400 Ω,
CL = 15 pF,
see Figure 1
9
30
ns
tPHL(S)
Propagation delay time,
high- to low-level output from STRB input
RL = 400 Ω,
CL = 15 pF,
see Figure 1
15
25
ns
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
5
SN55182, SN75182
DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D – OCTOBER 1972 – REVISED APRIL 1998
PARAMETER MEASUREMENT INFORMATION
Output
Input
VCC = 5 V
Pulse
Generator No. 1
(see Note A)
400 Ω
See Note C
50 Ω
CL = 15 pF
(see Note B)
Pulse
Generator No. 2
(see Note A)
50 Ω
Strobe
Input
TEST CIRCUIT
tw
2.5 V
Input
0V
0V
0V
0V
–2.5 V
tw
>100 ns
>100 ns
>100 ns
>100 ns
2.6 V
STRB
1.3 V
1.3 V
1.3 V
1.3 V
0V
tPHL(D)
tPLH(D)
tPHL(S)
tPLH(S)
VOH
Output
1.3 V
1.3 V
1.3 V
1.3 V
VOL
VOLTAGE WAVEFORMS
NOTES: A. The pulse generators have the following characteristics: ZO = 50 Ω, tr ≤ 10 ns, tf ≤ 10 ns, tw = 0.5 ±0.1 µs, PRR ≤ 1 MHz.
B. CL includes probe and jig capacitance.
C. All diodes are 1N3064 or equivalent.
Figure 1. Test Circuit and Voltage Waveforms
6
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN55182, SN75182
DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D – OCTOBER 1972 – REVISED APRIL 1998
TYPICAL CHARACTERISTICS†
DIFFERENTIAL INPUT THRESHOLD VOLTAGE
vs
COMMON-MODE INPUT VOLTAGE
DIFFERENTIAL INPUT THRESHOLD VOLTAGE
vs
SUPPLY VOLTAGE
0.5
VIC = 0
TA = 25°C
VVID
ID – Differential Input Threshold Voltage – V
VVID
ID – Differential Input Threshold Voltage – V
0.3
0.2
0.1
VO = 2.5 V, IO = –400 µA
0
–0.1
VO = 0.4 V, IO = 16 mA
–0.2
–0.3
4.5
5
5.5
VCC – Supply Voltage – V
0.4
0.3
0.2
VO = 2.5 V, IO = –400 µA
0.1
0
VO = 0.4 V, IO = 16 mA
–0.1
–0.2
–0.3
–0.4
–0.5
–20
6
VCC = 5 V
TA = 25°C
–15
–10 –5
0
5
10
15
VIC – Common-Mode Input Voltage – V
Figure 2
20
Figure 3
DIFFERENTIAL INPUT THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE
V
VID
ID – Differential Input Threshold Voltage – V
100
VO = 2.5 V, IO = –400 µA
50
0
–50
VO = 0.4 V, IO = 16 mA
–100
–150
VCC = 5 V
VIC = 0
–200
–75
–50
–25
0
25
50
75
100
125
TA – Free-Air Temperature – °C
Figure 4
† Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
7
SN55182, SN75182
DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D – OCTOBER 1972 – REVISED APRIL 1998
TYPICAL CHARACTERISTICS†
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
VOLTAGE TRANSFER CHARACTERISTICS
5
5
VCC = 5 V
VIC = 0
VCC = 5 V
TA = 25°C
5V
4
VID = 0.5 V, IO = –400 µA
V
VO
O – Output Voltage – V
V
VO
O – Output Voltage – V
4
3
2
400 Ω
From Output
Under Test
4 Each
1N3064
10 kΩ
3
TA = –55°C
TA = 125°C
2
1
1
VID = –0.5 V, IOL = 16 mA
0
–75
–50
–25
0
25
50
75
100
0
–0.5 –0.4 –0.3 –0.2 –0.1
125
TA – Free-Air Temperature – °C
0.3 0.4 0.5
Figure 6
TERMINATING RESISTANCE
vs
FREE-AIR TEMPERATURE
INPUT CURRENT
vs
INPUT VOLTAGE
200
10
VCC = 5 V
VID = 0 to ±20 V
TA = 25°C
Terminating Resistance – Ω
6
IIII – Input Current – mA
0.1 0.2
VID – Differential Input Voltage – V
Figure 5
8
0
4
2
IN–
0
–2
–4
IN+
190
180
170
160
–6
–8
–10
–20
–15
–10
–5
5
0
10
VI – Input Voltage – V
15
20
150
–75
–50
–25
0
25
50
75
100
125
TA – Free-Air Temperature – °C
Figure 8
Figure 7
† Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
8
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN55182, SN75182
DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D – OCTOBER 1972 – REVISED APRIL 1998
TYPICAL CHARACTERISTICS†
SUPPLY CURRENT
(AVERAGE PER RECEIVER)
vs
COMMON-MODE INPUT VOLTAGE
POWER DISSIPATION
(AVERAGE PER RECEIVER)
vs
COMMON-MODE INPUT VOLTAGE
12
300
250
PD
PD – Power Dissipation – mW
IICC
CC – Supply Current – mA
10
VID = –1 V
8
6
VID = 1 V
4
2
0
–20
VCC = 5 V
VID = –1 V
VCC = 5 V
No Load
TA = 25°C
–15
–10
Max Rated PD at TA = 125°C
(W Package )
200
150
TA = 25°C
100
50
TA = 125°C
–5
0
5
10
15
20
VIC – Common-Mode Input Voltage – V
0
–20
–15
–10
–5
0
5
10
15
20
VIC – Common-Mode Input Voltage – V
Figure 9
Figure 10
† Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
9
SN55182, SN75182
DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D – OCTOBER 1972 – REVISED APRIL 1998
TYPICAL CHARACTERISTICS†
MAXIMUM NOISE PULSE DURATION
vs
MAXIMUM RESPONSE TIME-CONTROL CAPACITANCE
tw – Maximum Noise Pulse Duration – ns
tw
1000
VCC = 5 V
TA = 25°C
See Note A
700
400
200
2.5 V
0V
100
– 2.5 V
70
tw
40
INPUT PULSE
20
10
10
40
100
400
1000
4000
10000
Response Time Control Capacitance – pF
NOTE A: Figure 11 shows the maximum duration of the illustrated pulse that can be applied differently without the output changing from the
low to high level.
Figure 11
† Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
10
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
SN55182, SN75182
DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D – OCTOBER 1972 – REVISED APRIL 1998
PROPAGATION DELAY TIME
FROM DIFFERENTIAL INPUT
vs
FREE-AIR TEMPERATURE
38
36
VCC = 5 V
See Figure 1
34
tPHL(D)
32
30
28
26
24
22
20
tPLH(D)
18
16
14
–75
–50
–25
0
25
50
75
100
TA – Free-Air Temperature – °C
125
t P(S) – Propagation Delay Time From Strobe Input – ns
t P(D) – Propagation Delay Time From Differential Input – ns
TYPICAL CHARACTERISTICS†
PROPAGATION DELAY TIME
FROM STROBE INPUT
vs
FREE-AIR TEMPERATURE
20
18
VCC = 5 V
See Figure 1
tPHL(S)
16
14
12
tPLH(S)
10
8
6
4
–75
–50
–25
0
25
50
75
100
125
TA – Free-Air Temperature – °C
Figure 13
Figure 12
† Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
11
SN55182, SN75182
DUAL DIFFERENTIAL LINE RECEIVERS
SLLS092D – OCTOBER 1972 – REVISED APRIL 1998
APPLICATION INFORMATION
VCC = 5 V
VCC = 5 V
1/2 ’183
Inputs
1/2 ’182
A
B
C
D
Z
IN–
0.002 µF
(see Note A)
OUT
RT
RTC
Y
100 pF
(see Note B)
IN+
Twisted
Pair
STRB
GND
GND
NOTES: A. When the inputs are open circuited, the output is high. A capacitor may be used for dc isolation of the line-terminating resistor.
At the frequency of operation, the impedance of the capacitor should be relatively small.
Example: let f = 5 MHz
C = 0.002 µF
1
1
Z (C)
2pfC
2p 5 10 6 0.002
Z (C)
16W
+
[
+ ǒ
Ǔǒ
10 *6
Ǔ
B. Use of a capacitor to control response time is optional.
Figure 14. Transmission of Digital Data Over Twisted-Pair Line
12
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IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
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subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
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.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
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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