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PDF ISO518P-U Data sheet ( Hoja de datos )
| Número de pieza | ISO518P-U | |
| Descripción | Bidirectional ISOLATED DIGITAL COUPLERS | |
| Fabricantes | Burr-Brown Corporation | |
| Logotipo |  |
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® ISO518
ISO518
For most current data sheet and other product
information, visit www.burr-brown.com
ISO518
Bidirectional
ISOLATED DIGITAL COUPLERS
FEATURES
q LOW POWER CONSUMPTION:
< 12mW per Channel
q 1500Vrms ISOLATION:
100% Tested by Partial Discharge
q DOUBLE BUFFERED DESIGN FOR
EASY INTEGRATION INTO BUS-BASED
SYSTEMS
q TRI-STATE OUTPUTS
q 24-PIN PDIP OR GULL WING PACKAGES
q 2MWORDS/S TRANSFER RATE
APPLICATIONS
q PARALLEL ADCs/DACs
q DIGITAL INTERFACES
q DIGITAL TRANSMISSION
q GROUND-LOOP ISOLATION
DESCRIPTION
The ISO518 is an 8-channel, isolated, bidirectional
digital coupler based on the Burr-Brown capacitive
barrier technology.
The ISO518 is designed with input and output buffers
for ease of integration into a µP bus system. All data
pins are I/O under the control of the TX pins. Input
and output buffers are controlled by the latch enable
pins. This feature of the ISO518, which allows mul-
tiple access to a data bus, requires extra circuitry when
using an alternative solution.
The ISO518 will transfer an 8-bit word at rates up to
2Mwords/s without the skew problems associated in
implementing this function with optocouplers. The
ISO518 is available in 24-pin PDIP or 24-pin Gull
Wing packages. Both are specified for operation from
–40°C to +85°C.
L LS
AAH
DATA
T
T
I
I/O
CCF
HHT
SLL
HAA
I T T DATA
I/O
F CC
T HH
LEA
TXA/RXA
LEB
TXB/RXB
ISO518 Functional Block Diagram
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1998 Burr-Brown Corporation
PDS-1423B
IPSrinOted5in1U8.S.A. June, 1999
®
1 page  
DATA BUS: A n+1 DATA n DATA n–1
LEA
DATA n–2
BARRIER
ACTIVE
ACTIVE
ACTIVE
Transient
DATA BUS: B
DATA n+1
Invalid
DATA n-1
tWH
LEA/B
DATA IN
DATA OUT
tSU
tWL
tPD
tH
FIGURE 3. Data Corruption.
FIGURE 4. Transmission Timing Diagram.
LE
DATA OUT
TX/RX
FIGURE 5. Output Data Timing.
tOD
tEN
tDIS
VSA
1
DA0 3
D DA1 4 L
A
T
DA2
5A
A DA3 6 T
µP DA4 7 C
B
U DA5 8 H
S DA6 9
I/O DA7 10
L
A
T
C
H
GNDA
A
D
D
R
E
S
S
11
LEI
TXA/RXA
GNDA
11
2
12
S
H
I
F
T
ISO518
VSB
13
22 DB0
21 DB1
D
S
L
L
20 DB2
A
HA A
T
I
T
19 DB3
T
A
F C C 18 DB4 B µP
T
H
H 17 DB5
U
16 DB6
S
15 DB7
I/O
23
23 LEB
14 TXB/RXB
A GNDB
D
D
R
E
S
S
24 GNDB
FIGURE 6. Burr-Brown I/O System using ISO518.
5
ISO518
®
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet ISO518P-U.PDF ] | |
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