Datasheet

10
LTC1045
1045fc
TYPICAL APPLICATIONS
U
RCV OUT (5V/DIV)
RCV IN (1V/DIV)
XMT OUT (1V/DIV)
XMT IN (5V/DIV)
Logic Ground Isolation when Two Grounds are within LTC1045 Common Mode Range
–
+
LATCH
COMP
V
CC B
= 5V
V
CC A
= 5V
SYSTEM BSYSTEM A
SETS LOGIC
THRESHOLD REFERRED
TO GND A
(GND B – V
–
+ V
TRIP
) ≤ GND A ≤ (GND B + V
CC B
– 2V – V
TRIP
)
V
–
= –5V
2.7k
LOGIC
OUT
GND B
1045 TA08
THREE-
STATE
BUFFER
TTL/CMOS LOGIC
1k
GND A
V
OL
DIS
V
OH
V
TRIP
IN
OUT
I
SET
V
–
V
+
V
TRIP
= 1.35V
200ns/DIV 1045 TA10a
–
+
20
5V
11
1
TTL IN
1.4V
0.2V
XMT IN
XMT OUT
30-FT RG 174
COAX CABLE
50Ω
13
12
10
V
+
V
–
I
SET
DIS
V
OL
V
OH
RCV IN
1
RCV OUT
TTL OUT
1045 TA10
–
+
20
5V
11
13
12
10
V
+
V
–
I
SET
DIS
V
OL
V
OH
50pF
Coax Cable Driver/Receiver