MAX3083EEPD [MAXIM]
【15kVESD-Protected,Fail-Safe,High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers; ± 15KVESD保护，失效保护，高速（ 10Mbps的） ，限摆率限制RS - 485 / RS -422收发器
| 型号： | MAX3083EEPD |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | 【15kVESD-Protected,Fail-Safe,High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers |
| 文件： | 总21页 (文件大小：322K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1800; Rev 0; 9/00
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
General Description
Features
The MAX3080E–MAX3089E are ±±15k eꢀeꢁcrꢂocactꢁ ꢃto-
ꢁharge (ESD)-prꢂceꢁceꢃ, htgh-opeeꢃ cranoꢁetvero fꢂr RS-
481/RS-422 ꢁꢂmmuntꢁactꢂn chac ꢁꢂncatn ꢂne ꢃrtver anꢃ
ꢂne reꢁetver. Theoe ꢃevtꢁeo feacure fatꢀ-oafe ꢁtrꢁutcry,
whtꢁh guaranceeo a ꢀꢂgtꢁ-htgh reꢁetver ꢂucpuc when che
reꢁetver tnpuco are ꢂpen ꢂr ohꢂrceꢃ. Thto meano chac che
reꢁetver ꢂucpuc wtꢀꢀ be a ꢀꢂgtꢁ htgh tf aꢀꢀ cranomtccero ꢂn a
cermtnaceꢃ buo are ꢃtoabꢀeꢃ (htgh tmpeꢃanꢁe). The
MAX3080E/MAX308±E/MAX3082E feacure reꢃuꢁeꢃ
oꢀew-race ꢃrtvero chac mtntmtze EMI anꢃ reꢃuꢁe refꢀeꢁ-
ctꢂno ꢁauoeꢃ by tmprꢂperꢀy cermtnaceꢃ ꢁabꢀeo, aꢀꢀꢂwtng
errꢂr-free ꢃaca cranomtootꢂn up cꢂ ±±15bpo. The
MAX3083E/MAX3084E/MAX3081E ꢂffer htgher ꢃrtver
ꢂucpuc oꢀew-race ꢀtmtco, aꢀꢀꢂwtng cranomtc opeeꢃo up cꢂ
1005bpo. The MAX3086E/MAX3087E/ MAX3088Eo’ ꢃrt-
ver oꢀew raceo are nꢂc ꢀtmtceꢃ, ma5tng cranomtc opeeꢃo
up cꢂ ±0Mbpo pꢂootbꢀe. The MAX3089E’o oꢀew race to
oeꢀeꢁcabꢀe becween ±±15bpo, 1005bpo, anꢃ ±0Mbpo by
ꢃrtvtng a oeꢀeꢁcꢂr ptn wtch a otngꢀe chree-ocace ꢃrtver. Aꢀꢀ
ꢃevtꢁeo feacure enhanꢁeꢃ ESD prꢂceꢁctꢂn. Aꢀꢀ cranomtccer
ꢂucpuco anꢃ reꢁetver tnpuco are prꢂceꢁceꢃ cꢂ ±±15k
uotng che Human Bꢂꢃy Mꢂꢃeꢀ.
ꢀ ESD Protection for RS-485 I/O Pins
15kV, Human Body Model
ꢀ True Fail-Safe Receiver While Maintaining
EIA/TIA-485 Compatibility
ꢀ Enhanced Slew-Rate Limiting Facilitates
Error-Free Data Transmission
(MAX3080E–MAX3085E/MAX3089E)
ꢀ 1nA Low-Current Shutdown Mode (Except
MAX3081E/MAX3084E/MAX3087E)
ꢀ Pin-Selectable Full/Half-Duplex Operation
(MAX3089E)
ꢀ Phase Controls to Correct for Twisted-Pair
Reversal (MAX3089E)
ꢀ Allow Up to 256 Transceivers on the Bus
Applications
RS-422/RS-481 Cꢂmmuntꢁactꢂno
Leveꢀ Tranoꢀacꢂro
Tranoꢁetvero fꢂr EMI-Senotctve Appꢀtꢁactꢂno
Inꢃuocrtaꢀ-Cꢂncrꢂꢀ Lꢂꢁaꢀ Area Necwꢂr5o
Theoe cranoꢁetvero cyptꢁaꢀꢀy ꢃraw 371µA ꢂf ouppꢀy
ꢁurrenc when unꢀꢂaꢃeꢃ, ꢂr when fuꢀꢀy ꢀꢂaꢃeꢃ wtch che ꢃrt-
vero ꢃtoabꢀeꢃ.
Aꢀꢀ ꢃevtꢁeo have a ±/8-untc-ꢀꢂaꢃ reꢁetver tnpuc tmpeꢃanꢁe
chac aꢀꢀꢂwo up cꢂ 216 cranoꢁetvero ꢂn che buo. The
MAX3082E/MAX3081E/MAX3088E are tncenꢃeꢃ fꢂr haꢀf-
ꢃupꢀex ꢁꢂmmuntꢁactꢂno, whtꢀe che MAX3080E/MAX308±E/
MAX3083E/MAX3084E/MAX3086E/MAX3087E are
tncenꢃeꢃ fꢂr fuꢀꢀ-ꢃupꢀex ꢁꢂmmuntꢁactꢂno. The MAX3089E
to oeꢀeꢁcabꢀe becween haꢀf-ꢃupꢀex anꢃ fuꢀꢀ-ꢃupꢀex ꢂpera-
ctꢂn. Ic aꢀoꢂ feacureo tnꢃepenꢃencꢀy prꢂgrammabꢀe
reꢁetver anꢃ cranomtccer ꢂucpuc phaoe vta oeparace ptno.
Ordering Information
PART
TEMP. RANGE
0°C cꢂ +70°C
0°C cꢂ +70°C
-40°C cꢂ +81°C
-40°C cꢂ +81°C
PIN-PACKAGE
±4 SO
MAX3080ECSD
MAX3080ECPD
MAX3080EESD
MAX3080EEPD
±4 Pꢀaoctꢁ DIP
±4 SO
±4 Pꢀaoctꢁ DIP
Ordering Information continued at end of data sheet.
Selector Guide
Data
Rate
(Mbps)
Slew-
Rate
Limited
Low-
Power
Shutdown
Receiver/ Quiescent Transceivers
Industry-
Standard
Pinout
Half/Full
Duplex
Pin
Count
Part
Driver
Current
(µA)
On
Enable
Bus (µA)
MAX3080E
MAX3081E
MAX3082E
MAX3083E
MAX3084E
MAX3085E
MAX3086E
MAX3087E
MAX3088E
Fuꢀꢀ
Fuꢀꢀ
Haꢀf
Fuꢀꢀ
Fuꢀꢀ
Haꢀf
Fuꢀꢀ
Fuꢀꢀ
Haꢀf
0.±±1
0.±±1
0.±±1
0.1
Yeo
Yeo
Yeo
Yeo
Yeo
Yeo
Nꢂ
Yeo
Nꢂ
Yeo
Nꢂ
371
371
371
371
371
371
371
371
371
371
216
216
216
216
216
216
216
216
216
216
±4
8
71±80
71±79
71±76
71±80
71±79
71±76
71±80
71±79
71±76
71±80*
Yeo
Yeo
Nꢂ
Yeo
Yeo
Nꢂ
8
±4
8
0.1
0.1
Yeo
Yeo
Nꢂ
Yeo
Yeo
Nꢂ
8
±0
±4
8
±0
Nꢂ
±0
Nꢂ
Yeo
Yeo
Yeo
Yeo
8
MAX3089E Seꢀeꢁcabꢀe Seꢀeꢁcabꢀe Seꢀeꢁcabꢀe
±4
*Pin compatible with 75180, with additional features implemented using pins 1, 6, 8, and 13.
________________________________________________________________ Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
ABSOLUTE MAXIMUM RATINGS
Suppꢀy kꢂꢀcage (k ) ............................................................+7k
Cꢂnctnuꢂuo Pꢂwer Dtootpactꢂn
CC
Cꢂncrꢂꢀ Inpuc kꢂꢀcage (RE, DE)...................-0.3k cꢂ (k
Speꢁtaꢀ Inpuc kꢂꢀcage
(H/F, SRL, TXP, RXP)..............................-0.3k cꢂ (k
Drtver Inpuc kꢂꢀcage (DI).............................-0.3k cꢂ (k
Drtver Oucpuc kꢂꢀcage (A, B, Y, Z)........................................±±3k
Reꢁetver Inpuc kꢂꢀcage (A, B) ..............................................±±3k
Reꢁetver Inpuc kꢂꢀcage, Fuꢀꢀ Dupꢀex (A, B) ..........................±21k
+ 0.3k)
8-Ptn Pꢀaoctꢁ DIP (ꢃerace 9.09mW/°C abꢂve +70°C) ...727mW
8-Ptn SO (ꢃerace 1.88mW/°C abꢂve +70°C)................47±mW
±4-Ptn Pꢀaoctꢁ DIP (ꢃerace ±0.0mW/°C abꢂve +70°C) ....800mW
±4-Ptn SO (ꢃerace 8.33mW/°C abꢂve +70°C)..............667mW
Operactng Temperacure Rangeo
MAX308_EC_ _ ...................................................0°C cꢂ +70°C
MAX308_EE_ _ ................................................-40°C cꢂ +81°C
Scꢂrage Temperacure Range.............................-61°C cꢂ +±10°C
Leaꢃ Temperacure (oꢂꢀꢃertng, ±0o) .................................+300°C
CC
+ 0.3k)
+ 0.3k)
CC
CC
Reꢁetver Oucpuc kꢂꢀcage (RO)....................-0.3k cꢂ (k
+ 0.3k)
CC
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 in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(k
= +1k ± 1%, T = T
A
cꢂ T
, unꢀeoo ꢂcherwtoe nꢂceꢃ. Typtꢁaꢀ vaꢀueo are ac k
= +1k anꢃ T = +21°C.) (Nꢂce ±)
CC A
CC
MIN
MAX
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DRIVER
Dtfferenctaꢀ Drtver Oucpuc
(Nꢂ Lꢂaꢃ)
k
k
Ftgure 1
1
k
k
OD±
Ftgure 1, R = 10Ω (RS-422)
Ftgure 1, R = 27Ω (RS-481)
2.0
±.1
Dtfferenctaꢀ Drtver Oucpuc
OD2
Change-tn-Magntcuꢃe ꢂf
Dtfferenctaꢀ Oucpuc kꢂꢀcage
(Nꢂce 2)
∆k
Ftgure 1, R = 10Ω ꢂr R = 27Ω
0.2
k
OD
Drtver Cꢂmmꢂn-Mꢂꢃe Oucpuc
kꢂꢀcage
k
Ftgure 1, R = 10Ω ꢂr R = 27Ω
Ftgure 1, R = 10Ω ꢂr R = 27Ω
3
k
k
OC
Change-tn-Magntcuꢃe ꢂf
Cꢂmmꢂn-Mꢂꢃe kꢂꢀcage (Nꢂce 2)
∆k
0.2
OC
Inpuc Htgh kꢂꢀcage
Inpuc Lꢂw kꢂꢀcage
k
2.0
±0
k
k
DE, DI, RE, H/F, TXP, RXP
DE, DI, RE, H/F, TXP, RXP
IH±
k
0.8
IL±
MAX3080E–MAX3081E, anꢃ MAX3089E wtch
SRL = k ꢂr unꢁꢂnneꢁceꢃ
DI Inpuc Hyocereoto
SRL Inpuc Currenc
k
±00
mk
µA
HYS
CC
I
I
±2
40
DE, DI, RE
IN±
IN2
H/F, TXP, RXP, tncernaꢀ puꢀꢀꢃꢂwn
Inpuc Htgh kꢂꢀcage
Inpuc Mtꢃꢃꢀe kꢂꢀcage
Inpuc Lꢂw kꢂꢀcage
k
SRL
k
- 0.8
CC
k
k
k
IH2
k
SRL (Nꢂce 3)
SRL
0.4k
0.6k
CC
IM2
CC
k
0.8
71
IL2
SRL = k
CC
SRL Inpuc Currenc
I
I
µA
µA
µA
IN3
SRL = GND (Nꢂce 3)
-71
k
k
k
k
= ±2k
= -7k
= ±2k
= -7k
±21
-71
IN
IN
IN
IN
DE = GND,
Inpuc Currenc (A anꢃ B)
IN4
k
= GND ꢂr 1.21k
CC
±21
Oucpuc Lea5age (Y anꢃ Z)
Fuꢀꢀ Dupꢀex
DE = GND,
= GND ꢂr 1.21k
I
O
k
CC
-±00
-210
-7k ≤ k
0k ≤ k
0k ≤ k
≤ k
CC
≤ ±2k
≤ k
CC
OUT
Drtver Shꢂrc-Ctrꢁutc Oucpuc
Currenc (Nꢂce 4)
k
OD±
210
mA
OUT
OUT
±21
2
_______________________________________________________________________________________
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
DC ELECTRICAL CHARACTERISTICS (continued)
(k
= +1k ±1%, T = T
A
cꢂ T
, unꢀeoo ꢂcherwtoe nꢂceꢃ. Typtꢁaꢀ vaꢀueo are ac k
= +1k anꢃ T = +21°C.) (Nꢂce ±)
CC A
CC
MIN
MAX
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
RECEIVER
Reꢁetver Dtfferenctaꢀ Threohꢂꢀꢃ
kꢂꢀcage
k
-7k ≤ k
≤ ±2k
CM
-200
-±21
21
-10
mk
TH
Reꢁetver Inpuc Hyocereoto
Reꢁetver Oucpuc Htgh kꢂꢀcage
Reꢁetver Oucpuc Lꢂw kꢂꢀcage
∆k
mk
k
k
TH
k
I
I
= -4mA, k = -10mk
= 4mA, k = -200mk
k
-±.1
CC
OH
O
O
ID
k
OL
0.4
±±
ID
Three-Scace Oucpuc Currenc ac
Reꢁetver
I
0.4k ≤ k ≤ 2.4k
µA
5Ω
mA
OZR
O
Reꢁetver Inpuc Reotocanꢁe
R
-7k ≤ k
≤ ±2k
CM
96
±7
IN
Reꢁetver Oucpuc Shꢂrc-Ctrꢁutc
Currenc
I
0k ≤ k
≤ k
CC
±91
OSR
RO
SUPPLY CURRENT
Nꢂ ꢀꢂaꢃ,
RE = DI = GND
DE = k
430
900
CC
µA
µA
ꢂr k , SRL = k
CC
CC
DE = GND
DE = k
371
471
420
600
±000
800
Suppꢀy Currenc
I
CC
Nꢂ ꢀꢂaꢃ,
RE = DI = GND
CC
DE = GND
ꢂr k , SRL = GND
CC
Suppꢀy Currenc tn Shucꢃꢂwn
Mꢂꢃe
I
DE = GND, k = k
CC
0.00±
±±1
±0
µA
5k
SHDN
RE
ESD Prꢂceꢁctꢂn fꢂr Y, Z, A, B
Human Bꢂꢃy Mꢂꢃeꢀ
Note 1: Aꢀꢀ ꢁurrenco tncꢂ che ꢃevtꢁe are pꢂotctve; aꢀꢀ ꢁurrenco ꢂuc ꢂf che ꢃevtꢁe are negactve. Aꢀꢀ vꢂꢀcageo are referreꢃ cꢂ ꢃevtꢁe
grꢂunꢃ unꢀeoo ꢂcherwtoe nꢂceꢃ.
Note 2: ∆k
anꢃ ∆k
are che ꢁhangeo tn k
anꢃ k , reopeꢁctveꢀy, when che DI tnpuc ꢁhangeo ocace.
OD
OC
OD OC
Note 3: The SRL ptn to tncernaꢀꢀy btaoeꢃ cꢂ k / 2 by a ±005Ω/±005Ω reotocꢂr-ꢃtvtꢃer. Ic to guaranceeꢃ cꢂ be k / 2 tf ꢀefc
CC
CC
unꢁꢂnneꢁceꢃ.
Note 4: Maxtmum ꢁurrenc ꢀeveꢀ appꢀteo cꢂ pea5 ꢁurrenc juoc prtꢂr cꢂ fꢂꢀꢃbaꢁ5-ꢁurrenc ꢀtmtctng; mtntmum ꢁurrenc ꢀeveꢀ appꢀteo ꢃurtng
ꢁurrenc ꢀtmtctng.
_______________________________________________________________________________________
3
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
SWITCHING CHARACTERISTICS—MAX3080E/MAX3081E/MAX3082E, and MAX3089E
with SRL = Unconnected
(k
CC
= +1k ±1%, T = T
A
cꢂ T
, unꢀeoo ꢂcherwtoe nꢂceꢃ. Typtꢁaꢀ vaꢀueo are ac k
= +1k anꢃ T = +21°C.)
CC A
MIN
MAX
PARAMETER
SYMBOL
CONDITIONS
MIN
100
100
TYP
2030
2030
MAX
2600
2600
UNITS
c
c
DPLH
DPHL
Ftgureo 7 anꢃ 9, R
= 14Ω,
= 14Ω,
= 14Ω,
DIFF
Drtver Inpuc-cꢂ-Oucpuc
no
C
= C = ±00pF
L±
L2
Drtver Oucpuc S5ew
Ftgureo 7 anꢃ 9, R
DIFF
c
-3
±200
2100
no
no
DSKEW
C
L±
= C = ±00pF
c
- c
L2
| DPLH DPHL |
Ftgureo 7 anꢃ 9, R
DIFF
Drtver Rtoe ꢂr Faꢀꢀ Ttme
c
, c
DR DF
667
±±1
±320
C
L±
= C = ±00pF
L2
Maxtmum Daca Race
f
5bpo
no
MAX
Drtver Enabꢀe cꢂ Oucpuc Htgh
Drtver Enabꢀe cꢂ Oucpuc Lꢂw
Drtver Dtoabꢀe Ttme frꢂm Lꢂw
Drtver Dtoabꢀe Ttme frꢂm Htgh
c
Ftgureo 8 anꢃ ±0, C = ±00pF, S2 ꢁꢀꢂoeꢃ
3100
3100
±00
DZH
L
c
Ftgureo 8 anꢃ ±0, C = ±00pF, S± ꢁꢀꢂoeꢃ
no
DZL
DLZ
DHZ
L
c
Ftgureo 8 anꢃ ±0, C = ±1pF, S± ꢁꢀꢂoeꢃ
no
L
c
Ftgureo 8 anꢃ ±0, C = ±1pF, S2 ꢁꢀꢂoeꢃ
±00
no
L
c
c
,
Ftgureo ±± anꢃ ±3; k
≥ 2.0k;
rtoe anꢃ faꢀꢀ ctme ꢂf k ≤ ±1no
RPLH
|
ID |
Reꢁetver Inpuc cꢂ Oucpuc
±27
3
200
±30
no
no
RPHL
ID
c
- c
Dtfferenctaꢀ
Ftgureo ±± anꢃ ±3; k
≥ 2.0k;
rtoe anꢃ faꢀꢀ ctme ꢂf k ≤ ±1no
| RPLH RPHL |
Reꢁetver S5ew
|
ID |
c
RSKD
ID
Reꢁetver Enabꢀe cꢂ Oucpuc Lꢂw
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S± ꢁꢀꢂoeꢃ
20
20
20
10
10
10
no
no
no
RZL
L
Reꢁetver Enabꢀe cꢂ Oucpuc Htgh
Reꢁetver Dtoabꢀe Ttme frꢂm Lꢂw
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S2 ꢁꢀꢂoeꢃ
L
RZH
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S± ꢁꢀꢂoeꢃ
L
RLZ
Reꢁetver Dtoabꢀe Ttme frꢂm
Htgh
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S2 ꢁꢀꢂoeꢃ
L
20
10
no
no
no
RHZ
Ttme cꢂ Shucꢃꢂwn
c
(Nꢂce 1)
10
200
600
SHDN
Drtver Enabꢀe frꢂm Shucꢃꢂwn cꢂ
Oucpuc Htgh
c
c
Ftgureo 8 anꢃ ±0, C = ±1pF, S2 ꢁꢀꢂoeꢃ
6000
DZH(SHDN)
L
Drtver Enabꢀe frꢂm Shucꢃꢂwn cꢂ
Oucpuc Lꢂw
c
Ftgureo 8 anꢃ ±0, C = ±1pF, S± ꢁꢀꢂoeꢃ
6000
3100
3100
no
no
no
DZL(SHDN)
L
Reꢁetver Enabꢀe frꢂm Shucꢃꢂwn-
cꢂ-Oucpuc Htgh
Ftgureo 6 anꢃ ±2, C = ±00pF, S2 ꢁꢀꢂoeꢃ
RZH(SHDN)
L
Reꢁetver Enabꢀe frꢂm Shucꢃꢂwn-
cꢂ-Oucpuc Lꢂw
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S± ꢁꢀꢂoeꢃ
L
RZL(SHDN)
4
_______________________________________________________________________________________
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
SWITCHING CHARACTERISTICS—MAX3083E/MAX3084E/MAX3085E, and MAX3089E with
SRL = V
CC
CC
(k = +1k ±1%, T = T
cꢂ T , unꢀeoo ꢂcherwtoe nꢂceꢃ. Typtꢁaꢀ vaꢀueo are ac k = +1k anꢃ T = +21°C.)
MAX CC A
A
MIN
PARAMETER
SYMBOL
CONDITIONS
MIN
210
210
TYP
720
720
MAX
±000
±000
UNITS
c
c
DPLH
DPHL
Ftgureo 7 anꢃ 9, R
= 14Ω,
= 14Ω,
= 14Ω,
DIFF
Drtver Inpuc-cꢂ-Oucpuc
no
C
= C = ±00pF
L±
L2
Drtver Oucpuc S5ew
Ftgureo 7 anꢃ 9, R
DIFF
c
-3
±±00
710
no
no
DSKEW
C
L±
= C = ±00pF
c
- c
L2
| DPLH DPHL |
Ftgureo 7 anꢃ 9, R
DIFF
Drtver Rtoe ꢂr Faꢀꢀ Ttme
c
c
200
100
130
DR, DF
C
L±
= C = ±00pF
L2
Maxtmum Daca Race
f
5bpo
no
MAX
Drtver Enabꢀe cꢂ Oucpuc Htgh
Drtver Enabꢀe cꢂ Oucpuc Lꢂw
c
Ftgureo 8 anꢃ ±0, C = ±00pF, S2 ꢁꢀꢂoeꢃ
2100
2100
±00
DZH
L
c
Ftgureo 8 anꢃ ±0, C = ±00pF, S± ꢁꢀꢂoeꢃ
no
DZL
DLZ
DHZ
L
Drtver Dtoabꢀe Ttme frꢂm Lꢂw
Drtver Dtoabꢀe Ttme frꢂm Htgh
c
Ftgureo 8 anꢃ ±0, C = ±1pF, S± ꢁꢀꢂoeꢃ
no
L
c
Ftgureo 8 anꢃ ±0, C = ±1pF, S2 ꢁꢀꢂoeꢃ
±00
no
L
c
c
,
Ftgureo ±± anꢃ ±3; k
≥ 2.0k;
ID
|
RPLH
|
Reꢁetver Inpuc cꢂ Oucpuc
±27
3
200
±30
no
no
rtoe anꢃ faꢀꢀ ctme ꢂf k ≤ ±1no
RPHL
ID
c
- c
Dtfferenctaꢀ
Ftgureo ±± anꢃ ±3; k
rtoe anꢃ faꢀꢀ ctme ꢂf k ≤ ±1no
ID
≥ 2.0k;
ID
|
RPLH RPHL
|
|
|
c
RSKD
Reꢁetver S5ew
Reꢁetver Enabꢀe cꢂ Oucpuc Lꢂw
Reꢁetver Enabꢀe cꢂ Oucpuc Htgh
Reꢁetver Dtoabꢀe Ttme frꢂm Lꢂw
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S± ꢁꢀꢂoeꢃ
20
20
20
10
10
10
no
no
no
RZL
L
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S2 ꢁꢀꢂoeꢃ
L
RZH
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S± ꢁꢀꢂoeꢃ
L
RLZ
Reꢁetver Dtoabꢀe Ttme frꢂm
Htgh
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S2 ꢁꢀꢂoeꢃ
L
20
10
no
RHZ
Ttme cꢂ Shucꢃꢂwn
c
(Nꢂce 1)
10
200
600
no
no
SHDN
Drtver Enabꢀe frꢂm
Shucꢃꢂwn-cꢂ-Oucpuc Htgh
c
c
Ftgureo 8 anꢃ ±0, C = ±1pF, S2 ꢁꢀꢂoeꢃ
4100
DZH(SHDN)
L
Drtver Enabꢀe frꢂm
Shucꢃꢂwn-cꢂ-Oucpuc Lꢂw
c
Ftgureo 8 anꢃ ±0, C = ±1pF, S± ꢁꢀꢂoeꢃ
4100
no
DZL(SHDN)
L
Reꢁetver Enabꢀe frꢂm
Shucꢃꢂwn-cꢂ-Oucpuc Htgh
Ftgureo 6 anꢃ ±2, C = ±00pF, S2 ꢁꢀꢂoeꢃ
3100
3100
no
no
RZH(SHDN)
L
Reꢁetver Enabꢀe frꢂm
Shucꢃꢂwn-cꢂ-Oucpuc Lꢂw
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S± ꢁꢀꢂoeꢃ
L
RZL(SHDN)
_______________________________________________________________________________________
5
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
SWITCHING CHARACTERISTICS—MAX3086E/MAX3087E/MAX3088E, and MAX3089E with
SRL = GND
(k
CC
= +1k ±1%, T = T
A
cꢂ T
, unꢀeoo ꢂcherwtoe nꢂceꢃ. Typtꢁaꢀ vaꢀueo are ac k
= +1k anꢃ T = +21°C.)
CC A
MIN
MAX
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
34
MAX
60
UNITS
c
c
DPLH
DPHL
Ftgureo 7 anꢃ 9, R
= 14Ω,
= 14Ω,
= 14Ω,
DIFF
Drtver Inpuc-cꢂ-Oucpuc
no
C
= C = ±00pF
L±
L2
34
60
Drtver Oucpuc S5ew
Ftgureo 7 anꢃ 9, R
DIFF
c
-2.1
±4
±±0
21
no
no
DSKEW
C
= C = ±00pF
c
- c
L±
L2
| DPLH DPHL |
Ftgureo 7 anꢃ 9, R
DIFF
Drtver Rtoe ꢂr Faꢀꢀ Ttme
Maxtmum Daca Race
c
c
DR, DF
C
= C = ±00pF
L±
L2
f
±0
Mbpo
no
MAX
Drtver Enabꢀe cꢂ Oucpuc Htgh
Drtver Enabꢀe cꢂ Oucpuc Lꢂw
Drtver Dtoabꢀe Ttme frꢂm Lꢂw
Drtver Dtoabꢀe Ttme frꢂm Htgh
c
Ftgureo 8 anꢃ ±0, C = ±00pF, S2 ꢁꢀꢂoeꢃ
±10
±10
±00
±00
DZH
L
c
Ftgureo 8 anꢃ ±0, C = ±00pF, S± ꢁꢀꢂoeꢃ
no
DZL
DLZ
DHZ
L
c
Ftgureo 8 anꢃ ±0, C = ±1pF, S± ꢁꢀꢂoeꢃ
no
L
c
Ftgureo 8 anꢃ ±0, C = ±1pF, S2 ꢁꢀꢂoeꢃ
no
L
c
c
,
Ftgureo ±± anꢃ ±3; k
≥ 2.0k;
RPLH
|
ID |
Reꢁetver Inpuc-cꢂ-Oucpuc
±06
0
±10
±±0
no
no
rtoe anꢃ faꢀꢀ ctme ꢂf k ≤ ±1no
RPHL
ID
c
- c
Dtfferenctaꢀ
Ftgureo ±± anꢃ ±3; k
≥ 2.0k;
| RPLH RPHL |
Reꢁetver S5ew
|
ID |
c
RSKD
rtoe anꢃ faꢀꢀ ctme ꢂf k ≤ ±1no
ID
Reꢁetver Enabꢀe cꢂ Oucpuc Lꢂw
Reꢁetver Enabꢀe cꢂ Oucpuc Htgh
Reꢁetver Dtoabꢀe Ttme frꢂm Lꢂw
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S± ꢁꢀꢂoeꢃ
20
20
20
10
10
10
no
no
no
RZL
L
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S2 ꢁꢀꢂoeꢃ
L
RZH
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S± ꢁꢀꢂoeꢃ
L
RLZ
Reꢁetver Dtoabꢀe Ttme frꢂm
Htgh
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S2 ꢁꢀꢂoeꢃ
L
20
10
no
RHZ
Ttme cꢂ Shucꢃꢂwn
c
(Nꢂce 1)
10
200
600
210
no
no
SHDN
Drtver Enabꢀe frꢂm
Shucꢃꢂwn-cꢂ-Oucpuc Htgh
c
c
Ftgureo 8 anꢃ ±0, C = ±1pF, S2 ꢁꢀꢂoeꢃ
L
DZH(SHDN)
Drtver Enabꢀe frꢂm
Shucꢃꢂwn-cꢂ-Oucpuc Lꢂw
c
Ftgureo 8 anꢃ ±0, C = ±1pF, S± ꢁꢀꢂoeꢃ
210
no
DZL(SHDN)
L
Reꢁetver Enabꢀe frꢂm
Shucꢃꢂwn-cꢂ-Oucpuc Htgh
Ftgureo 6 anꢃ ±2, C = ±00pF, S2 ꢁꢀꢂoeꢃ
3100
3100
no
no
RZH(SHDN)
L
Reꢁetver Enabꢀe frꢂm
Shucꢃꢂwn-cꢂ-Oucpuc Lꢂw
c
Ftgureo 6 anꢃ ±2, C = ±00pF, S± ꢁꢀꢂoeꢃ
L
RZL(SHDN)
Note 5: The ꢃevtꢁe to puc tncꢂ ohucꢃꢂwn by brtngtng RE htgh anꢃ DE ꢀꢂw. If che enabꢀe tnpuco are tn chto ocace fꢂr ꢀeoo chan 10no, che
ꢃevtꢁe to guaranceeꢃ nꢂc cꢂ encer ohucꢃꢂwn. If che enabꢀe tnpuco are tn chto ocace fꢂr ac ꢀeaoc 600no, che ꢃevtꢁe to guaranceeꢃ
cꢂ have encereꢃ ohucꢃꢂwn.
6
_______________________________________________________________________________________
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
Typical Operating Characteristics
(k
CC
= +1k, T = +21°C, unꢀeoo ꢂcherwtoe nꢂceꢃ.)
A
OUTPUT CURRENT
vs. RECEIVER OUTPUT HIGH VOLTAGE
OUTPUT CURRENT
vs. RECEIVER OUTPUT LOW VOLTAGE
NO-LOAD SUPPLY CURRENT
vs. TEMPERATURE
30
25
20
15
10
5
60
525
500
A: MAX3086E/MAX3087E/MAX3088E,
MAX3089E WITH
50
40
30
20
10
0
SRL = GND
475
DE = V
CC
450
425
400
375
350
A
DE = GND
B
A
B: MAX3080E–MAX3085E,
MAX3089E WITH
B
325
300
SRL = OPEN OR V
CC
0
0
1
2
3
4
5
0
1
2
3
4
5
-60 -40 -20
0
20 40 60 80 100
OUTPUT HIGH VOLTAGE (V)
OUTPUT LOW VOLTAGE (V)
TEMPERATURE (°C)
SHUTDOWN CURRENT
vs. TEMPERATURE
RECEIVER OUTPUT HIGH VOLTAGE
vs. TEMPERATURE
RECEIVER OUTPUT LOW VOLTAGE
vs. TEMPERATURE
20
18
4.5
4.4
4.3
0.50
0.45
0.40
I
RO
= 8mA
I
RO
= 8mA
16
14
12
0.35
0.30
0.25
4.2
4.1
10
8
6
4
2
4.0
3.9
3.8
0.20
0.15
0.10
0
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
RECEIVER PROPAGATION DELAY
(500kbps MODE) vs. TEMPERATURE
RECEIVER PROPAGATION DELAY
(10Mbps MODE) vs. TEMPERATURE
DRIVER PROPAGATION DELAY
(115kbps MODE) vs. TEMPERATURE
140
112
2.20
2.15
2.10
2.05
2.00
1.95
C
= 100pF
LOAD
C
= 100pF
LOAD
R = 54Ω
t
110
108
135
130
106
104
102
100
98
125
120
115
96
94
1.90
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
_______________________________________________________________________________________
7
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
Typical Operating Characteristics (continued)
(k
CC
= +1k, T = +21°C, unꢀeoo ꢂcherwtoe nꢂceꢃ.)
A
DRIVER PROPAGATION DELAY
(500kbps MODE) vs. TEMPERATURE
DRIVER PROPAGATION DELAY
(10Mbps MODE) vs. TEMPERATURE
DRIVER DIFFERENTIAL OUTPUT VOLTAGE
vs. TEMPERATURE
920
880
840
800
760
720
680
640
600
560
520
60
1.90
1.89
R = 54Ω
t
R = 54Ω
R = 54Ω
t
t
55
50
45
1.88
1.87
1.86
1.85
1.84
1.83
40
35
30
25
20
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
-60 -40 -20
0
20 40 60 80 100
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
DRIVER OUTPUT CURRENT
vs. DIFFERENTIAL OUTPUT VOLTAGE
OUTPUT CURRENT vs.
DRIVER OUTPUT LOW VOLTAGE
OUTPUT CURRENT vs.
DRIVER OUTPUT HIGH VOLTAGE
100
140
120
-100
-90
-80
-70
10
1
100
-60
-50
80
60
-40
-30
40
20
0
0.1
-20
-10
0
0.01
0
1
2
3
4
5
0
2
4
6
8
10
12
-8
-6
-4
-2
0
2
4
6
DIFFERENTIAL OUTPUT VOLTAGE (V)
OUTPUT LOW VOLTAGE (V)
OUTPUT HIGH VOLTAGE (V)
8
_______________________________________________________________________________________
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
Typical Operating Characteristics (continued)
(k
CC
= +1k, T = +21°C, unꢀeoo ꢂcherwtoe nꢂceꢃ.)
A
RECEIVER PROPAGATION DELAY
MAX3086E/MAX3087E/MAX3088E AND MAX3089E
RECEIVER PROPAGATION DELAY
MAX3080E–MAX3085E AND MAX3089E
WITH SRL = GND
WITH SRL = OPEN OR V
CC
MAX3080/3089 TYP-18
MAX3080/3089 TYP-17
V - V
2V/div
5V/div
A
B
V - V
2V/div
5V/div
A
B
RO
RO
50ns/div
50ns/div
DRIVER PROPAGATION DELAY
MAX3080E/MAX3081E/MAX3082E AND MAX3089E
WITH SRL = OPEN
MAX3080/3089 TYP-20
DI
5V/div
V - V
2.5V/div
Y
Z
2µs/div
DRIVER PROPAGATION DELAY
MAX3086E/MAX3087E/MAX3088E AND MAX3089E
DRIVER PROPAGATION DELAY
MAX3083E/MAX3084E/MAX3085E AND MAX3089E
WITH SRL = GND
WITH SRL = V
CC
MAX3080/3089 TYP-22
MAX3080/3089 TYP-21
DI
5V/div
DI
5V/div
V - V
Y Z
2.5V/div
V - V
2.5V/div
Y
Z
50ns/div
500ns/div
_______________________________________________________________________________________
9
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
Pin Description
PIN
MAX3080E MAX3081E MAX3082E
MAX3083E MAX3084E MAX3085E
MAX3086E MAX3087E MAX3088E
MAX3089E
NAME
FUNCTION
HALF-
FULL-DUPLEX
DUPLEX
FULL-
DUPLEX DUPLEX
MODE
HALF-
DEVICES
DEVICES
MODE
Haꢀf/Fuꢀꢀ-Dupꢀex Seꢀeꢁcꢂr Ptn. Cꢂnneꢁc H/F cꢂ k
ꢃupꢀex mꢂꢃe; ꢁꢂnneꢁc cꢂ GND ꢂr ꢀeave unꢁꢂnneꢁceꢃ fꢂr
fuꢀꢀ-ꢃupꢀex mꢂꢃe.
fꢂr haꢀf-
CC
—
2
—
2
—
±
±
±
H/F
Reꢁetver Oucpuc. When RE to ꢀꢂw anꢃ tf A - B ≥ -10mk,
RO wtꢀꢀ be htgh; tf A - B ≤ -200mk, RO wtꢀꢀ be ꢀꢂw.
2
3
2
3
RO
Reꢁetver Oucpuc Enabꢀe. Drtve RE ꢀꢂw cꢂ enabꢀe RO; RO
to htgh tmpeꢃanꢁe when RE to htgh. Drtve RE htgh anꢃ
DE ꢀꢂw cꢂ encer ꢀꢂw-pꢂwer ohucꢃꢂwn mꢂꢃe.
3
4
—
—
2
3
RE
Drtver Oucpuc Enabꢀe. Drtve DE htgh cꢂ enabꢀe ꢃrtver ꢂuc-
puco. Theoe ꢂucpuco are htgh tmpeꢃanꢁe when DE to ꢀꢂw.
Drtve RE htgh anꢃ DE ꢀꢂw cꢂ encer ꢀꢂw-pꢂwer ohucꢃꢂwn
mꢂꢃe.
4
4
DE
Drtver Inpuc. Wtch DE htgh, a ꢀꢂw ꢂn DI fꢂrꢁeo nꢂntnverctng
ꢂucpuc ꢀꢂw anꢃ tnverctng ꢂucpuc htgh. Stmtꢀarꢀy, a htgh ꢂn DI
fꢂrꢁeo nꢂn-tnverctng ꢂucpuc htgh anꢃ tnverctng ꢂucpuc ꢀꢂw.
1
3
4
1
6
1
6
DI
Sꢀew-Race-Ltmtc Seꢀeꢁcꢂr Ptn. Cꢂnneꢁc SRL cꢂ GND fꢂr
±0Mbpo ꢁꢂmmuntꢁactꢂn race; ꢁꢂnneꢁc cꢂ k
fꢂr
CC
—
—
—
SRL
1005bpo ꢁꢂmmuntꢁactꢂn race. Leave unꢁꢂnneꢁceꢃ fꢂr
±±15bpo ꢁꢂmmuntꢁactꢂn race.
6, 7
—
4
1
7
8
7
8
GND
TXP
Grꢂunꢃ
Tranomtccer Phaoe. Cꢂnneꢁc TXP cꢂ GND, ꢂr ꢀeave fꢀꢂactng
fꢂr nꢂrmaꢀ cranomtccer phaoe/pꢂꢀartcy. Cꢂnneꢁc cꢂ k
—
—
cꢂ
CC
tnverc che cranomtccer phaoe/pꢂꢀartcy.
9
1
—
—
9
—
9
Y
Y
Nꢂntnverctng Drtver Oucpuc
Nꢂntnverctng Reꢁetver Inpuc anꢃ Nꢂntnverctng Drtver
Oucpuc*
—
—
—
±0
—
±±
—
—
6
—
—
—
—
7
±0
—
±±
—
—
—
±0
—
±±
—
Z
Z
B
B
B
Inverctng Drtver Oucpuc
—
7
Inverctng Reꢁetver Inpuc anꢃ Inverctng Drtver Oucpuc*
Inverctng Reꢁetver Inpuc
—
—
Reꢁetver Inpuc Reotocꢂro*
Inverctng Reꢁetver Inpuc anꢃ Inverctng Drtver Oucpuc
10 ______________________________________________________________________________________
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
Pin Description (continued)
PIN
MAX3080E MAX3081E MAX3082E
MAX3083E MAX3084E MAX3085E
MAX3086E MAX3087E MAX3088E
MAX3089E
NAME
FUNCTION
HALF-
FULL-
DUPLEX
MODE
HALF-
DUPLEX
MODE
FULL-DUPLEX
DUPLEX
DEVICES
DEVICES
±2
—
8
—
—
±2
—
—
A
A
Nꢂntnverctng Reꢁetver Inpuc
—
±2
Reꢁetver Inpuc Reotocꢂro*
Nꢂntnverctng Reꢁetver Inpuc anꢃ Nꢂntnverctng Drtver
Oucpuc
—
—
6
—
—
A
Reꢁetver Phaoe. Cꢂnneꢁc RXP cꢂ GND, ꢂr ꢀeave unꢁꢂn-
neꢁceꢃ fꢂr nꢂrmaꢀ cranomtccer phaoe/pꢂꢀartcy. Cꢂnneꢁc cꢂ
—
—
—
±3
±3
RXP
k
cꢂ tnverc che reꢁetver phaoe/pꢂꢀartcy:
CC
±4
±
8
±4
—
±4
—
k
Pꢂotctve Suppꢀy 4.71k ≤ k
≤ 1.21k
CC
CC
±, 8, ±3
—
—
N.C.
Nꢂc Cꢂnneꢁceꢃ. Nꢂc tncernaꢀꢀy ꢁꢂnneꢁceꢃ.
*(MAX3089E only) In half-duplex mode, the driver outputs serve as receiver inputs. The full-duplex receiver inputs (A and B) will still
have a 1/8-unit load, but are not connected to the receiver.
Function Tables
MAX3080E/MAX3083E/MAX3086E
TRANSMITTING
MAX3081E/MAX3084E/MAX3087E
TRANSMITTING
INPUT
OUTPUTS
INPUTS
OUTPUTS
DI
±
Z
0
±
Y
±
0
DE
±
DI
±
Z
0
±
Y
RE
X
±
0
0
X
±
0
0
0
X
X
Htgh-Z
Htgh-Z
±
0
Shucꢃꢂwn
RECEIVING
INPUTS
OUTPUT
A-B
≥ -0.01k
RO
±
RECEIVING
INPUTS
OUTPUT
≤ -0.2k
0
DE
X
A-B
RO
RE
Open/ohꢂrceꢃ
±
0
0
0
±
±
≥ -0.01k
±
X
≤ -0.2k
0
±
X
Open/ohꢂrceꢃ
±
X
X
Htgh-Z
Shucꢃꢂwn
0
X = Dꢂn’c ꢁare
Shucꢃꢂwn mꢂꢃe, ꢃrtver anꢃ reꢁetver ꢂucpuco htgh tmpeꢃanꢁe
______________________________________________________________________________________ 11
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
Function Tables (continued)
MAX3082E/MAX3085E/MAX3088E
MAX3089E
TRANSMITTING
INPUTS
DE
TRANSMITTING
INPUTS
OUTPUTS
OUTPUTS
TXP
0
DI
±
Z
Y
RE
X
DE
±
DI
±
B/Z
A/Y
RE
X
±
±
±
±
0
0
0
±
0
±
±
0
0
X
0
±
0
X
±
0
±
X
±
±
0
0
±
0
0
X
X
Htgh-Z
Htgh-Z
±
X
0
±
0
Shucꢃꢂwn
X
0
X
X
Htgh-Z
Htgh-Z
X
±
Shucꢃꢂwn
RECEIVING
INPUTS
OUTPUT
DE
X
A-B
RO
RE
RECEIVING
INPUTS
0
0
0
±
±
≥ -0.01k
±
OUTPUT
X
≤ -0.2k
0
±
RXP
0
DE
X
X
X
X
0
A-B
≥ -0.01k
≤ -0.2k
≥ -0.01k
≤ -0.2k
X
Y-Z
X
RO
±
H/F
0
RE
X
Open/ohꢂrceꢃ
0
0
0
0
0
0
0
0
±
X
X
Htgh-Z
Shucꢃꢂwn
0
0
X
0
0
0
±
X
0
0
±
X
±
X = Dꢂn’c ꢁare
±
0
≥ -0.01k
≤ -0.2k
≥ -0.01k
≤ -0.2k
±
Shucꢃꢂwn mꢂꢃe, ꢃrtver anꢃ reꢁetver ꢂucpuco htgh tmpeꢃanꢁe
±
0
0
X
0
±
±
0
X
0
±
±
0
X
±
Open/
ohꢂrceꢃ
0
±
0
±
0
0
±
±
0
0
0
0
X
0
X
0
X
±
±
0
0
Open/
ohꢂrceꢃ
X
Open/
ohꢂrceꢃ
X
Open/
ohꢂrceꢃ
X
X
X
X
X
±
±
±
0
X
X
X
X
Htgh-Z
Shucꢃꢂwn
12 ______________________________________________________________________________________
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
V
CC
TOP VIEW
DE
V
CC
RE
0.1µF
4
14
MAX3080E
MAX3083E
MAX3086E
N.C.
RO
1
2
3
4
5
6
7
14
V
CC
9
Y
R
13 N.C.
5
Rt
DI
RO
DI
D
R
10
RE
12
11
10
9
A
Z
DE
B
12
11
A
2
Rt
DI
Z
RO
NC
R
D
D
GND
GND
Y
B
1, 8, 13
8
N.C.
3
6, 7
GND
RE
DIP/SO
GND DE
Figure 1. MAX3080E/MAX3083E/MAX3086E Pin Configuration and Typical Full-Duplex Operating Circuit
TOP VIEW
0.1µF
V
CC
MAX3081E
MAX3084E
MAX3087E
V
1
CC
Y
Z
5
6
3
2
Rt
DI
RO
D
R
V
1
2
3
4
R
8
7
6
5
A
B
Z
Y
CC
RO
DI
8
7
A
B
Rt
RO
DI
R
D
GND
D
DIP/SO
4
GND
GND
Figure 2. MAX3081E/MAX3084E/MAX3087E Pin Configuration and Typical Full-Duplex Operating Circuit
TOP VIEW
0.1µF
MAX3082E
MAX3085E
MAX3088E
DE
D
8
7
1
DI
R
R
RO
RE
DE
DI
1
2
3
4
RO
RE
DE
DI
8
7
6
5
V
CC
V
CC
2
3
B
B
A
B
Rt
Rt
6 A
5
A
RO
4
R
D
D
GND
GND
RE
NOTE: PIN LABELS Y AND Z ON TIMING, TEST, AND WAVEFORM DIAGRAMS. REFER TO PINS A AND B WHEN DE IS HIGH.
DIP/SO
Figure 3. MAX3082E/MAX3085E/MAX3088E Pin Configuration and Typical Half-Duplex Operating Circuit
______________________________________________________________________________________ 13
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
che cermtnactꢂn. Wtch che reꢁetver chreohꢂꢀꢃo ꢂf che
Detailed Description
MAX3080E famtꢀy, chto reouꢀco tn a ꢀꢂgtꢁ htgh wtch a
The MAX3080E–MAX3089E htgh-opeeꢃ cranoꢁetvero fꢂr
10mk mtntmum nꢂtoe margtn. Unꢀt5e prevtꢂuo fatꢀ-oafe
RS-481/RS-422 ꢁꢂmmuntꢁactꢂn ꢁꢂncatn ꢂne ꢃrtver anꢃ
ꢃevtꢁeo, che -10mk cꢂ -200mk chreohꢂꢀꢃ ꢁꢂmpꢀteo wtch
ꢂne reꢁetver. Theoe ꢃevtꢁeo feacure fatꢀ-oafe ꢁtrꢁutcry,
che ±200mk EIA/TIA-481 ocanꢃarꢃ.
whtꢁh guaranceeo a ꢀꢂgtꢁ-htgh reꢁetver ꢂucpuc when che
reꢁetver tnpuco are ꢂpen ꢂr ohꢂrceꢃ, ꢂr when chey are
ꢁꢂnneꢁceꢃ cꢂ a cermtnaceꢃ cranomtootꢂn ꢀtne wtch aꢀꢀ
ꢃrtvero ꢃtoabꢀeꢃ (oee che Fail-Safe oeꢁctꢂn). The
MAX3080E/MAX308±E/MAX3082E feacure reꢃuꢁeꢃ
oꢀew-race ꢃrtvero chac mtntmtze EMI anꢃ reꢃuꢁe refꢀeꢁ-
ctꢂno ꢁauoeꢃ by tmprꢂperꢀy cermtnaceꢃ ꢁabꢀeo, aꢀꢀꢂwtng
errꢂr-free ꢃaca cranomtootꢂn up cꢂ ±±15bpo (oee che
Reduced EMI and Reflections oeꢁctꢂn). The
MAX3083E/MAX3084E/MAX3081E ꢂffer htgher ꢃrtver
ꢂucpuc oꢀew-race ꢀtmtco, aꢀꢀꢂwtng cranomtc opeeꢃo up cꢂ
1005bpo. The MAX3086E/MAX3087E/MAX3088E’o ꢃrt-
ver oꢀew raceo are nꢂc ꢀtmtceꢃ, ma5tng cranomtc opeeꢃo
up cꢂ ±0Mbpo pꢂootbꢀe. The MAX3089E’o oꢀew race to
oeꢀeꢁcabꢀe becween ±±15bpo, 1005bpo, anꢃ ±0Mbpo
by ꢃrtvtng a oeꢀeꢁcꢂr ptn wtch a chree-ocace ꢃrtver.
MAX3089E Programming
The MAX3089E hao oeveraꢀ prꢂgrammabꢀe ꢂperactng
mꢂꢃeo. Tranomtccer rtoe anꢃ faꢀꢀ ctmeo are prꢂgramma-
bꢀe becween 2100no, 710no, anꢃ 21no, reouꢀctng tn
maxtmum ꢃaca raceo ꢂf ±±15bpo, 1005bpo, anꢃ
±0Mbpo, reopeꢁctveꢀy. Tꢂ oeꢀeꢁc che ꢃeotreꢃ ꢃaca race,
ꢃrtve SRL cꢂ ꢂne ꢂf chree pꢂootbꢀe ocaceo by uotng a
chree-ocace ꢃrtver, by ꢁꢂnneꢁctng tc cꢂ k
ꢂr GND, ꢂr
CC
by ꢀeavtng tc unꢁꢂnneꢁceꢃ. Fꢂr ±±15bpo ꢂperactꢂn, oec
che chree-ocace ꢃevtꢁe tn htgh-tmpeꢃanꢁe mꢂꢃe ꢂr
ꢀeave SRL unꢁꢂnneꢁceꢃ. Fꢂr 1005bpo ꢂperactꢂn, ꢃrtve
SRL htgh ꢂr ꢁꢂnneꢁc tc cꢂ k . Fꢂr ±0Mbpo ꢂperactꢂn,
CC
ꢃrtve SRL ꢀꢂw ꢂr ꢁꢂnneꢁc tc cꢂ GND. SRL ꢁan be
ꢁhangeꢃ ꢃurtng ꢂperactꢂn wtchꢂuc tncerrupctng ꢃaca
ꢁꢂmmuntꢁactꢂno.
The MAX3082E/MAX3081E/MAX3088E are haꢀf-ꢃupꢀex
cranoꢁetvero, whtꢀe che MAX3080E/MAX308±E/
MAX3083E/MAX3084E/MAX3086E/MAX3087E are fuꢀꢀ-
ꢃupꢀex cranoꢁetvero. The MAX3089E to oeꢀeꢁcabꢀe
becween haꢀf- anꢃ fuꢀꢀ-ꢃupꢀex ꢁꢂmmuntꢁactꢂn by ꢃrtvtng
a oeꢀeꢁcꢂr ptn htgh ꢂr ꢀꢂw, reopeꢁctveꢀy.
Oꢁꢁaotꢂnaꢀꢀy, cwtoceꢃ-patr ꢀtneo are ꢁꢂnneꢁceꢃ baꢁ5-
warꢃ frꢂm nꢂrmaꢀ ꢂrtencactꢂn. The MAX3089E hao cwꢂ
ptno chac tnverc che phaoe ꢂf che ꢃrtver anꢃ che reꢁetver
cꢂ ꢁꢂrreꢁc fꢂr chto prꢂbꢀem. Fꢂr nꢂrmaꢀ ꢂperactꢂn, ꢃrtve
TXP anꢃ RXP ꢀꢂw, ꢁꢂnneꢁc chem cꢂ grꢂunꢃ, ꢂr ꢀeave
chem unꢁꢂnneꢁceꢃ (tncernaꢀ puꢀꢀꢃꢂwn). Tꢂ tnverc che ꢃrt-
ver phaoe, ꢃrtve TXP htgh ꢂr ꢁꢂnneꢁc tc cꢂ k . Tꢂ
CC
Aꢀꢀ ꢂf cheoe parco ꢂperace frꢂm a otngꢀe +1k ouppꢀy.
Drtvero are ꢂucpuc ohꢂrc-ꢁtrꢁutc ꢁurrenc ꢀtmtceꢃ. Thermaꢀ
ohucꢃꢂwn ꢁtrꢁutcry prꢂceꢁco ꢃrtvero agatnoc exꢁeootve
pꢂwer ꢃtootpactꢂn. When aꢁctvaceꢃ, che chermaꢀ ohuc-
ꢃꢂwn ꢁtrꢁutcry pꢀaꢁeo che ꢃrtver ꢂucpuco tncꢂ a htgh-
tmpeꢃanꢁe ocace.
tnverc che reꢁetver phaoe, ꢃrtve RXP htgh ꢂr ꢁꢂnneꢁc tc
cꢂ k . Nꢂce chac che reꢁetver chreohꢂꢀꢃ to pꢂotctve
CC
when RXP to htgh.
The MAX3089E ꢁan ꢂperace tn fuꢀꢀ- ꢂr haꢀf-ꢃupꢀex
mꢂꢃe. Drtve che H/F ptn ꢀꢂw, ꢀeave tc unꢁꢂnneꢁceꢃ
(tncernaꢀ puꢀꢀꢃꢂwn), ꢂr ꢁꢂnneꢁc tc cꢂ GND fꢂr fuꢀꢀ-ꢃupꢀex
ꢂperactꢂn, anꢃ ꢃrtve tc htgh fꢂr haꢀf-ꢃupꢀex ꢂperactꢂn. In
fuꢀꢀ-ꢃupꢀex mꢂꢃe, che ptn ꢁꢂnftguractꢂn ꢂf che ꢃrtver anꢃ
reꢁetver to che oame ao chac ꢂf a MAX3080E (Ftgure 4).
In haꢀf-ꢃupꢀex mꢂꢃe, che reꢁetver tnpuco are owtcꢁheꢃ cꢂ
che ꢃrtver ꢂucpuco, ꢁꢂnneꢁctng ꢂucpuco Y anꢃ Z cꢂ tnpuco
A anꢃ B, reopeꢁctveꢀy. In haꢀf-ꢃupꢀex mꢂꢃe, che tncernaꢀ
fuꢀꢀ-ꢃupꢀex reꢁetver tnpuc reotocꢂro are octꢀꢀ ꢁꢂnneꢁceꢃ cꢂ
ptno ±± anꢃ ±2.
Receiver Input Filtering
The reꢁetvero ꢂf che MAX3080E–MAX3081E, anꢃ che
MAX3089E when ꢂperactng tn ±±15bpo ꢂr 1005bpo
mꢂꢃe, tnꢁꢂrpꢂrace tnpuc ftꢀcertng tn aꢃꢃtctꢂn cꢂ tnpuc
hyocereoto. Thto ftꢀcertng enhanꢁeo nꢂtoe tmmuntcy wtch
ꢃtfferenctaꢀ otgnaꢀo chac have very oꢀꢂw rtoe anꢃ faꢀꢀ
ctmeo. Reꢁetver prꢂpagactꢂn ꢃeꢀay tnꢁreaoeo by 20%
ꢃue cꢂ chto ftꢀcertng.
Fail-Safe
The MAX3080E famtꢀy guarantees a ꢀꢂgtꢁ-htgh reꢁetver
ꢂucpuc when che reꢁetver tnpuco are ohꢂrceꢃ ꢂr ꢂpen, ꢂr
when chey are ꢁꢂnneꢁceꢃ cꢂ a cermtnaceꢃ cranomtootꢂn
ꢀtne wtch aꢀꢀ ꢃrtvero ꢃtoabꢀeꢃ. Thto to ꢃꢂne by oecctng che
reꢁetver chreohꢂꢀꢃ becween -10mk anꢃ -200mk. If che
ꢃtfferenctaꢀ reꢁetver tnpuc vꢂꢀcage (A-B) to greacer chan
ꢂr equaꢀ cꢂ -10mk, RO to ꢀꢂgtꢁ htgh. If A-B to ꢀeoo chan
ꢂr equaꢀ cꢂ -200mk, RO to ꢀꢂgtꢁ ꢀꢂw. In che ꢁaoe ꢂf a
cermtnaceꢃ buo wtch aꢀꢀ cranomtccero ꢃtoabꢀeꢃ, che
reꢁetver’o ꢃtfferenctaꢀ tnpuc vꢂꢀcage to puꢀꢀeꢃ cꢂ 0k by
±±15k ESD Protection
Ao wtch aꢀꢀ Maxtm ꢃevtꢁeo, ESD-prꢂceꢁctꢂn ocruꢁcureo
are tnꢁꢂrpꢂraceꢃ ꢂn aꢀꢀ ptno cꢂ prꢂceꢁc agatnoc eꢀeꢁcrꢂ-
ocactꢁ ꢃtoꢁhargeo enꢁꢂuncereꢃ ꢃurtng hanꢃꢀtng anꢃ
aooembꢀy. The ꢃrtver ꢂucpuco anꢃ reꢁetver tnpuco ꢂf che
MAX3080E–MAX3089E famtꢀy have excra prꢂceꢁctꢂn
agatnoc ocactꢁ eꢀeꢁcrtꢁtcy. Maxtm’o engtneero have
ꢃeveꢀꢂpeꢃ ocace-ꢂf-che-arc ocruꢁcureo cꢂ prꢂceꢁc cheoe
ptno agatnoc ESD ꢂf ±±15k wtchꢂuc ꢃamage.
14 ______________________________________________________________________________________
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
V
CC
RE
MAX3089E
A
B
RD
TOP VIEW
H/F
RO
1
2
3
4
5
6
7
14
V
CC
RXP
13 RXP
RE
12
11
10
9
A
MAX3089E
DE
B
H/F
Z
DI
Z
TXP
SRL
GND
Y
8
TXP
DIP/SO
Y
DI
NOTE: SWITCH POSITIONS
INDICATED FOR H/F = GND
GND DE
SRL
Figure 4. MAX3089E Pin Configuration and Functional Diagram
Y
1k
TEST POINT
R
RECEIVER
OUTPUT
V
CC
S1
S2
C
RL
V
OD
1k
15pF
R
V
OC
Z
Figure 5. Driver DC Test Load
Figure 6. Receiver Enable/Disable Timing Test Load
The ESD-prꢂceꢁceꢃ ptno are ceoceꢃ wtch referenꢁe cꢂ che
grꢂunꢃ ptn tn a pꢂwereꢃ-ꢃꢂwn ꢁꢂnꢃtctꢂn. They are ceoc-
eꢃ cꢂ ±±15k uotng che Human Bꢂꢃy Mꢂꢃeꢀ.
ꢁhargeꢃ tncꢂ a ꢀꢂw tmpeꢃanꢁe. Thto mꢂꢃeꢀ ꢁꢂnotoco ꢂf
a ±00pF ꢁapaꢁtcꢂr ꢁhargeꢃ cꢂ che ESD vꢂꢀcage ꢂf tncer-
eoc, whtꢁh to chen ꢃtoꢁhargeꢃ tncꢂ che ceoc ꢃevtꢁe
chrꢂugh a ±.15Ω reotocꢂr.
ESD Test Conditions
ESD perfꢂrmanꢁe ꢃepenꢃo ꢂn a vartecy ꢂf ꢁꢂnꢃtctꢂno.
Cꢂncaꢁc Maxtm fꢂr a reꢀtabtꢀtcy repꢂrc chac ꢃꢂꢁumenco
ceoc oecup, ceoc mechꢂꢃꢂꢀꢂgy, anꢃ ceoc reouꢀco.
Machine Model
The Maꢁhtne Mꢂꢃeꢀ fꢂr ESD ceoco aꢀꢀ ptno uotng a
200pF ocꢂrage ꢁapaꢁtcꢂr anꢃ zerꢂ ꢃtoꢁharge reoto-
canꢁe. The ꢂbjeꢁctve to cꢂ emuꢀace che ocreoo ꢁauoeꢃ
when I/O ptno are ꢁꢂncaꢁceꢃ by hanꢃꢀtng equtpmenc
ꢃurtng ceoc anꢃ aooembꢀy. Aꢀꢀ ptno requtre chto prꢂceꢁ-
Human Body Model
Ftgure ±4a ohꢂwo che Human Bꢂꢃy Mꢂꢃeꢀ, anꢃ Ftgure
±4b ohꢂwo che ꢁurrenc wavefꢂrm tc generaceo when ꢃto-
______________________________________________________________________________________ 15
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
3V
DE
C
L1
V
CC
Y
Z
S1
S2
R
DIFF
DI
500Ω
V
OD2
OUTPUT
UNDER TEST
C
L
C
L2
Figure 7. Driver Timing Test Circuit
Figure 8. Driver Enable and Disable Timing Test Load
5V
5V
DE
DI
1.5V
1.5V
1.5V
1.5V
0
0
t
t
DPHL
DPLH
1/2 V
O
t
t
, t
DLZ
DZL(SHDN) DZL
Z
Y, Z
V
O
2.3V
V
V
+0.5V
-0.5V
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
OL
V
OL
Y
1/2 V
O
V
= V (Y) - V (Z)
DIFF
Y, Z
V
O
0
O
V
DIFF
2.3V
OH
90%
90%
10%
10%
0
-V
t
, t
t
DHZ
t
DR
t
DZH(SHDN) DZH
DF
t
t
- t
SKEW = | DPLH DPHL |
Figure 9. Driver Propagation Delays
Figure 10. Driver Enable and Disable Times (Except
MAX3081E/MAX3084E/MAX3087E)
5V
RE
1.5V
1.5V
0
V
OH
t
t
, t
RO
RLZ
RZL(SHDN) RZL
1.5V
1.5V
V
OUTPUT
OL
V
CC
RO
1.5V
V
V
+ 0.5V
- 0.5V
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
OL
t
t
RPLH
RPHL
A
B
1V
-1V
INPUT
RO
1.5V
OH
0
t
, t
t
RHZ
RZH(SHDN) RZH
Figure 11. Receiver Propagation Delays
Figure 12. Receiver Enable and Disable Times (Except
MAX3081E/MAX3084E/MAX3087E)
16 ______________________________________________________________________________________
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
R
R
C
D
1MΩ
1500Ω
DISCHARGE
RESISTANCE
CHARGE-CURRENT
LIMIT RESISTOR
B
A
RECEIVER
OUTPUT
HIGH-
VOLTAGE
DC
DEVICE
UNDER
TEST
V
ID
R
ATE
C
s
100pF
STORAGE
CAPACITOR
SOURCE
Figure 13. Receiver Propagation Delay Test Circuit
Figure 14a. Human Body ESD Test Model
I
P
100%
90%
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
I
r
AMPERES
36.8%
20dB/div
10%
0
TIME
0
t
RL
t
DL
CURRENT WAVEFORM
0Hz
100kHz/div
1MHz
Figure 14b. Human Body Current Waveform
Figure 15. Driver Output Waveform and FFT Plot of
MAX3086E/MAX3087E/MAX3088E, and MAX3089E with
SRL = GND, Transmitting a 20kHz Signal
A
B
A
B
20dB/div
20dB/div
0Hz
100kHz/div
1MHz
0Hz
100kHz/div
1MHz
Figure 16. Driver Output Waveform and FFT Plot of
MAX3083E/MAX3084E/MAX3085E, and MAX3089E
Figure 17. Driver Output Waveform and FFT Plot of
MAX3080E/MAX3081E/MAX3082E, and MAX3089E
with SRL = Unconnected, Transmitting a 20kHz Signal
with SRL = V
Transmitting a 20kHz Signal
CC,
______________________________________________________________________________________ 17
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
MAX3080/3089 FIG-18
MAX3080E/MAX3081E/MAX3083E/
MAX3084E/MAX3086E/MAX3087E/
DI
5V/div
MAX3089E (FULL DUPLEX)
A
B
120Ω
RO
RE
R
DATA IN
DE
V - V
1V/div
5V/div
A
B
Z
DI
120Ω
DATA OUT
D
Y
RO
5µs/div
NOTE: RE AND DE ON MAX3080E/MAX3083E/MAX3086E/MAX3089E ONLY.
Figure 18. Line Repeater for MAX3080E/MAX3081E/MAX3083E/
MAX3084E/MAX3086E/MAX3087E, and MAX3089E in Full-Duplex
Mode
Figure 19. MAX3080E/MAX3081E/MAX3082E, and MAX3089E
with SRL = Unconnected, System Differential Voltage at 50kHz
Driving 4000ft of Cable
ꢃurtng ceoc anꢃ aooembꢀy. Aꢀꢀ ptno requtre chto prꢂceꢁ-
ctꢂn, nꢂc juoc RS-481 tnpuco anꢃ ꢂucpuco.
Ftgure ±7’o htgh-frequenꢁy harmꢂntꢁ ꢁꢂmpꢂnenco are
even ꢀꢂwer.
In generaꢀ, a cranomtccer’o rtoe ctme reꢀaceo ꢃtreꢁcꢀy cꢂ che
ꢀengch ꢂf an uncermtnaceꢃ ocub, whtꢁh ꢁan be ꢃrtven wtch
ꢂnꢀy mtnꢂr wavefꢂrm refꢀeꢁctꢂno. The fꢂꢀꢀꢂwtng equactꢂn
expreooeo chto reꢀactꢂnohtp ꢁꢂnoervactveꢀy:
Applications Information
216 Transceivers on the Bus
The ocanꢃarꢃ RS-481 reꢁetver tnpuc tmpeꢃanꢁe to ±25Ω
(ꢂne-untc ꢀꢂaꢃ), anꢃ che ocanꢃarꢃ ꢃrtver ꢁan ꢃrtve up cꢂ
32 untc ꢀꢂaꢃo. The MAX3080E famtꢀy ꢂf cranoꢁetvero
have a ±/8-untc-ꢀꢂaꢃ reꢁetver tnpuc tmpeꢃanꢁe (965Ω),
aꢀꢀꢂwtng up cꢂ 216 cranoꢁetvero cꢂ be ꢁꢂnneꢁceꢃ tn par-
aꢀꢀeꢀ ꢂn ꢂne ꢁꢂmmuntꢁactꢂn ꢀtne. Any ꢁꢂmbtnactꢂn ꢂf
cheoe ꢃevtꢁeo anꢃ/ꢂr ꢂcher RS-481 cranoꢁetvero wtch a
cꢂcaꢀ ꢂf 32 untc ꢀꢂaꢃo ꢂr ꢀeoo ꢁan be ꢁꢂnneꢁceꢃ cꢂ che
ꢀtne.
Lengch = c
/ (±0 x ±.1no/fc)
RISE
where c
to che cranomtccer’o rtoe ctme.
RISE
Fꢂr exampꢀe, che MAX3080E’o rtoe ctme to cyptꢁaꢀꢀy
±320no, whtꢁh reouꢀco tn exꢁeꢀꢀenc wavefꢂrmo wtch a ocub
ꢀengch up cꢂ 90 feec. A oyocem ꢁan wꢂr5 weꢀꢀ wtch ꢀꢂnger
uncermtnaceꢃ ocubo, even wtch oevere refꢀeꢁctꢂno, tf che
wavefꢂrm oeccꢀeo ꢂuc befꢂre che UART oampꢀeo chem.
Low-Power Shutdown Mode
(Except MAX3082E/MAX3081E/MAX3088E)
Lꢂw-pꢂwer ohucꢃꢂwn mꢂꢃe to tntctaceꢃ by brtngtng bꢂch
RE htgh anꢃ DE ꢀꢂw. In ohucꢃꢂwn, che ꢃevtꢁeo cyptꢁaꢀꢀy
ꢃraw ꢂnꢀy ±nA ꢂf ouppꢀy ꢁurrenc.
Reduced EMI and Reflections
The MAX3080E–MAX3081E, anꢃ MAX3089E wtch SRL =
CC
k
ꢂr unꢁꢂnneꢁceꢃ, are oꢀew-race ꢀtmtceꢃ, mtntmtztng
EMI anꢃ reꢃuꢁtng refꢀeꢁctꢂno ꢁauoeꢃ by tmprꢂperꢀy cer-
mtnaceꢃ ꢁabꢀeo. Ftgure ±1 ohꢂwo che ꢃrtver ꢂucpuc
wavefꢂrm anꢃ tco Fꢂurter anaꢀyoto ꢂf a 205Hz otgnaꢀ
cranomtcceꢃ by a MAX3086E/MAX3087E/MAX3088E,
anꢃ MAX3089E wtch SRL = GND. Htgh-frequenꢁy har-
mꢂntꢁ ꢁꢂmpꢂnenco wtch ꢀarge ampꢀtcuꢃeo are evtꢃenc.
Ftgure ±6 ohꢂwo che oame otgnaꢀ ꢃtopꢀayeꢃ fꢂr a
MAX3083E/MAX3084E/MAX3081E, anꢃ MAX3089E wtch
SRL = kCC), cranomtcctng unꢃer che oame ꢁꢂnꢃtctꢂno.
Ftgure ±6’o htgh-frequenꢁy harmꢂntꢁ ꢁꢂmpꢂnenco are
muꢁh ꢀꢂwer tn ampꢀtcuꢃe, ꢁꢂmpareꢃ wtch Ftgure ±1’o,
anꢃ che pꢂcenctaꢀ fꢂr EMI to otgntftꢁancꢀy reꢃuꢁeꢃ. Ftgure
±7 ohꢂwo che oame otgnaꢀ ꢃtopꢀayeꢃ fꢂr a MAX3080E/
MAX308±E/MAX3082E, anꢃ MAX3089E wtch SRL =
unꢁꢂnneꢁceꢃ, cranomtcctng unꢃer che oame ꢁꢂnꢃtctꢂno.
RE anꢃ DE may be ꢃrtven otmuꢀcaneꢂuoꢀy; che parco are
guaranceeꢃ nꢂc cꢂ encer ohucꢃꢂwn tf RE to htgh anꢃ DE
to ꢀꢂw fꢂr ꢀeoo chan 10no. If che tnpuco are tn chto ocace
fꢂr ac ꢀeaoc 600no, che parco are guaranceeꢃ cꢂ encer
ohucꢃꢂwn.
Enabꢀe ctmeo c
anꢃ c
tn che Switching Char-
ZL
ZH
acteristics cabꢀeo aooume che parc wao nꢂc tn a ꢀꢂw-
pꢂwer ohucꢃꢂwn ocace. Enabꢀe ctmeo c anꢃ
ZH(SHDN)
c
aooume che parco were ohuc ꢃꢂwn. Ic ca5eo
ZL(SHDN)
ꢃrtvero anꢃ reꢁetvero ꢀꢂnger cꢂ beꢁꢂme enabꢀeꢃ frꢂm
ꢀꢂw-pꢂwer ohucꢃꢂwn mꢂꢃe (c , c ) chan
ZH(SHDN) ZH(SHDN)
frꢂm ꢃrtver/reꢁetver-ꢃtoabꢀe mꢂꢃe (c , c ).
ZH ZL
18 ______________________________________________________________________________________
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
MAX3080/3089 FIG-20
MAX3080/3089 FIG-19
DI
5V/div
DI
5V/div
V - V
1V/div
5V/div
V - V
1V/div
5V/div
A
B
A
B
RO
RO
1µs/div
2µs/div
Figure 20. MAX3083E/MAX3084E/MAX3085E, and MAX3089E
Figure 21. MAX3086E/MAX3087E/MAX3088E, and MAX3089E
with SRL = GND, System Differential Voltage at 200kHz Driving
4000ft of Cable
with SRL = V
System Differential Voltage at 50kHz Driving
CC,
4000ft of Cable
120Ω
120Ω
DE
B
B
DI
D
D
DI
DE
B
A
A
B
A
A
RO
RE
RO
RE
R
R
R
R
D
D
MAX3082E
MAX3085E
MAX3088E
DI
DE
RO RE
DI
DE RO RE
MAX3089E (HALF-DUPLEX)
Figure 22. Typical Half-Duplex RS-485 Network
Driver Output Protection
Twꢂ meꢁhantomo prevenc exꢁeootve ꢂucpuc ꢁurrenc anꢃ
pꢂwer ꢃtootpactꢂn ꢁauoeꢃ by fauꢀco ꢂr by buo ꢁꢂn-
cenctꢂn. The ftroc, a fꢂꢀꢃbaꢁ5 ꢁurrenc ꢀtmtc ꢂn che ꢂucpuc
ocage, prꢂvtꢃeo tmmeꢃtace prꢂceꢁctꢂn agatnoc ohꢂrc ꢁtr-
ꢁutco ꢂver che whꢂꢀe ꢁꢂmmꢂn-mꢂꢃe vꢂꢀcage range (oee
Typical Operating Characteristics). The oeꢁꢂnꢃ, a cher-
maꢀ ohucꢃꢂwn ꢁtrꢁutc, fꢂrꢁeo che ꢃrtver ꢂucpuco tncꢂ a
htgh-tmpeꢃanꢁe ocace tf che ꢃte cemperacure beꢁꢂmeo
exꢁeootve.
Typical Applications
The MAX3082E/MAX3081E/MAX3088E/MAX3089E
cranoꢁetvero are ꢃeotgneꢃ fꢂr btꢃtreꢁctꢂnaꢀ ꢃaca ꢁꢂm-
muntꢁactꢂno ꢂn muꢀctpꢂtnc buo cranomtootꢂn ꢀtneo.
Ftgureo 22 anꢃ 23 ohꢂw cyptꢁaꢀ necwꢂr5 appꢀtꢁactꢂno
ꢁtrꢁutco. Theoe parco ꢁan aꢀoꢂ be uoeꢃ ao ꢀtne repeacero,
wtch ꢁabꢀe ꢀengcho ꢀꢂnger chan 4000 feec, ao ohꢂwn tn
Ftgure ±8.
Tꢂ mtntmtze refꢀeꢁctꢂno, che ꢀtne ohꢂuꢀꢃ be cermtnaceꢃ ac
bꢂch enꢃo tn tco ꢁharaꢁcertoctꢁ tmpeꢃanꢁe, anꢃ ocub
ꢀengcho ꢂff che matn ꢀtne ohꢂuꢀꢃ be 5epc ao ohꢂrc ao
pꢂootbꢀe. The oꢀew-race-ꢀtmtceꢃ MAX3082E/MAX3081E,
anꢃ che cwꢂ mꢂꢃeo ꢂf che MAX3089E, are mꢂre cꢂꢀeranc
ꢂf tmperfeꢁc cermtnactꢂn.
Line Length vs. Data Rate
The RS-481/RS-422 ocanꢃarꢃ ꢁꢂvero ꢀtne ꢀengcho up cꢂ
4000 feec. Fꢂr ꢀtne ꢀengcho greacer chan 4000 feec, uoe
che repeacer appꢀtꢁactꢂn ohꢂwn tn Ftgure ±8.
Ftgureo ±9, 20, anꢃ 2± ohꢂw che oyocem ꢃtfferenctaꢀ vꢂꢀc-
age fꢂr che parco ꢃrtvtng 4000 feec ꢂf 26AWG cwtoceꢃ-
patr wtre ac ±±05Hz tncꢂ ±20Ω ꢀꢂaꢃo.
______________________________________________________________________________________ 19
±±15k ESD-Protected, Fail-Safe, High-Speed (±0Mbps),
Slew-Rate-Limited RS-481/RS-422 Transceivers
A
Y
120Ω
120Ω
RO
RE
R
DI
D
B
Z
Z
DE
DE
B
RE
RO
120Ω
120Ω
DI
R
D
Y
A
Y
Z
B
A
Y
Z
B
A
R
R
D
D
MAX3080E
MAX3081E
MAX3083E
MAX3084E
MAX3086E
MAX3087E
DI
DE RE RO
DI
DE RE RO
NOTE: RE AND DE ON MAX3080E/MAX3083E/MAX3086E/MAX3089E ONLY.
Figure 23. Typical Full-Duplex RS-485 Network
MAX3089E (FULL-DUPLEX)
Ordering Information (continued)
PART
TEMP. RANGE
0°C cꢂ +70°C
0°C cꢂ +70°C
-40°C cꢂ +81°C
-40°C cꢂ +81°C
0°C cꢂ +70°C
0°C cꢂ +70°C
-40°C cꢂ +81°C
-40°C cꢂ +81°C
0°C cꢂ +70°C
0°C cꢂ +70°C
-40°C cꢂ +81°C
-40°C cꢂ +81°C
0°C cꢂ +70°C
0°C cꢂ +70°C
-40°C cꢂ +81°C
-40°C cꢂ +81°C
PIN-PACKAGE
±4 SO
PART
TEMP. RANGE
0°C cꢂ +70°C
0°C cꢂ +70°C
-40°C cꢂ +81°C
-40°C cꢂ +81°C
0°C cꢂ +70°C
0°C cꢂ +70°C
-40°C cꢂ +81°C
-40°C cꢂ +81°C
0°C cꢂ +70°C
0°C cꢂ +70°C
-40°C cꢂ +81°C
-40°C cꢂ +81°C
0°C cꢂ +70°C
0°C cꢂ +70°C
-40°C cꢂ +81°C
-40°C cꢂ +81°C
0°C cꢂ +70°C
0°C cꢂ +70°C
-40°C cꢂ +81°C
-40°C cꢂ +81°C
PIN-PACKAGE
8 SO
MAX3086ECSD
MAX3086ECPD
MAX3086EESD
MAX3086EEPD
MAX3087ECSA
MAX3087ECPA
MAX3087EESA
MAX3087EEPA
MAX3088ECSA
MAX3088ECPA
MAX3088EESA
MAX3088EEPA
MAX3089ECSD
MAX3089ECPD
MAX3089EESD
MAX3089EEPD
MAX3081ECSA
MAX308±ECPA
MAX308±EESA
MAX308±EEPA
MAX3082ECSA
MAX3082ECPA
MAX3082EESA
MAX3082EEPA
MAX3083ECSD
MAX3083ECPD
MAX3083EESD
MAX3083EEPD
MAX3084ECSA
MAX3084ECPA
MAX3084EESA
MAX3084EEPA
MAX3085ECSA
MAX3081ECPA
MAX3081EESA
MAX3081EEPA
±4 Pꢀaoctꢁ DIP
±4 SO
8 Pꢀaoctꢁ DIP
8 SO
±4 Pꢀaoctꢁ DIP
8 SO
8 Pꢀaoctꢁ DIP
8 SO
8 Pꢀaoctꢁ DIP
8 SO
8 Pꢀaoctꢁ DIP
8 SO
8 Pꢀaoctꢁ DIP
8 SO
8 Pꢀaoctꢁ DIP
±4 SO
8 Pꢀaoctꢁ DIP
8 SO
±4 Pꢀaoctꢁ DIP
±4 SO
8 Pꢀaoctꢁ DIP
±4 SO
±4 Pꢀaoctꢁ DIP
8 SO
±4 Pꢀaoctꢁ DIP
±4 SO
8 Pꢀaoctꢁ DIP
8 SO
±4 Pꢀaoctꢁ DIP
8 Pꢀaoctꢁ DIP
8 SO
8 Pꢀaoctꢁ DIP
8 SO
8 Pꢀaoctꢁ DIP
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
20 ____________________Maxim Integrated Products, ±20 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2000 Maxtm Incegraceꢃ Prꢂꢃuꢁco
Prtnceꢃ USA
to a regtocereꢃ craꢃemar5 ꢂf Maxtm Incegraceꢃ Prꢂꢃuꢁco.
This datasheet has been download from:
www.datasheetcatalog.com
Datasheets for electronics components.
相关型号：
MAX3083EESD
【15kVESD-Protected,Fail-Safe,High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers
MAXIM
©2020 ICPDF网 联系我们和版权申明