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Burr-Brown Corporation

ISO508 Datasheet Preview

ISO508 Datasheet

Uni-Directional ISOLATED DIGITAL COUPLERS

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®
ISO508
ISO508
For most current data sheet and other product
information, visit www.burr-brown.com
ISO508
Uni-Directional
ISOLATED DIGITAL COUPLERS
FEATURES
q LOW POWER CONSUMPTION:
< 12mW per Channel Typ.
q 1500Vrms ISOLATION:
100% Tested by Partial Discharge
q ASYNCHRONOUS OR SYNCHRONOUS
OPERATION
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/SEC TRANSFER RATE
q 1µSEC TRANSIENT RECOVERY
APPLICATIONS
q PARALLEL ADCs/DACs
q DIGITAL INTERFACES
q DIGITAL TRANSMISSION
q GROUND-LOOP ISOLATION
DESCRIPTION
ISO508 is an 8-channel, isolated, digital coupler based
on the Burr-Brown capacitive barrier technology. The
ISO508 has additional circuitry to ensure DC accuracy
and overcome the edge-sensitive nature of normal
capacitive devices even on power-up conditions. The
novel circuitry involved will restore the correct output
after a transient interruption should that be necessary.
The ISO508 is designed with input and output
buffers for ease of integration into a µP bus system.
The output buffer has tri-state capability, and by
the use of OE, the output data bus lines can be
made to go high impedance. This feature of the
ISO508, which allows multiple access to a data
bus, requires extra circuitry when using an alterna-
tive solution.
ISO508 will transfer an 8-bit word at rates up to
2Mwords/s without the skew problems associated
in implementing this function with optocouplers.
The ISO508 is available in 24-pin PDIP or 24-pin
Gull Wing packages. Both are specified for opera-
tion from –40°C to +85°C.
L LS
AAH
DATA
T
T
I
IN
CCF
HHT
SLL
HAA
I T T DATA
OUT
F CC
T HH
LEI
CONT
OE
LEO
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/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1998 Burr-Brown Corporation
PDS-11422B
IPSrinOted5in0U8.S.A. June, 1999
®




Burr-Brown Corporation

ISO508 Datasheet Preview

ISO508 Datasheet

Uni-Directional ISOLATED DIGITAL COUPLERS

No Preview Available !

SPECIFICATIONS
At TA = +25°C, and VS = +5V, unless otherwise noted.
PARAMETER
CONDITIONS
ISO508P, P-U
MIN
TYP
MAX
UNITS
ISOLATION
Rated Voltage, Continuous
Partial Discharge Voltage
Barrier Impedance
Leakage Current
VISO
Creepage Distance
Internal Isolation Distance
Transient Recovery Time
DC CHARACTERISTICS
High Level Input Voltage
Low Level Input Voltage
Input Pull-Down Current (Cont, OE)
Input Leakage Current
High Z 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 LEI
Data Hold from LEI
Propagation Delay
VIH
VIL
IPD
IL
IH
CIN
VOH
VOL
IOS
tWL
tIL
tSU
tH
tPD
Data Output Delay
Output Rise and Fall Time
Output Enable
Output Disable
Skew
Max Data Transfer Rate (Sync)
(Cont)
POWER
Supply Voltage
Supply Current
tDD
tOD
tOE
tDIS
VSA, VSB
ISA
Supply Current
ISB
TEMPERATURE RANGE
Operating
Storage
Thermal Resistance, θJA
50Hz, 60Hz
1s, 5x5pC/cycle(1)
240V, 60Hz
2500V, 50Hz
PDIP = “P” Package
PDIP = “P” Package
5kV/µs Edge
See Note 2
See Note 2
VIN = 5V
LEI, LEO, D0-7
VS = 4.4 - 4.5, IOH = 6mA
IOL = 6mA
1 second, max
LEI HI to LO
LEI HI to LO
Data In to Data Out (Cont)
LEI LOW to Data Out (Sync)
LEO High to Data Out Change
10% to 90%, CL = 50pF
OE to Data Valid High or Low
OE to Data Hi-Z
Between any 2 Channels
Either Side
Transmit Side DC
Transmit Side DC Max Rate
Receive Side DC
Receive Side Max Rate
1500
2500
>1014, 10
1
11
0.1
2
5
VS – 1
50
15
0
20
1
1
5
30
9
5
2
1
4.5
5
7
8
12
–40
–40
75
12
1
0.8
50
0.4
1000
520
35
14
35
25
5.5
10
15
12
20
+85
+125
V
V
pF
µA
µA
mm
mm
µs
V
V
µA
nA
nA
pF
V
V
mA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Mw/s
Mw/s
V
mA
mA
mA
mA
°C
°C
°C/W
NOTES: (1) All devices receive a 1s test. Failure criterion is 5 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.
®
ISO508
2


Part Number ISO508
Description Uni-Directional ISOLATED DIGITAL COUPLERS
Maker Burr-Brown Corporation
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