For best performance, bypass +5 V dc supplies to com. at or near the device (0.01
µF).
+5 V dc supplies are also internally bypassed with 0.05
µF.
2
As the supply voltage is applied to either side of the AD260, the internal circuitry will go into a power-up reset mode (all lines disabled) for about 30
µs
after the point where
+5 V dc
SYS & FLD
passes above 3.3 V.
3
“Operating” isolation voltage is derived from the Isolation Test Voltage in accordance with such methods as found in VDE-0883 wherein a device will be “hi-pot” tested at twice
the operating voltage, plus one thousand volts. Partial discharge testing, with an acceptance threshold of 80 pC of discharge may be considered the same as a hi-pot test (but
nondestructive).
4
Partial Discharge at 80 pC THLD.
5
Supply Current will increase slightly, but otherwise the unit will function within specification to – 40°C.
Specifications are subject to change without notice.
–2–
REV. 0
AD260
ABSOLUTE MAXIMUM RATINGS*
Parameter
Supply Voltage (+5 V dc
SYS & FLD
)
DC Input Voltage (V
IN MAX
)
DC Output Voltage (V
OUT MAX
)
Clamp Diode Input Current (I
IK
)
Clamp Diode Output Current (I
OK
)
Output DC Current, per Pin (I
OUT
)
DC Current, V
CC
or GND (I
CC
or I
GND
)
Storage Temperature (T
STG
)
Lead Temperature (Soldering, 10 sec)
Electrostatic Protection (V
ESD
)
Conditions
Referred to +5 V dc
SYS & FLD
and 5 V RTN
SYS & FLD
Respectively
Referred to +5 V RTN
SYS & FLD
and 5 V dc
SYS & FLD
Respectively
For V
I
< –0.5 V or V
I
> 5 V RTN
SYS & FLD
+0.5
V
For V
O
< –0.5 V or V
O
> 5 V RTN
SYS & FLD
+0.5
V
Min
–0.5
–0.5
–0.5
–25
–25
–25
–50
–40
4.5
5
Typ
Max
+6.0
+0.5
+0.5
+25
+25
+25
+50
+85
+300
Units
V
V
V
mA
mA
mA
mA
°C
°C
kV
Per MIL-STD-883, Method 3015
*Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device
at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum ratings for extended
periods may effect device reliability.
I/O CONFIGURATIONS AVAILABLE
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
The AD260 is available in several configurations. The choice of
model is determined by the desired number of input vs. output
lines. All models have identical footprints with the power and
enable pins always being in the same locations.
PIN FUNCTION DESCRIPTIONS
Pin
1–5*
6
7
8
9–14
15
16
17
18–22*
Mnemonic
S0 Through S4
ENABLE
SYS
+5 V dc
SYS
5 V RTN
SYS
Function
SYSTEM
Digital Xmt or Rcv from F0 Through F4
System Output Enable/Three-State
System Power Supply (+5 V dc Input)
System Power Supply Common
Not Present On Unit
5 V RTN
FLD
Field Power Supply Common
Field Power Supply (+5 V Input)
+5 V dc
FLD
Field Output Enable/Three-State
ENABLE
FLD
F0 Through F4 Digital Xmt or Rcv from S0 Through S4
S0
S1
S2
S3
S4
ENABLE
SYS
+5Vdc
SYS
5V RTN
SYS
DRVA
DRVCT
DRVB
BOTTOM VIEW
PWRB
FLD
PWRCT
FLD
PWRA
FLD
5V RTN
FLD
+5Vdc
FLD
ENABLE
FLD
F0
F1
F2
F3
F4
12
13
14
15
16
17
18
19
20
21
22
FIELD
*Function of pin determined by model. Refer to Table I.
Caution:
Use care in handling unit as contaminants on the bot-
tom side of the unit or the circuit card to which it is mounted will
lead to reduced breakdown voltage across the isolation barrier.
ORDERING GUIDE
Model Number
AD260AND-0
AD260AND-1
AD260AND-2
AD260AND-3
AD260AND-4
AD260AND-5
AD260BND-0
AD260BND-1
AD260BND-2
AD260BND-3
AD260BND-4
AD260BND-5
Description
0 Inputs, 5 Outputs
1 Input, 4 Outputs
2 Inputs, 3 Outputs
3 Inputs, 2 Outputs
4 Inputs, 1 Output
5 Inputs, 0 Outputs
0 Inputs, 5 Outputs
1 Input, 4 Outputs
2 Inputs, 3 Outputs
3 Inputs, 2 Outputs
4 Inputs, 1 Output
5 Inputs, 0 Outputs
Isolation Test Voltage
1.75 kV rms
1.75 kV rms
1.75 kV rms
1.75 kV rms
1.75 kV rms
1.75 kV rms
3.5 kV rms
3.5 kV rms
3.5 kV rms
3.5 kV rms
3.5 kV rms
3.5 kV rms
Package Description
Plastic DIP
Plastic DIP
Plastic DIP
Plastic DIP
Plastic DIP
Plastic DIP
Plastic DIP
Plastic DIP
Plastic DIP
Plastic DIP
Plastic DIP
Plastic DIP
Package Option
ND-22
ND-22
ND-22
ND-22
ND-22
ND-22
ND-22
ND-22
ND-22
ND-22
ND-22
ND-22
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD260 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.