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Burr-Brown Corporation

ISO518 Datasheet Preview

ISO518 Datasheet

Bidirectional ISOLATED DIGITAL COUPLERS

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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
®




Burr-Brown Corporation

ISO518 Datasheet Preview

ISO518 Datasheet

Bidirectional ISOLATED DIGITAL COUPLERS

No Preview Available !

SPECIFICATIONS
At TA = +25°C, and VS = +5V, unless otherwise noted.
PARAMETER
CONDITIONS
ISO518P, P-U
MIN
TYP
MAX
UNITS
ISOLATION
Rated Voltage, Continuous
Partial Discharge Voltage
Barrier Impedance
Leakage Current
Creepage Distance
Internal Isolation Distance
Transient Recovery Time
VISO
50Hz, 60Hz
1s, 5 x 5pC/cycle(1)
240V, 60Hz
2500V, 50Hz
PDIP = “P” and “U” Package
PDIP = “P” and “U” Package
5kV/µs Edge
1500
2500
>1014 || 10
1
11
0.1
12
1
Vrms
Vrms
/pF
µA
µA
mm
mm
µs
DC CHARACTERISTICS
High Level Input Voltage
Low Level Input Voltage
Input Leakage Current
Input Capacitance
High Level Output Voltage
Low Level Output Voltage
Output Short-Circuit Current
TIMING
LE Width (LOW)
LE Width (HIGH)
Data Set-Up to LEA/B
Data Hold from LEA/B
Propagation Delay
Data Output Delay
Output Rise and Fall Time
Output Enable
Output Disable
Max Data Transfer Rate
Skew
VIH See Note 2
VIL See Note 2
IL
CIN
VOH IOH = 6mA
VOL IOL = 6mA
IOS IS, max
tWL
tWH
tSU LEA/B HIGH to LOW
tH LEA/B HIGH to LOW
tPD LEA/B LOW to Data Out
tOD LEO HIGH to Data Out Channels
tRF 10% to 90% Load = 50pF
tEN OE to Data Valid HIGH or LOW
tDIS OE to Data HI-Z
Between Any Two Channels
2
VS –1
100
15
0
20
2
5
5
30
9
5
V
0.8 V
nA
pF
V
0.4 V
mA
ns
ns
ns
ns
520 ns
35 ns
14 ns
35 ns
35 ns
Mw/s
ns
POWER
Supply Voltage
Supply Current
Supply Current
VSA, VSB
Either Side
4.5
5.5 V
ISA / B
Transmit Side DC
5 10 mA
Transmit Side DC Max Rate
7 15 mA
ISB / A
Receive Side DC
Receive Side Max Rate
8 12 mA
12 20 mA
TEMPERATURE RANGE
Operating
Storage
Thermal Resistance, θJA
–40 +85 °C
–40
+125
°C
+75 °C/W
NOTES: (1) All devices receive a 1s test. Failure criterion is > 5pC pulses of 5pC per cycle. (2) Logic inputs are HCT-type and thresholds are a function of power supply
voltage with approximately 400mV hysteresis.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN
assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject
to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not
authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.
®
ISO518
2


Part Number ISO518
Description Bidirectional ISOLATED DIGITAL COUPLERS
Maker Burr-Brown Corporation
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