2
LTC1345
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OD
Transmitter Differential Output Voltage Figure 1, –4V ≤ V
OS
≤ 4V ● 0.44 0.55 0.66 V
V
OC
Transmitter Common-Mode Output Voltage Figure 1, V
OS
= 0V ● –0.6 0 0.6 V
I
OH
Transmitter Output High Current V
Y, Z
= 0V ● –12.6 –11 –9.4 mA
I
OL
Transmitter Output Low Current V
Y, Z
= 0V ● 9.4 11 12.6 mA
I
OZ
Transmitter Output Leakage Current S1 = S2 = 0V, –5V ≤ V
Y, Z
≤ 5V ● ±1 ±100 µA
R
O
Transmitter Output Impedance –2V ≤ V
Y, Z
≤ 2V 100 kΩ
V
TH
Differential Receiver Input Threshold Voltage –7V ≤ (V
A
+ V
B
)/2 ≤ 7V ● 25 200 mV
∆V
TH
Receiver Input Hysterisis –7V ≤ (V
A
+ V
B
)/2 ≤ 7V 50 mV
I
IN
Receiver Input Current (A, B) –7V ≤ V
A, B
≤ 7V ● 0.4 mA
R
IN
Receiver Input Impedance –7V ≤ V
A, B
≤ 7V ● 17.5 30 kΩ
V
OH
Receiver Output High Voltage I
O
= 4mA, V
B, A
= 0.2V ● 3 4.5 V
V
OL
Receiver Output Low Voltage I
O
= 4mA, V
B, A
= –0.2V ● 0.2 0.4 V
I
OSR
Receiver Output Short-Circuit Current 0V ≤ V
O
≤ V
CC
● 785mA
I
OZR
Receiver Three-State Output Current S1 = S2 = 0V, 0V ≤ V
O
≤ V
CC
● ±10 µA
V
IH
Logic Input High Voltage T, S1, S2, OE ● 2V
V
IL
Logic Input Low Voltage T, S1, S2, OE ● 0.8 V
I
IN
Logic Input Current T, S1, S2, OE ● ±10 µA
I
CC
V
CC
Supply Current Figure 1, V
OS
= 0, S1 = S2 = HIGH ● 118 170 mA
No Load, S1 = S2 = HIGH
● 19 30 mA
Shutdown, S1 = S2 = 0V
● 1 100 µA
V
EE
V
EE
Voltage No Load, S1 = S2 = HIGH –5.5 V
ORDER PART
NUMBER
THREE V.35 TRANSMITTERS AND THREE RECEIVERS
T
JMAX
= 125°C,
θ
JA
= 56°C/W (NW)
T
JMAX
= 125°C,
θ
JA
= 65°C/W (SW)
Consult factory for Military grade parts.
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V ±5% (Notes 2, 3), unless otherwise specified.
(Note 1)
Supply Voltage, V
CC
.................................................. 6V
Input Voltage
Transmitters ........................... –0.3V to (V
CC
+ 0.3V)
Receivers............................................... –18V to 18V
S1, S2, OE ............................... –0.3V to (V
CC
+ 0.3V)
Output Voltage
Transmitters .......................................... –18V to 18V
Receivers................................ –0.3V to (V
CC
+ 0.3V)
V
EE
........................................................ –10V to 0.3V
Short-Circuit Duration
Transmitter Output ..................................... Indefinite
Receiver Output.......................................... Indefinite
V
EE
................................................................. 30 sec
Operating Temperature Range
Commercial ............................................ 0°C to 70°C
Industrial ........................................... –40°C to 85°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
C2
+
C1
+
V
CC
C1
–
GND
T1
T2
T3
S1
S2
R3
R2
R1
OE
C2
–
V
EE
Y1
Z1
Y2
Z2
Y3
Z3
B3
A3
B2
A2
B1
A1
NW PACKAGE
28-LEAD PDIP
SW PACKAGE
28-LEAD PLASTIC SO
TOP VIEW
LTC1345CNW
LTC1345CSW
LTC1345INW
LTC1345ISW
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
UU
W
DC ELECTRICAL CHARACTERISTICS
