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Burr-Brown Corporation

ISO422 Datasheet Preview

ISO422 Datasheet

DIFFERENTIAL BUS TRANSCEIVER

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® ISO422
ISO422
ISO422
DIFFERENTIAL BUS TRANSCEIVER
FEATURES
q FULL-/HALF-DUPLEX OPERATION
q 1500Vrms ISOLATION (cont)
q 2500Vrms ISOLATION (1 min)
q 2.5Mbps PERFORMANCE
q LOOP-TEST FACILITY
APPLICATIONS
q BUS TRANSMISSION SYSTEMS
q GROUND LOOP ISOLATION
DE
D
LBE
R
RE
DESCRIPTION
ISO422 provides 1500Vrms isolation for industrial
bus transmission systems. ISO422 may be configured
in full or half duplex modes providing the user with
best flexibility for the application. Transmission rates
of 2.5Mbps can be obtained covering most require-
ments. A loop-back test facility is included. LBE
allows data on the D input to be routed to the R output
for test purposes.
ISO422 is available in 24-pin PDIP and 24-pin Gull
Wing(1) packages and is specified over the temperature
range –40°C to +85°C.
NOTE: (1) Gull Wing version available Q1’99.
Y
Z
A
B
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-1503A
Printed in U.S.A. December, 1998




Burr-Brown Corporation

ISO422 Datasheet Preview

ISO422 Datasheet

DIFFERENTIAL BUS TRANSCEIVER

No Preview Available !

SPECIFICATIONS
At TA = +25°C, and VS = +5V, unless otherwise noted.
PARAMETER
CONDITIONS
ISOLATION
Rated Continuous Isolation
Partial Discharge Voltage
Barrier Impedance
Leakage Current
Creepage Distance
Internal Isolation Distance
Transient Recovery Time
VISO
50Hz, 60Hz
1s, 5 x 5pC/per cycle(2)
240V, 60Hz
2500V, 50Hz
5kV/µs Edge
DRIVER DC CHARACTERISTICS
High Level Input Voltage
Low Level Input Voltage
Input Leakage Current
Input Capacitance
Output Voltage
Differential Output Voltage
Change in Mag Diff Out Voltage
Common-Mode Output Voltage
Change in Mag CM Out Voltage
Output Current
Short-Circuit Output Current
VIH
VIL
IL
CIN
VO
VOD
|VOD|
VOC
|VOC|
IO
D and DE Inputs(3)
D and DE Inputs(3)
D and DE Inputs(3)
D and DE Inputs(3)
VY or VZ
IOY or IOZ = 0
RL = 100
RL = 54
RL = 100or 54(4)
RL = 100or 54
RL = 100or 54(4)
VO = VCC2, Output Disabled
VO = 0V, Output Disabled
VO = VCC2, Continuous
VO = 0V, Continuous
DRIVER SWITCHING CHARACTERISTICS (Figure 6)
Differential Output Delay Time
Skew |tDDH - tDDL|
Differential Output Transition Time
Output Enable Time to HIGH
Output Enable Time to LOW
Output Disable Time from HIGH
Output Disable Time from LOW
tDD
tDT
tDZH
tDZL
tDHZ
tDLZ
RL = 54
RL = 54
RL = 54
RL = 100
RL = 100
RL = 100
RL = 100
RECEIVER DC CHARACTERISTICS
High Level Output Voltage
Low Level Output Voltage
Output Short-Circuit Current
Output HI-Z Leakage
Enable Input HIGH Threshold
Enable Input LOW Threshold
Input Leakage Current
Input Capacitance
Differential Input HIGH Threshold
Differential Input LOW Threshold
Input Hysteresis
Line Input Current
Line Voltage
Input Resistance
VOH IOH = 6mA
VOL IOL = 6mA
IOS 1s max
IOZ VOUT = 0V to VCC1
VIH RE Input(3)
VIL RE Input(3)
IL RE Input(3)
CIN RE Input(3)
VTH VO = 2.8V
VTL VO = 0.4V
See Note 5
IBI Power On (GNDB < VBI < VSB)
VBI Power Off (IBI ±10mA max)
RIN
RECEIVER SWITCHING CHARACTERISTICS (Figure 7)
Propagation Delay L to H
Propagation Delay H to L
Skew |tRLH - tRHL|
Output Rise Time
Output Fall Time
Output Enable Time to HIGH
Output Enable Time to LOW
Output Disable Time from HIGH
Output Disable Time from LOW
tRLH VID = –1.5V to 1.5V, CL = 10pF
tRHL VID = 1.5V to –1.5V, CL = 10pF
tR CL = 10pF
tF CL = 10pF
tRZH CL = 10pF
tRZL CL = 10pF
tRHZ CL = 10pF
tRLZ CL = 10pF
ISO422P, P-U(1)
MIN
TYP
MAX
1500
2500
2
0
1.5
2
1.5
VCC – 1
2
–200
1
> 1014 || 10
1
8.6
0.1
5
5
3.6
2.8
±40
±40
±10
±10
100
–110
120
25
120
120
120
120
30
±10
5
5
100
–100
60
±10
±12
120
120
40
10
10
15
15
15
15
10
1
0.8
5
5
5
5
±200
3
±200
±1000
±1000
150
50
100
150
150
150
150
0.4
±1000
0.8
200
±1000
150
150
25
25
25
25
UNITS
V
V
|| pF
µA
µA
mm
mm
µs
V
V
nA
pF
V
V
V
V
mV
V
mV
nA
nA
mA
mA
ns
ns
ns
ns
ns
ns
ns
V
V
mA
nA
V
V
nA
pF
mV
mV
mV
nA
V
M
ns
ns
ns
ns
ns
ns
ns
ns
ns
®
ISO422
2


Part Number ISO422
Description DIFFERENTIAL BUS TRANSCEIVER
Maker Burr-Brown Corporation
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ISO422 Datasheet PDF





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