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BI-DIRECTIONALDIGITALCOUPLER Datasheet

  • BI-DIRECTIONALDIGITALCOUPLER

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ISO150
Dual, Isolated, Bi-Directional
DIGITAL COUPLER
FEATURES
q
REPLACES HIGH-PERFORMANCE
OPTOCOUPLERS
q
DATA RATE: 80M Baud, typ
q
LOW POWER CONSUMPTION:
25mW Per Channel, max
q
TWO CHANNELS, EACH BI-DIRECTIONAL,
PROGRAMMABLE BY USER
q
PARTIAL DISCHARGE TESTED: 2400Vrms
q
CREEPAGE DISTANCE OF 16.5mm (DIP)
q
LOW COST PER CHANNEL
q
PLASTIC DIP AND SOIC PACKAGES
APPLICATIONS
q
DIGITAL ISOLATION FOR A/D, D/A
CONVERSION
q
ISOLATED UART INTERFACE
q
MULTIPLEXED DATA TRANSMISSION
q
ISOLATED PARALLEL TO SERIAL
INTERFACE
q
TEST EQUIPMENT
q
MICROPROCESSOR SYSTEM INTERFACE
q
ISOLATED LINE RECEIVER
q
GROUND LOOP ELIMINATION
DESCRIPTION
The ISO150 is a two-channel, galvanically isolated
data coupler capable of data rates of 80MBaud, typi-
cal. Each channel can be individually programmed to
transmit data in either direction.
Data is transmitted across the isolation barrier by
coupling complementary pulses through high voltage
0.4pF capacitors. Receiver circuitry restores the pulses
to standard logic levels. Differential signal transmis-
sion rejects isolation-mode voltage transients up to
1.6kV/碌s.
D
2A
R/T
2A
G
A
ISO150 avoids the problems commonly associated
with optocouplers. Optically isolated couplers require
high current pulses and allowance must be made for
LED aging. The ISO150鈥檚 Bi-CMOS circuitry oper-
ates at 25mW per channel.
ISO150 is available in a 24-pin DIP package and in a
28-lead SOIC. Both are specified for operation from
鈥?0藲C to 85藲C.
V
SB
R/T
2B
D
2B
Channel 2
Side A
Side B
Channel 1
D
1A
R/T
1A
V
SA
G
B
R/T
1B
D
1B
International Airport Industrial Park 鈥?Mailing Address: PO Box 11400
Tel: (520) 746-1111 鈥?Twx: 910-952-1111 鈥?Cable: BBRCORP 鈥?/div>
漏 1993 Burr-Brown Corporation
鈥?Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd. 鈥?Tucson, AZ 85706
Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132
PDS-1213B
Printed in U.S.A. August, 1994
SBOS032

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